Interactions between Sildenafil and Sublocade

The buprenorphine in Sublocade has a moderate potential interaction with Adrenal Insufficiency.

Buprenorphine should be used with caution in patients with adrenal insufficiency (e.g., Addison's disease). Cases of adrenal insufficiency have been reported with opioid use, more often with use beyond 1 month. If adrenal insufficiency has occurred with a particular opioid, other opioids may be tried as some cases reported use of a different opioid without recurrence of adrenal insufficiency. Available information does not identify which opioids are more likely to be associated with adrenal insufficiency.

The buprenorphine in Sublocade has a major potential interaction with Alcoholism.

Buprenorphine exposes users to the risks of addiction, abuse, and misuse. Each patient's risk should be assessed before prescribing buprenorphine analgesics, and all patients should be monitored regularly for development of such behaviors and conditions. Risks are increased in patients with personal or family history of substance abuse (including drug or alcohol abuse or addiction) or mental illness (e.g., major depression); the potential for such risks should not prevent proper pain management in any given patient. Patients at increased risk may be prescribed buprenorphine analgesics but use in such patients requires intensive counseling about the risks and proper use of buprenorphine, as well as intensive monitoring for signs of addiction, abuse, and misuse; prescribing naloxone for the emergency treatment of opioid overdose should be considered. All patients using buprenorphine for opioid dependence should be monitored for progression of opioid use disorder and addictive behaviors.

Buprenorphine is sought for nonmedical use (including by individuals with opioid use disorder) and is subject to criminal diversion. These risks should be considered when prescribing or dispensing buprenorphine. Strategies to reduce such risks should be used (e.g., prescribe smallest appropriate quantity, careful storage during use, proper disposal of unused drug).

Sildenafil has a moderate potential interaction with Alcoholism.

Alcohol consumption may intensify the pressure-lowering effects of mild vasodilators, such as phosphodiesterase 5 (PDE5) inhibitors. Therefore, patients that consume alcohol should be warned to limit alcohol intake while receiving these agents.

The buprenorphine in Sublocade has a major potential interaction with Altered Consciousness.

Buprenorphine analgesics are contraindicated in patients with significant respiratory depression. Serious, life-threatening, or fatal respiratory depression may occur with buprenorphine. Patients should be monitored closely for respiratory depression, especially during initiation of therapy or after a dosage increase. Prescribing naloxone for the emergency treatment of opioid overdose should be considered; however, naloxone may not be effective in reversing respiratory depression produced by buprenorphine due to its slow rate of dissociation from mu receptors.

The use of buprenorphine analgesics in patients with acute or severe bronchial asthma in an unmonitored setting or without resuscitative equipment is contraindicated. Buprenorphine-treated patients with significant chronic obstructive pulmonary disease or cor pulmonale, and those with substantially decreased respiratory reserve, hypoxia, hypercapnia, or preexisting respiratory depression are at increased risk of decreased respiratory drive (including apnea), even at recommended dosages of buprenorphine analgesics; buprenorphine for opioid dependence should be used with caution in such patients with compromised respiratory function. In patients who may be susceptible to the intracranial effects of carbon dioxide (CO2) retention (e.g., those with evidence of increased intracranial pressure or brain tumors), buprenorphine analgesics may reduce respiratory drive, and the resulting CO2 retention can further increase intracranial pressure; these patients should be monitored for signs of sedation and respiratory depression, especially when starting therapy. Buprenorphine for opioid dependence should be used with caution in patients with head injury, intracranial lesions, and other circumstances where cerebrospinal pressure may be increased. Opioids may obscure the clinical course in a patient with a head injury; use of buprenorphine analgesics should be avoided in patients with impaired consciousness or coma.

Life-threatening respiratory depression is more likely to occur in older adult, cachectic, or debilitated patients as they may have altered pharmacokinetics (or altered clearance) compared to younger, healthier patients. These patients should be monitored closely, especially when starting and titrating buprenorphine analgesics and when coadministering with other drugs that depress respiration; alternatively, the use of nonopioid analgesics should be considered. Buprenorphine should be used with caution in patients with kyphoscoliosis.

The buprenorphine in Sublocade has a moderate potential interaction with Arrhythmia.

Thorough QT studies with buprenorphine have shown QT prolongation 15 msec or less; this QTc prolongation effect does not appear to be mediated by hERG channels. Based on these 2 findings, buprenorphine is unlikely to be proarrhythmic when used alone in patients without risk factors. However, these observations should be considered in clinical decisions when prescribing buprenorphine to patients with risk factors (e.g., hypokalemia, bradycardia, recent conversion from atrial fibrillation, congestive heart failure, baseline QT prolongation, subclinical long-QT syndrome, severe hypomagnesemia).

The buprenorphine in Sublocade has a major potential interaction with Asphyxia.

Buprenorphine analgesics are contraindicated in patients with significant respiratory depression. Serious, life-threatening, or fatal respiratory depression may occur with buprenorphine. Patients should be monitored closely for respiratory depression, especially during initiation of therapy or after a dosage increase. Prescribing naloxone for the emergency treatment of opioid overdose should be considered; however, naloxone may not be effective in reversing respiratory depression produced by buprenorphine due to its slow rate of dissociation from mu receptors.

The use of buprenorphine analgesics in patients with acute or severe bronchial asthma in an unmonitored setting or without resuscitative equipment is contraindicated. Buprenorphine-treated patients with significant chronic obstructive pulmonary disease or cor pulmonale, and those with substantially decreased respiratory reserve, hypoxia, hypercapnia, or preexisting respiratory depression are at increased risk of decreased respiratory drive (including apnea), even at recommended dosages of buprenorphine analgesics; buprenorphine for opioid dependence should be used with caution in such patients with compromised respiratory function. In patients who may be susceptible to the intracranial effects of carbon dioxide (CO2) retention (e.g., those with evidence of increased intracranial pressure or brain tumors), buprenorphine analgesics may reduce respiratory drive, and the resulting CO2 retention can further increase intracranial pressure; these patients should be monitored for signs of sedation and respiratory depression, especially when starting therapy. Buprenorphine for opioid dependence should be used with caution in patients with head injury, intracranial lesions, and other circumstances where cerebrospinal pressure may be increased. Opioids may obscure the clinical course in a patient with a head injury; use of buprenorphine analgesics should be avoided in patients with impaired consciousness or coma.

Life-threatening respiratory depression is more likely to occur in older adult, cachectic, or debilitated patients as they may have altered pharmacokinetics (or altered clearance) compared to younger, healthier patients. These patients should be monitored closely, especially when starting and titrating buprenorphine analgesics and when coadministering with other drugs that depress respiration; alternatively, the use of nonopioid analgesics should be considered. Buprenorphine should be used with caution in patients with kyphoscoliosis.

The buprenorphine in Sublocade has a moderate potential interaction with Benign Prostatic Hyperplasia.

Buprenorphine should be used with caution in patients with prostatic hypertrophy or urethral stricture. Urinary retention has been reported with buprenorphine.

The buprenorphine in Sublocade has a moderate potential interaction with Biliary Obstruction.

Opioid agonists may cause spasm of the sphincter of Oddi, which may increase biliary tract pressure. Other opioid-induced effects may include a reduction in biliary and pancreatic secretions and transient elevations in serum amylase. Patients with biliary tract disease (including acute pancreatitis) should be regularly evaluated for worsening symptoms. Therapy with opioids should be administered cautiously in patients with biliary tract disease, gallbladder disease, or acute pancreatitis.

Sildenafil has a moderate potential interaction with Bleeding Associated with Coagulation Defect.

The safety of sildenafil in patients with bleeding disorders or active peptic ulceration is unknown. In clinical studies, the incidence of bleeding (i.e., epistaxis) was increased in patients with pulmonary arterial hypertension secondary to connective tissue disease and in patients on concomitant therapy with an oral vitamin K antagonist. There have been postmarketing reports of bleeding events in patients treated with sildenafil for erectile dysfunction.

Sildenafil has a moderate potential interaction with Bleeding Disorder.

The safety of sildenafil in patients with bleeding disorders or active peptic ulceration is unknown. In clinical studies, the incidence of bleeding (i.e., epistaxis) was increased in patients with pulmonary arterial hypertension secondary to connective tissue disease and in patients on concomitant therapy with an oral vitamin K antagonist. There have been postmarketing reports of bleeding events in patients treated with sildenafil for erectile dysfunction.

The buprenorphine in Sublocade has a major potential interaction with Brain Tumor.

The hypoventilation associated with administration of opioid partial agonists can induce cerebral hypoxia and vasodilatation with resultant increase in intracranial pressure. Unless mechanical ventilation is provided, extreme caution is advised when opioid partial agonists are given to patients with head injury, intracranial lesions, or a preexisting elevated CSF pressure. Also, clinicians treating such patients should be aware that opioid partial agonists may interfere with the evaluation of CNS function, especially with respect to consciousness levels, respiratory status, and pupillary changes.

The buprenorphine in Sublocade has a major potential interaction with Brain Tumor.

Buprenorphine analgesics are contraindicated in patients with significant respiratory depression. Serious, life-threatening, or fatal respiratory depression may occur with buprenorphine. Patients should be monitored closely for respiratory depression, especially during initiation of therapy or after a dosage increase. Prescribing naloxone for the emergency treatment of opioid overdose should be considered; however, naloxone may not be effective in reversing respiratory depression produced by buprenorphine due to its slow rate of dissociation from mu receptors.

The use of buprenorphine analgesics in patients with acute or severe bronchial asthma in an unmonitored setting or without resuscitative equipment is contraindicated. Buprenorphine-treated patients with significant chronic obstructive pulmonary disease or cor pulmonale, and those with substantially decreased respiratory reserve, hypoxia, hypercapnia, or preexisting respiratory depression are at increased risk of decreased respiratory drive (including apnea), even at recommended dosages of buprenorphine analgesics; buprenorphine for opioid dependence should be used with caution in such patients with compromised respiratory function. In patients who may be susceptible to the intracranial effects of carbon dioxide (CO2) retention (e.g., those with evidence of increased intracranial pressure or brain tumors), buprenorphine analgesics may reduce respiratory drive, and the resulting CO2 retention can further increase intracranial pressure; these patients should be monitored for signs of sedation and respiratory depression, especially when starting therapy. Buprenorphine for opioid dependence should be used with caution in patients with head injury, intracranial lesions, and other circumstances where cerebrospinal pressure may be increased. Opioids may obscure the clinical course in a patient with a head injury; use of buprenorphine analgesics should be avoided in patients with impaired consciousness or coma.

Life-threatening respiratory depression is more likely to occur in older adult, cachectic, or debilitated patients as they may have altered pharmacokinetics (or altered clearance) compared to younger, healthier patients. These patients should be monitored closely, especially when starting and titrating buprenorphine analgesics and when coadministering with other drugs that depress respiration; alternatively, the use of nonopioid analgesics should be considered. Buprenorphine should be used with caution in patients with kyphoscoliosis.

The buprenorphine in Sublocade has a major potential interaction with Cachexia.

Buprenorphine analgesics are contraindicated in patients with significant respiratory depression. Serious, life-threatening, or fatal respiratory depression may occur with buprenorphine. Patients should be monitored closely for respiratory depression, especially during initiation of therapy or after a dosage increase. Prescribing naloxone for the emergency treatment of opioid overdose should be considered; however, naloxone may not be effective in reversing respiratory depression produced by buprenorphine due to its slow rate of dissociation from mu receptors.

The use of buprenorphine analgesics in patients with acute or severe bronchial asthma in an unmonitored setting or without resuscitative equipment is contraindicated. Buprenorphine-treated patients with significant chronic obstructive pulmonary disease or cor pulmonale, and those with substantially decreased respiratory reserve, hypoxia, hypercapnia, or preexisting respiratory depression are at increased risk of decreased respiratory drive (including apnea), even at recommended dosages of buprenorphine analgesics; buprenorphine for opioid dependence should be used with caution in such patients with compromised respiratory function. In patients who may be susceptible to the intracranial effects of carbon dioxide (CO2) retention (e.g., those with evidence of increased intracranial pressure or brain tumors), buprenorphine analgesics may reduce respiratory drive, and the resulting CO2 retention can further increase intracranial pressure; these patients should be monitored for signs of sedation and respiratory depression, especially when starting therapy. Buprenorphine for opioid dependence should be used with caution in patients with head injury, intracranial lesions, and other circumstances where cerebrospinal pressure may be increased. Opioids may obscure the clinical course in a patient with a head injury; use of buprenorphine analgesics should be avoided in patients with impaired consciousness or coma.

Life-threatening respiratory depression is more likely to occur in older adult, cachectic, or debilitated patients as they may have altered pharmacokinetics (or altered clearance) compared to younger, healthier patients. These patients should be monitored closely, especially when starting and titrating buprenorphine analgesics and when coadministering with other drugs that depress respiration; alternatively, the use of nonopioid analgesics should be considered. Buprenorphine should be used with caution in patients with kyphoscoliosis.

Sildenafil has a major potential interaction with Cardiovascular Conditions and Disorders.

The use of phosphodiesterase-5 (PDE5) inhibitors is not recommended in patients with preexisting cardiovascular disease for whom sexual activity is inadvisable due to the potential cardiac risk. Physicians should also consider the vasodilatory effect of these drugs and whether they may adversely affect patients with underlying cardio- and/or cerebrovascular conditions, in particular those who have suffered a myocardial infarction, stroke, or life-threatening arrhythmia within the last 6 months; those with resting hypotension (BP < 90/50) or hypertension (BP > 170/110); and those with unstable angina associated with cardiac failure or coronary artery disease. There are no controlled clinical data on the safety or efficacy in such patients. Other adverse cardiovascular effects reported include angina pectoris, myocardial infarction, AV block, ventricular arrhythmia, tachycardia, palpitation, hypotension, postural hypotension, syncope, cerebral thrombosis, cerebrovascular hemorrhage, transient ischemic attack, cardiac arrest, heart failure, and hypertension. Many of these events occurred in patients with cardiovascular risk factors and during or shortly after sexual activity.

Sildenafil has a major potential interaction with Cerebral Vascular Disorder.

The use of phosphodiesterase-5 (PDE5) inhibitors is not recommended in patients with preexisting cardiovascular disease for whom sexual activity is inadvisable due to the potential cardiac risk. Physicians should also consider the vasodilatory effect of these drugs and whether they may adversely affect patients with underlying cardio- and/or cerebrovascular conditions, in particular those who have suffered a myocardial infarction, stroke, or life-threatening arrhythmia within the last 6 months; those with resting hypotension (BP < 90/50) or hypertension (BP > 170/110); and those with unstable angina associated with cardiac failure or coronary artery disease. There are no controlled clinical data on the safety or efficacy in such patients. Other adverse cardiovascular effects reported include angina pectoris, myocardial infarction, AV block, ventricular arrhythmia, tachycardia, palpitation, hypotension, postural hypotension, syncope, cerebral thrombosis, cerebrovascular hemorrhage, transient ischemic attack, cardiac arrest, heart failure, and hypertension. Many of these events occurred in patients with cardiovascular risk factors and during or shortly after sexual activity.

The buprenorphine in Sublocade has a major potential interaction with Cerebral Vascular Disorder.

Buprenorphine analgesics are contraindicated in patients with significant respiratory depression. Serious, life-threatening, or fatal respiratory depression may occur with buprenorphine. Patients should be monitored closely for respiratory depression, especially during initiation of therapy or after a dosage increase. Prescribing naloxone for the emergency treatment of opioid overdose should be considered; however, naloxone may not be effective in reversing respiratory depression produced by buprenorphine due to its slow rate of dissociation from mu receptors.

The use of buprenorphine analgesics in patients with acute or severe bronchial asthma in an unmonitored setting or without resuscitative equipment is contraindicated. Buprenorphine-treated patients with significant chronic obstructive pulmonary disease or cor pulmonale, and those with substantially decreased respiratory reserve, hypoxia, hypercapnia, or preexisting respiratory depression are at increased risk of decreased respiratory drive (including apnea), even at recommended dosages of buprenorphine analgesics; buprenorphine for opioid dependence should be used with caution in such patients with compromised respiratory function. In patients who may be susceptible to the intracranial effects of carbon dioxide (CO2) retention (e.g., those with evidence of increased intracranial pressure or brain tumors), buprenorphine analgesics may reduce respiratory drive, and the resulting CO2 retention can further increase intracranial pressure; these patients should be monitored for signs of sedation and respiratory depression, especially when starting therapy. Buprenorphine for opioid dependence should be used with caution in patients with head injury, intracranial lesions, and other circumstances where cerebrospinal pressure may be increased. Opioids may obscure the clinical course in a patient with a head injury; use of buprenorphine analgesics should be avoided in patients with impaired consciousness or coma.

Life-threatening respiratory depression is more likely to occur in older adult, cachectic, or debilitated patients as they may have altered pharmacokinetics (or altered clearance) compared to younger, healthier patients. These patients should be monitored closely, especially when starting and titrating buprenorphine analgesics and when coadministering with other drugs that depress respiration; alternatively, the use of nonopioid analgesics should be considered. Buprenorphine should be used with caution in patients with kyphoscoliosis.

The buprenorphine in Sublocade has a major potential interaction with Cerebral Vascular Disorder.

The hypoventilation associated with administration of opioid partial agonists can induce cerebral hypoxia and vasodilatation with resultant increase in intracranial pressure. Unless mechanical ventilation is provided, extreme caution is advised when opioid partial agonists are given to patients with head injury, intracranial lesions, or a preexisting elevated CSF pressure. Also, clinicians treating such patients should be aware that opioid partial agonists may interfere with the evaluation of CNS function, especially with respect to consciousness levels, respiratory status, and pupillary changes.

The buprenorphine in Sublocade has a major potential interaction with Cor Pulmonale.

Buprenorphine analgesics are contraindicated in patients with significant respiratory depression. Serious, life-threatening, or fatal respiratory depression may occur with buprenorphine. Patients should be monitored closely for respiratory depression, especially during initiation of therapy or after a dosage increase. Prescribing naloxone for the emergency treatment of opioid overdose should be considered; however, naloxone may not be effective in reversing respiratory depression produced by buprenorphine due to its slow rate of dissociation from mu receptors.

The use of buprenorphine analgesics in patients with acute or severe bronchial asthma in an unmonitored setting or without resuscitative equipment is contraindicated. Buprenorphine-treated patients with significant chronic obstructive pulmonary disease or cor pulmonale, and those with substantially decreased respiratory reserve, hypoxia, hypercapnia, or preexisting respiratory depression are at increased risk of decreased respiratory drive (including apnea), even at recommended dosages of buprenorphine analgesics; buprenorphine for opioid dependence should be used with caution in such patients with compromised respiratory function. In patients who may be susceptible to the intracranial effects of carbon dioxide (CO2) retention (e.g., those with evidence of increased intracranial pressure or brain tumors), buprenorphine analgesics may reduce respiratory drive, and the resulting CO2 retention can further increase intracranial pressure; these patients should be monitored for signs of sedation and respiratory depression, especially when starting therapy. Buprenorphine for opioid dependence should be used with caution in patients with head injury, intracranial lesions, and other circumstances where cerebrospinal pressure may be increased. Opioids may obscure the clinical course in a patient with a head injury; use of buprenorphine analgesics should be avoided in patients with impaired consciousness or coma.

Life-threatening respiratory depression is more likely to occur in older adult, cachectic, or debilitated patients as they may have altered pharmacokinetics (or altered clearance) compared to younger, healthier patients. These patients should be monitored closely, especially when starting and titrating buprenorphine analgesics and when coadministering with other drugs that depress respiration; alternatively, the use of nonopioid analgesics should be considered. Buprenorphine should be used with caution in patients with kyphoscoliosis.

The buprenorphine in Sublocade has a moderate potential interaction with Dehydration.

Buprenorphine may cause severe hypotension (including orthostatic hypotension, syncope) in ambulatory patients. Risk is increased in patients whose ability to maintain blood pressure has already been compromised by reduced blood volume or coadministration of certain CNS depressant drugs; these patients should be monitored for signs of hypotension after starting or titrating buprenorphine. In patients with circulatory shock, buprenorphine may cause vasodilation that can further reduce cardiac output and blood pressure; buprenorphine analgesics should be avoided in patients with circulatory shock.

The buprenorphine in Sublocade has a major potential interaction with Depression.

Buprenorphine exposes users to the risks of addiction, abuse, and misuse. Each patient's risk should be assessed before prescribing buprenorphine analgesics, and all patients should be monitored regularly for development of such behaviors and conditions. Risks are increased in patients with personal or family history of substance abuse (including drug or alcohol abuse or addiction) or mental illness (e.g., major depression); the potential for such risks should not prevent proper pain management in any given patient. Patients at increased risk may be prescribed buprenorphine analgesics but use in such patients requires intensive counseling about the risks and proper use of buprenorphine, as well as intensive monitoring for signs of addiction, abuse, and misuse; prescribing naloxone for the emergency treatment of opioid overdose should be considered. All patients using buprenorphine for opioid dependence should be monitored for progression of opioid use disorder and addictive behaviors.

Buprenorphine is sought for nonmedical use (including by individuals with opioid use disorder) and is subject to criminal diversion. These risks should be considered when prescribing or dispensing buprenorphine. Strategies to reduce such risks should be used (e.g., prescribe smallest appropriate quantity, careful storage during use, proper disposal of unused drug).

The buprenorphine in Sublocade has a major potential interaction with Drug Dependence.

Buprenorphine exposes users to the risks of addiction, abuse, and misuse. Each patient's risk should be assessed before prescribing buprenorphine analgesics, and all patients should be monitored regularly for development of such behaviors and conditions. Risks are increased in patients with personal or family history of substance abuse (including drug or alcohol abuse or addiction) or mental illness (e.g., major depression); the potential for such risks should not prevent proper pain management in any given patient. Patients at increased risk may be prescribed buprenorphine analgesics but use in such patients requires intensive counseling about the risks and proper use of buprenorphine, as well as intensive monitoring for signs of addiction, abuse, and misuse; prescribing naloxone for the emergency treatment of opioid overdose should be considered. All patients using buprenorphine for opioid dependence should be monitored for progression of opioid use disorder and addictive behaviors.

Buprenorphine is sought for nonmedical use (including by individuals with opioid use disorder) and is subject to criminal diversion. These risks should be considered when prescribing or dispensing buprenorphine. Strategies to reduce such risks should be used (e.g., prescribe smallest appropriate quantity, careful storage during use, proper disposal of unused drug).

The buprenorphine in Sublocade has a moderate potential interaction with Gallbladder Disease.

Opioid agonists may cause spasm of the sphincter of Oddi, which may increase biliary tract pressure. Other opioid-induced effects may include a reduction in biliary and pancreatic secretions and transient elevations in serum amylase. Patients with biliary tract disease (including acute pancreatitis) should be regularly evaluated for worsening symptoms. Therapy with opioids should be administered cautiously in patients with biliary tract disease, gallbladder disease, or acute pancreatitis.

The buprenorphine in Sublocade has a major potential interaction with Gastrointestinal Obstruction.

Opioid analgesics are contraindicated in patients with known or suspected gastrointestinal obstruction, including paralytic ileus.

The buprenorphine in Sublocade has a major potential interaction with Head Injury.

The hypoventilation associated with administration of opioid partial agonists can induce cerebral hypoxia and vasodilatation with resultant increase in intracranial pressure. Unless mechanical ventilation is provided, extreme caution is advised when opioid partial agonists are given to patients with head injury, intracranial lesions, or a preexisting elevated CSF pressure. Also, clinicians treating such patients should be aware that opioid partial agonists may interfere with the evaluation of CNS function, especially with respect to consciousness levels, respiratory status, and pupillary changes.

The buprenorphine in Sublocade has a major potential interaction with Head Injury.

Buprenorphine analgesics are contraindicated in patients with significant respiratory depression. Serious, life-threatening, or fatal respiratory depression may occur with buprenorphine. Patients should be monitored closely for respiratory depression, especially during initiation of therapy or after a dosage increase. Prescribing naloxone for the emergency treatment of opioid overdose should be considered; however, naloxone may not be effective in reversing respiratory depression produced by buprenorphine due to its slow rate of dissociation from mu receptors.

The use of buprenorphine analgesics in patients with acute or severe bronchial asthma in an unmonitored setting or without resuscitative equipment is contraindicated. Buprenorphine-treated patients with significant chronic obstructive pulmonary disease or cor pulmonale, and those with substantially decreased respiratory reserve, hypoxia, hypercapnia, or preexisting respiratory depression are at increased risk of decreased respiratory drive (including apnea), even at recommended dosages of buprenorphine analgesics; buprenorphine for opioid dependence should be used with caution in such patients with compromised respiratory function. In patients who may be susceptible to the intracranial effects of carbon dioxide (CO2) retention (e.g., those with evidence of increased intracranial pressure or brain tumors), buprenorphine analgesics may reduce respiratory drive, and the resulting CO2 retention can further increase intracranial pressure; these patients should be monitored for signs of sedation and respiratory depression, especially when starting therapy. Buprenorphine for opioid dependence should be used with caution in patients with head injury, intracranial lesions, and other circumstances where cerebrospinal pressure may be increased. Opioids may obscure the clinical course in a patient with a head injury; use of buprenorphine analgesics should be avoided in patients with impaired consciousness or coma.

Life-threatening respiratory depression is more likely to occur in older adult, cachectic, or debilitated patients as they may have altered pharmacokinetics (or altered clearance) compared to younger, healthier patients. These patients should be monitored closely, especially when starting and titrating buprenorphine analgesics and when coadministering with other drugs that depress respiration; alternatively, the use of nonopioid analgesics should be considered. Buprenorphine should be used with caution in patients with kyphoscoliosis.

Sildenafil has a moderate potential interaction with Hearing Loss.

Use of phosphodiesterase-5 (PDE5) inhibitors has been associated with sudden decrease or loss of hearing, which may be accompanied by tinnitus or dizziness. Patients with hearing problems should stop taking these agents and seek prompt medical care.

The buprenorphine in Sublocade has a moderate potential interaction with Heart Failure.

Thorough QT studies with buprenorphine have shown QT prolongation 15 msec or less; this QTc prolongation effect does not appear to be mediated by hERG channels. Based on these 2 findings, buprenorphine is unlikely to be proarrhythmic when used alone in patients without risk factors. However, these observations should be considered in clinical decisions when prescribing buprenorphine to patients with risk factors (e.g., hypokalemia, bradycardia, recent conversion from atrial fibrillation, congestive heart failure, baseline QT prolongation, subclinical long-QT syndrome, severe hypomagnesemia).

Sildenafil has a major potential interaction with History - Cerebrovascular Disease.

The use of phosphodiesterase-5 (PDE5) inhibitors is not recommended in patients with preexisting cardiovascular disease for whom sexual activity is inadvisable due to the potential cardiac risk. Physicians should also consider the vasodilatory effect of these drugs and whether they may adversely affect patients with underlying cardio- and/or cerebrovascular conditions, in particular those who have suffered a myocardial infarction, stroke, or life-threatening arrhythmia within the last 6 months; those with resting hypotension (BP < 90/50) or hypertension (BP > 170/110); and those with unstable angina associated with cardiac failure or coronary artery disease. There are no controlled clinical data on the safety or efficacy in such patients. Other adverse cardiovascular effects reported include angina pectoris, myocardial infarction, AV block, ventricular arrhythmia, tachycardia, palpitation, hypotension, postural hypotension, syncope, cerebral thrombosis, cerebrovascular hemorrhage, transient ischemic attack, cardiac arrest, heart failure, and hypertension. Many of these events occurred in patients with cardiovascular risk factors and during or shortly after sexual activity.

Sildenafil has a major potential interaction with History - Myocardial Infarction.

The use of phosphodiesterase-5 (PDE5) inhibitors is not recommended in patients with preexisting cardiovascular disease for whom sexual activity is inadvisable due to the potential cardiac risk. Physicians should also consider the vasodilatory effect of these drugs and whether they may adversely affect patients with underlying cardio- and/or cerebrovascular conditions, in particular those who have suffered a myocardial infarction, stroke, or life-threatening arrhythmia within the last 6 months; those with resting hypotension (BP < 90/50) or hypertension (BP > 170/110); and those with unstable angina associated with cardiac failure or coronary artery disease. There are no controlled clinical data on the safety or efficacy in such patients. Other adverse cardiovascular effects reported include angina pectoris, myocardial infarction, AV block, ventricular arrhythmia, tachycardia, palpitation, hypotension, postural hypotension, syncope, cerebral thrombosis, cerebrovascular hemorrhage, transient ischemic attack, cardiac arrest, heart failure, and hypertension. Many of these events occurred in patients with cardiovascular risk factors and during or shortly after sexual activity.

The buprenorphine in Sublocade has a moderate potential interaction with Hypokalemia.

Thorough QT studies with buprenorphine have shown QT prolongation 15 msec or less; this QTc prolongation effect does not appear to be mediated by hERG channels. Based on these 2 findings, buprenorphine is unlikely to be proarrhythmic when used alone in patients without risk factors. However, these observations should be considered in clinical decisions when prescribing buprenorphine to patients with risk factors (e.g., hypokalemia, bradycardia, recent conversion from atrial fibrillation, congestive heart failure, baseline QT prolongation, subclinical long-QT syndrome, severe hypomagnesemia).

Sildenafil has a major potential interaction with Hypotension.

The use of phosphodiesterase-5 (PDE5) inhibitors is not recommended in patients with preexisting cardiovascular disease for whom sexual activity is inadvisable due to the potential cardiac risk. Physicians should also consider the vasodilatory effect of these drugs and whether they may adversely affect patients with underlying cardio- and/or cerebrovascular conditions, in particular those who have suffered a myocardial infarction, stroke, or life-threatening arrhythmia within the last 6 months; those with resting hypotension (BP < 90/50) or hypertension (BP > 170/110); and those with unstable angina associated with cardiac failure or coronary artery disease. There are no controlled clinical data on the safety or efficacy in such patients. Other adverse cardiovascular effects reported include angina pectoris, myocardial infarction, AV block, ventricular arrhythmia, tachycardia, palpitation, hypotension, postural hypotension, syncope, cerebral thrombosis, cerebrovascular hemorrhage, transient ischemic attack, cardiac arrest, heart failure, and hypertension. Many of these events occurred in patients with cardiovascular risk factors and during or shortly after sexual activity.

The buprenorphine in Sublocade has a moderate potential interaction with Hypotension.

Buprenorphine may cause severe hypotension (including orthostatic hypotension, syncope) in ambulatory patients. Risk is increased in patients whose ability to maintain blood pressure has already been compromised by reduced blood volume or coadministration of certain CNS depressant drugs; these patients should be monitored for signs of hypotension after starting or titrating buprenorphine. In patients with circulatory shock, buprenorphine may cause vasodilation that can further reduce cardiac output and blood pressure; buprenorphine analgesics should be avoided in patients with circulatory shock.

Sildenafil has a moderate potential interaction with Liver Disease.

Phosphodiesterase 5 (PDE-5) inhibitors are cleared predominantly by hepatic metabolism. The pharmacokinetic disposition of these agents has not been assessed in patients with severe hepatic impairment. No dosage modification is recommended for patients with mild to moderate hepatic impairment, however, therapy with these agents should not be administered to patients with severe hepatic impairment. In patients with mild hepatic impairment a lower dose of these agents should be used as initial therapy.

The buprenorphine in Sublocade has a moderate potential interaction with Liver Disease.

Buprenorphine is metabolized in the liver, and its activity may be increased and/or extended in patients with impaired liver function.
-Buccal film or sublingual tablets: A dose adjustment is recommended for patients with severe liver dysfunction; patients with moderate or severe liver dysfunction should be periodically assessed for signs/symptoms of toxicity or overdose caused by increased buprenorphine levels.
-IM/IV injection: This product should be administered with caution in patients with severe liver dysfunction.
-Subcutaneous injection or subdermal implant: The effect of liver dysfunction on the pharmacokinetics of this product has not been studied. Due to the long-acting nature of the subcutaneous injection, dosage adjustments are not rapidly reflected in plasma buprenorphine levels. Because buprenorphine levels cannot be rapidly adjusted when using the subcutaneous injection, and because the subdermal implant cannot be titrated, patients with preexisting moderate to severe liver dysfunction are not candidates for treatment with these products.
-Transdermal system: This product has not been evaluated in patients with severe liver dysfunction; because this product is only intended for 7-day application, use of an alternate analgesic that may permit more flexibility with dosing in these patients should be considered.

The buprenorphine in Sublocade has a moderate potential interaction with Long QT Syndrome.

Thorough QT studies with buprenorphine have shown QT prolongation 15 msec or less; this QTc prolongation effect does not appear to be mediated by hERG channels. Based on these 2 findings, buprenorphine is unlikely to be proarrhythmic when used alone in patients without risk factors. However, these observations should be considered in clinical decisions when prescribing buprenorphine to patients with risk factors (e.g., hypokalemia, bradycardia, recent conversion from atrial fibrillation, congestive heart failure, baseline QT prolongation, subclinical long-QT syndrome, severe hypomagnesemia).

The buprenorphine in Sublocade has a moderate potential interaction with Magnesium Imbalance.

Thorough QT studies with buprenorphine have shown QT prolongation 15 msec or less; this QTc prolongation effect does not appear to be mediated by hERG channels. Based on these 2 findings, buprenorphine is unlikely to be proarrhythmic when used alone in patients without risk factors. However, these observations should be considered in clinical decisions when prescribing buprenorphine to patients with risk factors (e.g., hypokalemia, bradycardia, recent conversion from atrial fibrillation, congestive heart failure, baseline QT prolongation, subclinical long-QT syndrome, severe hypomagnesemia).

Sildenafil has a moderate potential interaction with Myeloproliferative Disorders.

Prolonged erection greater than 4 hours and priapism (painful erections greater than 6 hours) have been reported during treatment with phosphodiesterase-5 (PDE 5) inhibitors. Priapism may result in penile tissue damage and permanent loss of potency if not treated promptly. These agents should be used cautiously in patients with conditions that may predispose them to priapism such as sickle cell anemia, multiple myeloma, or leukemia, and those with anatomical deformation of the penis (such as angulation, cavernosal fibrosis, or Peyronie's disease). If an erection persists longer than 4 hours, the patient should seek immediate medical assistance.

Sildenafil has a moderate potential interaction with Optic Nerve Disorder.

Sildenafil for the treatment of erectile dysfunction (ED) should be used with caution and only if the benefit outweighs the risk in patients with a history of non-arteritic anterior ischemic optic neuropathy (NAION) or with retinitis pigmentosa. Use of sildenafil for the treatment of pulmonary arterial hypertension is not recommended in patients with retinitis pigmentosa. Advise patients to seek immediate medical attention in the event of a sudden loss of vision in one or both eyes while taking sildenafil; patients taking sildenafil for ED should immediately stop treatment. Most patients who developed NAION during therapy with sildenafil had underlying anatomic or vascular risk factors, including low cup to disc ratio ("crowded disc").

The buprenorphine in Sublocade has a moderate potential interaction with Pancreatitis.

Opioid agonists may cause spasm of the sphincter of Oddi, which may increase biliary tract pressure. Other opioid-induced effects may include a reduction in biliary and pancreatic secretions and transient elevations in serum amylase. Patients with biliary tract disease (including acute pancreatitis) should be regularly evaluated for worsening symptoms. Therapy with opioids should be administered cautiously in patients with biliary tract disease, gallbladder disease, or acute pancreatitis.

Sildenafil has a moderate potential interaction with Penis Disorders.

Prolonged erection greater than 4 hours and priapism (painful erections greater than 6 hours) have been reported during treatment with phosphodiesterase-5 (PDE 5) inhibitors. Priapism may result in penile tissue damage and permanent loss of potency if not treated promptly. These agents should be used cautiously in patients with conditions that may predispose them to priapism such as sickle cell anemia, multiple myeloma, or leukemia, and those with anatomical deformation of the penis (such as angulation, cavernosal fibrosis, or Peyronie's disease). If an erection persists longer than 4 hours, the patient should seek immediate medical assistance.

Sildenafil has a moderate potential interaction with Peptic Ulcer.

The safety of sildenafil in patients with bleeding disorders or active peptic ulceration is unknown. In clinical studies, the incidence of bleeding (i.e., epistaxis) was increased in patients with pulmonary arterial hypertension secondary to connective tissue disease and in patients on concomitant therapy with an oral vitamin K antagonist. There have been postmarketing reports of bleeding events in patients treated with sildenafil for erectile dysfunction.

Sildenafil has a moderate potential interaction with Peyronie Disease.

Prolonged erection greater than 4 hours and priapism (painful erections greater than 6 hours) have been reported during treatment with phosphodiesterase-5 (PDE 5) inhibitors. Priapism may result in penile tissue damage and permanent loss of potency if not treated promptly. These agents should be used cautiously in patients with conditions that may predispose them to priapism such as sickle cell anemia, multiple myeloma, or leukemia, and those with anatomical deformation of the penis (such as angulation, cavernosal fibrosis, or Peyronie's disease). If an erection persists longer than 4 hours, the patient should seek immediate medical assistance.

The buprenorphine in Sublocade has a major potential interaction with Psychiatric Disorders.

Buprenorphine exposes users to the risks of addiction, abuse, and misuse. Each patient's risk should be assessed before prescribing buprenorphine analgesics, and all patients should be monitored regularly for development of such behaviors and conditions. Risks are increased in patients with personal or family history of substance abuse (including drug or alcohol abuse or addiction) or mental illness (e.g., major depression); the potential for such risks should not prevent proper pain management in any given patient. Patients at increased risk may be prescribed buprenorphine analgesics but use in such patients requires intensive counseling about the risks and proper use of buprenorphine, as well as intensive monitoring for signs of addiction, abuse, and misuse; prescribing naloxone for the emergency treatment of opioid overdose should be considered. All patients using buprenorphine for opioid dependence should be monitored for progression of opioid use disorder and addictive behaviors.

Buprenorphine is sought for nonmedical use (including by individuals with opioid use disorder) and is subject to criminal diversion. These risks should be considered when prescribing or dispensing buprenorphine. Strategies to reduce such risks should be used (e.g., prescribe smallest appropriate quantity, careful storage during use, proper disposal of unused drug).

The buprenorphine in Sublocade has a major potential interaction with Pulmonary Impairment.

Buprenorphine analgesics are contraindicated in patients with significant respiratory depression. Serious, life-threatening, or fatal respiratory depression may occur with buprenorphine. Patients should be monitored closely for respiratory depression, especially during initiation of therapy or after a dosage increase. Prescribing naloxone for the emergency treatment of opioid overdose should be considered; however, naloxone may not be effective in reversing respiratory depression produced by buprenorphine due to its slow rate of dissociation from mu receptors.

The use of buprenorphine analgesics in patients with acute or severe bronchial asthma in an unmonitored setting or without resuscitative equipment is contraindicated. Buprenorphine-treated patients with significant chronic obstructive pulmonary disease or cor pulmonale, and those with substantially decreased respiratory reserve, hypoxia, hypercapnia, or preexisting respiratory depression are at increased risk of decreased respiratory drive (including apnea), even at recommended dosages of buprenorphine analgesics; buprenorphine for opioid dependence should be used with caution in such patients with compromised respiratory function. In patients who may be susceptible to the intracranial effects of carbon dioxide (CO2) retention (e.g., those with evidence of increased intracranial pressure or brain tumors), buprenorphine analgesics may reduce respiratory drive, and the resulting CO2 retention can further increase intracranial pressure; these patients should be monitored for signs of sedation and respiratory depression, especially when starting therapy. Buprenorphine for opioid dependence should be used with caution in patients with head injury, intracranial lesions, and other circumstances where cerebrospinal pressure may be increased. Opioids may obscure the clinical course in a patient with a head injury; use of buprenorphine analgesics should be avoided in patients with impaired consciousness or coma.

Life-threatening respiratory depression is more likely to occur in older adult, cachectic, or debilitated patients as they may have altered pharmacokinetics (or altered clearance) compared to younger, healthier patients. These patients should be monitored closely, especially when starting and titrating buprenorphine analgesics and when coadministering with other drugs that depress respiration; alternatively, the use of nonopioid analgesics should be considered. Buprenorphine should be used with caution in patients with kyphoscoliosis.

Sildenafil has a moderate potential interaction with Renal Dysfunction.

Exposure to sildenafil is increased in patients with renal dysfunction. Lower starting doses of sildenafil for the treatment of erectile dysfunction (ED) are recommended in patients with severe renal impairment (CrCl less than 30 mL/min). When sildenafil is used for the treatment of pulmonary arterial hypertension, no dose adjustment is recommended for any degree of renal impairment.

The buprenorphine in Sublocade has a moderate potential interaction with Renal Dysfunction.

Buprenorphine is substantially excreted by the kidney; the risk of adverse reactions to this drug may be greater in patients with impaired renal function. Buprenorphine has not been studied in patients with renal dysfunction; caution is recommended when used in patients with severe renal dysfunction.

The buprenorphine in Sublocade has a major potential interaction with Respiratory Arrest.

Buprenorphine analgesics are contraindicated in patients with significant respiratory depression. Serious, life-threatening, or fatal respiratory depression may occur with buprenorphine. Patients should be monitored closely for respiratory depression, especially during initiation of therapy or after a dosage increase. Prescribing naloxone for the emergency treatment of opioid overdose should be considered; however, naloxone may not be effective in reversing respiratory depression produced by buprenorphine due to its slow rate of dissociation from mu receptors.

The use of buprenorphine analgesics in patients with acute or severe bronchial asthma in an unmonitored setting or without resuscitative equipment is contraindicated. Buprenorphine-treated patients with significant chronic obstructive pulmonary disease or cor pulmonale, and those with substantially decreased respiratory reserve, hypoxia, hypercapnia, or preexisting respiratory depression are at increased risk of decreased respiratory drive (including apnea), even at recommended dosages of buprenorphine analgesics; buprenorphine for opioid dependence should be used with caution in such patients with compromised respiratory function. In patients who may be susceptible to the intracranial effects of carbon dioxide (CO2) retention (e.g., those with evidence of increased intracranial pressure or brain tumors), buprenorphine analgesics may reduce respiratory drive, and the resulting CO2 retention can further increase intracranial pressure; these patients should be monitored for signs of sedation and respiratory depression, especially when starting therapy. Buprenorphine for opioid dependence should be used with caution in patients with head injury, intracranial lesions, and other circumstances where cerebrospinal pressure may be increased. Opioids may obscure the clinical course in a patient with a head injury; use of buprenorphine analgesics should be avoided in patients with impaired consciousness or coma.

Life-threatening respiratory depression is more likely to occur in older adult, cachectic, or debilitated patients as they may have altered pharmacokinetics (or altered clearance) compared to younger, healthier patients. These patients should be monitored closely, especially when starting and titrating buprenorphine analgesics and when coadministering with other drugs that depress respiration; alternatively, the use of nonopioid analgesics should be considered. Buprenorphine should be used with caution in patients with kyphoscoliosis.

Sildenafil has a moderate potential interaction with Retinitis Pigmentosa.

Sildenafil for the treatment of erectile dysfunction (ED) should be used with caution and only if the benefit outweighs the risk in patients with a history of non-arteritic anterior ischemic optic neuropathy (NAION) or with retinitis pigmentosa. Use of sildenafil for the treatment of pulmonary arterial hypertension is not recommended in patients with retinitis pigmentosa. Advise patients to seek immediate medical attention in the event of a sudden loss of vision in one or both eyes while taking sildenafil; patients taking sildenafil for ED should immediately stop treatment. Most patients who developed NAION during therapy with sildenafil had underlying anatomic or vascular risk factors, including low cup to disc ratio ("crowded disc").

The buprenorphine in Sublocade has a major potential interaction with Scoliosis.

Buprenorphine analgesics are contraindicated in patients with significant respiratory depression. Serious, life-threatening, or fatal respiratory depression may occur with buprenorphine. Patients should be monitored closely for respiratory depression, especially during initiation of therapy or after a dosage increase. Prescribing naloxone for the emergency treatment of opioid overdose should be considered; however, naloxone may not be effective in reversing respiratory depression produced by buprenorphine due to its slow rate of dissociation from mu receptors.

The use of buprenorphine analgesics in patients with acute or severe bronchial asthma in an unmonitored setting or without resuscitative equipment is contraindicated. Buprenorphine-treated patients with significant chronic obstructive pulmonary disease or cor pulmonale, and those with substantially decreased respiratory reserve, hypoxia, hypercapnia, or preexisting respiratory depression are at increased risk of decreased respiratory drive (including apnea), even at recommended dosages of buprenorphine analgesics; buprenorphine for opioid dependence should be used with caution in such patients with compromised respiratory function. In patients who may be susceptible to the intracranial effects of carbon dioxide (CO2) retention (e.g., those with evidence of increased intracranial pressure or brain tumors), buprenorphine analgesics may reduce respiratory drive, and the resulting CO2 retention can further increase intracranial pressure; these patients should be monitored for signs of sedation and respiratory depression, especially when starting therapy. Buprenorphine for opioid dependence should be used with caution in patients with head injury, intracranial lesions, and other circumstances where cerebrospinal pressure may be increased. Opioids may obscure the clinical course in a patient with a head injury; use of buprenorphine analgesics should be avoided in patients with impaired consciousness or coma.

Life-threatening respiratory depression is more likely to occur in older adult, cachectic, or debilitated patients as they may have altered pharmacokinetics (or altered clearance) compared to younger, healthier patients. These patients should be monitored closely, especially when starting and titrating buprenorphine analgesics and when coadministering with other drugs that depress respiration; alternatively, the use of nonopioid analgesics should be considered. Buprenorphine should be used with caution in patients with kyphoscoliosis.

Sildenafil has a moderate potential interaction with Seizures.

The use of phosphodiesterase 5 (PDE-5) inhibitors has been associated with seizures. Therapy with these agents should be administered cautiously in patients with preexisting seizure disorders.

The buprenorphine in Sublocade has a moderate potential interaction with Seizures.

Narcotic (opioid) analgesic agents may increase the frequency of seizures in patients with seizure disorders, may increase the risk of seizures occurring in other clinical settings associated with seizures, and, at higher dosages, have been reported to induce seizures in patients without history of seizures. Patients with history of seizure disorders should be regularly evaluated for worsened seizure control during therapy. Prolonged meperidine use may increase the risk of toxicity (e.g., seizures) from the accumulation of the active metabolite (normeperidine).

The buprenorphine in Sublocade has a moderate potential interaction with Shock.

Buprenorphine may cause severe hypotension (including orthostatic hypotension, syncope) in ambulatory patients. Risk is increased in patients whose ability to maintain blood pressure has already been compromised by reduced blood volume or coadministration of certain CNS depressant drugs; these patients should be monitored for signs of hypotension after starting or titrating buprenorphine. In patients with circulatory shock, buprenorphine may cause vasodilation that can further reduce cardiac output and blood pressure; buprenorphine analgesics should be avoided in patients with circulatory shock.

Sildenafil has a moderate potential interaction with Sickle Cell Anemia.

The safety and efficacy of sildenafil for the treatment of pulmonary hypertension secondary to sickle cell disease has not been established; vaso-occlusive crises requiring hospitalization were more commonly reported in this population.

Sildenafil has a moderate potential interaction with Sickle Cell Anemia.

Prolonged erection greater than 4 hours and priapism (painful erections greater than 6 hours) have been reported during treatment with phosphodiesterase-5 (PDE 5) inhibitors. Priapism may result in penile tissue damage and permanent loss of potency if not treated promptly. These agents should be used cautiously in patients with conditions that may predispose them to priapism such as sickle cell anemia, multiple myeloma, or leukemia, and those with anatomical deformation of the penis (such as angulation, cavernosal fibrosis, or Peyronie's disease). If an erection persists longer than 4 hours, the patient should seek immediate medical assistance.

Sildenafil has a moderate potential interaction with Tinnitus.

Use of phosphodiesterase-5 (PDE5) inhibitors has been associated with sudden decrease or loss of hearing, which may be accompanied by tinnitus or dizziness. Patients with hearing problems should stop taking these agents and seek prompt medical care.

The buprenorphine in Sublocade has a moderate potential interaction with Urinary Retention.

Buprenorphine should be used with caution in patients with prostatic hypertrophy or urethral stricture. Urinary retention has been reported with buprenorphine.

Sildenafil has a moderate potential interaction with Visual Defect/Disturbance.

Sildenafil for the treatment of erectile dysfunction (ED) should be used with caution and only if the benefit outweighs the risk in patients with a history of non-arteritic anterior ischemic optic neuropathy (NAION) or with retinitis pigmentosa. Use of sildenafil for the treatment of pulmonary arterial hypertension is not recommended in patients with retinitis pigmentosa. Advise patients to seek immediate medical attention in the event of a sudden loss of vision in one or both eyes while taking sildenafil; patients taking sildenafil for ED should immediately stop treatment. Most patients who developed NAION during therapy with sildenafil had underlying anatomic or vascular risk factors, including low cup to disc ratio ("crowded disc").