Interactions between Quinapril and Vanex Expectorant

The HYDROcodone in Vanex Expectorant has a major potential interaction with Acute Alcohol Intoxication.

The use of opiate agonists is contraindicated in patients with acute alcohol intoxication exhibiting depressed vital signs. The central nervous system depressant effects of opiate agonists may be additive with those of alcohol. Severe respiratory depression and death may occur. Therapy with opiate agonists should be administered cautiously in patients who might be prone to acute alcohol intake.

The HYDROcodone in Vanex Expectorant has a moderate potential interaction with Adrenal Insufficiency.

Patients with Addison's disease may have increased risk of respiratory depression and prolonged CNS depression associated with the use of narcotic (opioid) analgesic agents. Conversely, these agents may cause or potentiate adrenal insufficiency. Therapy with opioids should be administered cautiously and initiated at reduced dosages in patients with adrenocortical insufficiency. Subsequent doses should be titrated based on individual response rather than a fixed dosing schedule.

The HYDROcodone in Vanex Expectorant has a major potential interaction with Alcoholism.

Opiate agonists have the potential to cause dependence and abuse. Tolerance as well as physical and psychological dependence can develop after prolonged use. Abrupt cessation, reduction in dosage, or administration of an opiate antagonist such as naloxone may precipitate withdrawal symptoms. In patients who have developed tolerance to an opiate agonist, overdosage can still produce respiratory depression and death, and cross-tolerance usually will occur with other agents in the class. Addiction-prone individuals, such as those with a history of alcohol or substance abuse, should be under careful surveillance or medical supervision when treated with opiate agonists. It may be prudent to refrain from dispensing large quantities of medication to these patients. After prolonged use or if dependency is suspected, withdrawal of opiate therapy should be undertaken gradually using a dosage-tapering schedule.

The HYDROcodone in Vanex Expectorant has a major potential interaction with Altered Consciousness.

Opiate agonists may produce significant central nervous system and respiratory depression of varying duration, particularly when given in high dosages and/or by rapid intravenous administration. Apnea may result from decreased respiratory drive as well as increased airway resistance, and rigidity of respiratory muscles may occur during rapid IV administration or when these agents are used in the induction of anesthesia. At therapeutic analgesic dosages, the respiratory effects are usually not clinically important except in patients with preexisting pulmonary impairment. Therapy with opiate agonists should be avoided or administered with extreme caution and initiated at reduced dosages in patients with severe CNS depression; sleep apnea; hypoxia, anoxia, or hypercapnia; upper airway obstruction; chronic pulmonary insufficiency; a limited ventilatory reserve; or other respiratory disorders. In the presence of excessive respiratory secretions, the use of opiate agonists may also be problematic because they decrease ciliary activity and reduce the cough reflex. Caution is also advised in patients who may be at increased risk for respiratory depression, such as comatose patients or those with head injury, intracranial lesions, or intracranial hypertension. Clinical monitoring of pulmonary function is recommended, and equipment for resuscitation should be immediately available if parenteral or neuraxial routes are used. Naloxone may be administered to reverse clinically significant respiratory depression, which may be prolonged depending on the opioid agent, cumulative dose, and route of administration.

Quinapril has a major potential interaction with Angioedema.

The use of these agents is contraindicated in patients with hereditary angioedema or a history of idiopathic angioedema. Patients with a history of angioedema unrelated to ACE inhibitors may be at increased risk of angioedema while receiving an ACE inhibitor. Patients should be advised to immediately report any signs or symptoms suggestive of angioedema (swelling of face, extremities, eyes, lips, or tongue, or difficulty swallowing or breathing) and to stop taking the medication until otherwise directed by their physician. Emergency therapy and/or measures to prevent airway obstruction are required for angioedema involving the tongue, glottis, or larynx. Treatment with ACE inhibitors should be discontinued permanently if angioedema develops in association with therapy.

The HYDROcodone in Vanex Expectorant has a moderate potential interaction with Arrhythmia.

Opiate agonists have cholinergic activity. Large doses and/or rapid intravenous administration may produce bradycardia and arrhythmias via stimulation of medullary vagal nuclei. Therapy with opiate agonists should be administered cautiously in patients with a history of arrhythmias. Clinical monitoring of cardiovascular status is recommended during therapy.

The HYDROcodone in Vanex Expectorant has a major potential interaction with Asphyxia.

Opiate agonists may produce significant central nervous system and respiratory depression of varying duration, particularly when given in high dosages and/or by rapid intravenous administration. Apnea may result from decreased respiratory drive as well as increased airway resistance, and rigidity of respiratory muscles may occur during rapid IV administration or when these agents are used in the induction of anesthesia. At therapeutic analgesic dosages, the respiratory effects are usually not clinically important except in patients with preexisting pulmonary impairment. Therapy with opiate agonists should be avoided or administered with extreme caution and initiated at reduced dosages in patients with severe CNS depression; sleep apnea; hypoxia, anoxia, or hypercapnia; upper airway obstruction; chronic pulmonary insufficiency; a limited ventilatory reserve; or other respiratory disorders. In the presence of excessive respiratory secretions, the use of opiate agonists may also be problematic because they decrease ciliary activity and reduce the cough reflex. Caution is also advised in patients who may be at increased risk for respiratory depression, such as comatose patients or those with head injury, intracranial lesions, or intracranial hypertension. Clinical monitoring of pulmonary function is recommended, and equipment for resuscitation should be immediately available if parenteral or neuraxial routes are used. Naloxone may be administered to reverse clinically significant respiratory depression, which may be prolonged depending on the opioid agent, cumulative dose, and route of administration.

The pseudoephedrine in Vanex Expectorant has a moderate potential interaction with Benign Prostatic Hyperplasia.

Sympathomimetic agents may cause or worsen urinary difficulty in patients with prostate enlargement due to smooth muscle contraction in the bladder neck via stimulation of alpha-1 adrenergic receptors. Therapy with sympathomimetic agents should be administered cautiously in patients with hypertrophy or neoplasm of the prostate.

The HYDROcodone in Vanex Expectorant 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.

Quinapril has a major potential interaction with Bone Marrow Depression/Low Blood Counts.

ACE inhibitors may cause bone marrow suppression, rarely in uncomplicated individuals but more frequently in patients with renal impairment, especially if they also have a collagen-vascular disease such as systemic lupus erythematosus or scleroderma. Neutropenia, agranulocytosis, aplastic anemia, hemolytic anemia, eosinophilia and thrombocytopenia have been reported, mostly with captopril. Therapy with ACE inhibitors should be administered cautiously in patients with preexisting blood dyscrasias or complications that may increase the risk of bone marrow depression during ACE inhibitor therapy. Monitoring of blood counts, particularly white blood cells, should be considered.

The HYDROcodone in Vanex Expectorant has a major potential interaction with Brain Tumor.

Opiate agonists may produce significant central nervous system and respiratory depression of varying duration, particularly when given in high dosages and/or by rapid intravenous administration. Apnea may result from decreased respiratory drive as well as increased airway resistance, and rigidity of respiratory muscles may occur during rapid IV administration or when these agents are used in the induction of anesthesia. At therapeutic analgesic dosages, the respiratory effects are usually not clinically important except in patients with preexisting pulmonary impairment. Therapy with opiate agonists should be avoided or administered with extreme caution and initiated at reduced dosages in patients with severe CNS depression; sleep apnea; hypoxia, anoxia, or hypercapnia; upper airway obstruction; chronic pulmonary insufficiency; a limited ventilatory reserve; or other respiratory disorders. In the presence of excessive respiratory secretions, the use of opiate agonists may also be problematic because they decrease ciliary activity and reduce the cough reflex. Caution is also advised in patients who may be at increased risk for respiratory depression, such as comatose patients or those with head injury, intracranial lesions, or intracranial hypertension. Clinical monitoring of pulmonary function is recommended, and equipment for resuscitation should be immediately available if parenteral or neuraxial routes are used. Naloxone may be administered to reverse clinically significant respiratory depression, which may be prolonged depending on the opioid agent, cumulative dose, and route of administration.

The HYDROcodone in Vanex Expectorant has a major potential interaction with Brain Tumor.

The hypoventilation associated with administration of opiate agonists, particularly by the intravenous route, can induce cerebral hypoxia and vasodilatation with resultant increase in intracranial pressure. Opiate agonists should not be used in patients with suspected or known head injury or increased intracranial pressure. Also, clinicians treating such patients should be aware that opiate agonists may interfere with the evaluation of CNS function, especially with respect to consciousness levels, respiratory status, and pupillary changes.

The pseudoephedrine in Vanex Expectorant has a major potential interaction with Cardiovascular Conditions and Disorders.

Sympathomimetic agents may cause adverse cardiovascular effects, particularly when used in high dosages and/or in susceptible patients. In cardiac tissues, these agents may produce positive chronotropic and inotropic effects via stimulation of beta- 1 adrenergic receptors. Cardiac output, oxygen consumption, and the work of the heart may be increased. In the peripheral vasculature, vasoconstriction may occur via stimulation of alpha-1 adrenergic receptors. Palpitations, tachycardia, arrhythmia, hypertension, reflex bradycardia, coronary occlusion, cerebral vasculitis, myocardial infarction, cardiac arrest, and death have been reported. Some of these agents, particularly ephedra alkaloids (ephedrine, ma huang, phenylpropanolamine), may also predispose patients to hemorrhagic and ischemic stroke. Therapy with sympathomimetic agents should generally be avoided or administered cautiously in patients with sensitivity to sympathomimetic amines, hyperthyroidism, or underlying cardiovascular or cerebrovascular disorders. These agents should not be used in patients with severe coronary artery disease or severe/uncontrolled hypertension.

The HYDROcodone in Vanex Expectorant has a major potential interaction with Cerebral Vascular Disorder.

Opiate agonists may produce significant central nervous system and respiratory depression of varying duration, particularly when given in high dosages and/or by rapid intravenous administration. Apnea may result from decreased respiratory drive as well as increased airway resistance, and rigidity of respiratory muscles may occur during rapid IV administration or when these agents are used in the induction of anesthesia. At therapeutic analgesic dosages, the respiratory effects are usually not clinically important except in patients with preexisting pulmonary impairment. Therapy with opiate agonists should be avoided or administered with extreme caution and initiated at reduced dosages in patients with severe CNS depression; sleep apnea; hypoxia, anoxia, or hypercapnia; upper airway obstruction; chronic pulmonary insufficiency; a limited ventilatory reserve; or other respiratory disorders. In the presence of excessive respiratory secretions, the use of opiate agonists may also be problematic because they decrease ciliary activity and reduce the cough reflex. Caution is also advised in patients who may be at increased risk for respiratory depression, such as comatose patients or those with head injury, intracranial lesions, or intracranial hypertension. Clinical monitoring of pulmonary function is recommended, and equipment for resuscitation should be immediately available if parenteral or neuraxial routes are used. Naloxone may be administered to reverse clinically significant respiratory depression, which may be prolonged depending on the opioid agent, cumulative dose, and route of administration.

The HYDROcodone in Vanex Expectorant has a major potential interaction with Cerebral Vascular Disorder.

The hypoventilation associated with administration of opiate agonists, particularly by the intravenous route, can induce cerebral hypoxia and vasodilatation with resultant increase in intracranial pressure. Opiate agonists should not be used in patients with suspected or known head injury or increased intracranial pressure. Also, clinicians treating such patients should be aware that opiate agonists may interfere with the evaluation of CNS function, especially with respect to consciousness levels, respiratory status, and pupillary changes.

Quinapril has a major potential interaction with Cerebrovascular Insufficiency.

ACE inhibitors can cause symptomatic hypotension, most often during the initiation of therapy and in patients who are volume- and/or sodium-depleted or treated for congestive heart failure (CHF). Therapy with ACE inhibitors should be administered cautiously in such patients and in those predisposed to hypovolemic or hyponatremic states (e.g., patients on diuretic therapy, especially if it was recently instituted; those on dietary salt restriction; those with severe or prolonged diarrhea or vomiting; and renal dialysis patients). Volume and/or sodium depletion should be corrected prior to initiating therapy with ACE inhibitors, and the patient should be hemodynamically stable. If concomitant diuretics and/or dietary sodium restriction are employed, reducing or temporarily withholding the dosing of diuretics and/or liberalizing dietary sodium intake for 2 to 3 days in advance can help minimize the risk of severe hypotension in patients who are able to tolerate such adjustments. ACE inhibitors should also be used cautiously in patients in whom excessive hypotension may have serious consequences, such as patients with coronary or cerebrovascular insufficiency. Patients at risk for excessive hypotension should initiate ACE inhibitor therapy under very close medical supervision, and followed closely for the first 2 weeks of treatment and whenever the dosage of ACE inhibitor or diuretic is increased.

The pseudoephedrine in Vanex Expectorant has a major potential interaction with Cerebrovascular Insufficiency.

Sympathomimetic agents may cause adverse cardiovascular effects, particularly when used in high dosages and/or in susceptible patients. In cardiac tissues, these agents may produce positive chronotropic and inotropic effects via stimulation of beta- 1 adrenergic receptors. Cardiac output, oxygen consumption, and the work of the heart may be increased. In the peripheral vasculature, vasoconstriction may occur via stimulation of alpha-1 adrenergic receptors. Palpitations, tachycardia, arrhythmia, hypertension, reflex bradycardia, coronary occlusion, cerebral vasculitis, myocardial infarction, cardiac arrest, and death have been reported. Some of these agents, particularly ephedra alkaloids (ephedrine, ma huang, phenylpropanolamine), may also predispose patients to hemorrhagic and ischemic stroke. Therapy with sympathomimetic agents should generally be avoided or administered cautiously in patients with sensitivity to sympathomimetic amines, hyperthyroidism, or underlying cardiovascular or cerebrovascular disorders. These agents should not be used in patients with severe coronary artery disease or severe/uncontrolled hypertension.

Quinapril has a major potential interaction with Collagen Vascular Disease.

ACE inhibitors may cause bone marrow suppression, rarely in uncomplicated individuals but more frequently in patients with renal impairment, especially if they also have a collagen-vascular disease such as systemic lupus erythematosus or scleroderma. Neutropenia, agranulocytosis, aplastic anemia, hemolytic anemia, eosinophilia and thrombocytopenia have been reported, mostly with captopril. Therapy with ACE inhibitors should be administered cautiously in patients with preexisting blood dyscrasias or complications that may increase the risk of bone marrow depression during ACE inhibitor therapy. Monitoring of blood counts, particularly white blood cells, should be considered.

The HYDROcodone in Vanex Expectorant has a major potential interaction with Constipation.

Narcotic (opioid) analgesic agents increase smooth muscle tone in the gastrointestinal tract and decrease peristalsis, which can lead to elevated intraluminal pressure, spasm, and constipation following prolonged use. In patients with severe or acute inflammatory bowel disease, the decrease in colonic motility may induce toxic megacolon. Therapy with opioids should be administered cautiously in patients with gastrointestinal obstruction, constipation, inflammatory bowel disease, or recent gastrointestinal tract surgery. Gastrointestinal effects appear to be the most pronounced with morphine.

Quinapril has a major potential interaction with Dehydration.

ACE inhibitors can cause symptomatic hypotension, most often during the initiation of therapy and in patients who are volume- and/or sodium-depleted or treated for congestive heart failure (CHF). Therapy with ACE inhibitors should be administered cautiously in such patients and in those predisposed to hypovolemic or hyponatremic states (e.g., patients on diuretic therapy, especially if it was recently instituted; those on dietary salt restriction; those with severe or prolonged diarrhea or vomiting; and renal dialysis patients). Volume and/or sodium depletion should be corrected prior to initiating therapy with ACE inhibitors, and the patient should be hemodynamically stable. If concomitant diuretics and/or dietary sodium restriction are employed, reducing or temporarily withholding the dosing of diuretics and/or liberalizing dietary sodium intake for 2 to 3 days in advance can help minimize the risk of severe hypotension in patients who are able to tolerate such adjustments. ACE inhibitors should also be used cautiously in patients in whom excessive hypotension may have serious consequences, such as patients with coronary or cerebrovascular insufficiency. Patients at risk for excessive hypotension should initiate ACE inhibitor therapy under very close medical supervision, and followed closely for the first 2 weeks of treatment and whenever the dosage of ACE inhibitor or diuretic is increased.

The HYDROcodone in Vanex Expectorant has a major potential interaction with Dehydration.

Opiate agonists can induce vasodilation and significant hypotension, particularly when given in high dosages and/or by rapid intravenous administration. Opiate analgesics cause vasodilatation that may exacerbate hypotension and hypoperfusion and, therefore, are contraindicated in circulatory shock. At therapeutic analgesic dosages, ambulatory patients are more likely to experience dizziness and hypotension than patients who are confined to bed. However, orthostatic hypotension may occur in supine patients upon rising. Therapy with opiate agonists should be administered cautiously and initiated at reduced dosages in patients with hypovolemia, or a predisposition to hypotension. When given by intramuscular or subcutaneous administration, clinicians should also be aware that impaired perfusion in these patients may prevent complete absorption of the drug. With repeated injections, an excessive amount may be absorbed suddenly if normal circulation is reestablished.

Quinapril has a major potential interaction with Diabetes Mellitus.

In patients with hyperkalemia, especially those associated with impaired renal function or congestive heart failure, ACE inhibitors may further raise serum potassium levels. Therapy with ACE inhibitors should be administered cautiously in patients with or predisposed to hyperkalemia, and serum potassium levels should be carefully monitored. Risk factors for the development of hyperkalemia during ACE inhibitor therapy include renal insufficiency, diabetes mellitus, and the concomitant use of potassium-sparing diuretics, potassium supplements, and/or potassium-containing salt substitutes.

The pseudoephedrine in Vanex Expectorant has a moderate potential interaction with Diabetes Mellitus.

Sympathomimetic agents may cause increases in blood glucose concentrations. These effects are usually transient and slight but may be significant with dosages higher than those normally recommended. Therapy with sympathomimetic agents should be administered cautiously in patients with diabetes mellitus. Closer monitoring of blood glucose concentrations may be appropriate.

Quinapril has a major potential interaction with Diarrhea.

ACE inhibitors can cause symptomatic hypotension, most often during the initiation of therapy and in patients who are volume- and/or sodium-depleted or treated for congestive heart failure (CHF). Therapy with ACE inhibitors should be administered cautiously in such patients and in those predisposed to hypovolemic or hyponatremic states (e.g., patients on diuretic therapy, especially if it was recently instituted; those on dietary salt restriction; those with severe or prolonged diarrhea or vomiting; and renal dialysis patients). Volume and/or sodium depletion should be corrected prior to initiating therapy with ACE inhibitors, and the patient should be hemodynamically stable. If concomitant diuretics and/or dietary sodium restriction are employed, reducing or temporarily withholding the dosing of diuretics and/or liberalizing dietary sodium intake for 2 to 3 days in advance can help minimize the risk of severe hypotension in patients who are able to tolerate such adjustments. ACE inhibitors should also be used cautiously in patients in whom excessive hypotension may have serious consequences, such as patients with coronary or cerebrovascular insufficiency. Patients at risk for excessive hypotension should initiate ACE inhibitor therapy under very close medical supervision, and followed closely for the first 2 weeks of treatment and whenever the dosage of ACE inhibitor or diuretic is increased.

The HYDROcodone in Vanex Expectorant has a major potential interaction with Drug Dependence.

Opiate agonists have the potential to cause dependence and abuse. Tolerance as well as physical and psychological dependence can develop after prolonged use. Abrupt cessation, reduction in dosage, or administration of an opiate antagonist such as naloxone may precipitate withdrawal symptoms. In patients who have developed tolerance to an opiate agonist, overdosage can still produce respiratory depression and death, and cross-tolerance usually will occur with other agents in the class. Addiction-prone individuals, such as those with a history of alcohol or substance abuse, should be under careful surveillance or medical supervision when treated with opiate agonists. It may be prudent to refrain from dispensing large quantities of medication to these patients. After prolonged use or if dependency is suspected, withdrawal of opiate therapy should be undertaken gradually using a dosage-tapering schedule.

The HYDROcodone in Vanex Expectorant 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 HYDROcodone in Vanex Expectorant has a major potential interaction with Gastrointestinal Obstruction.

Narcotic (opioid) analgesic agents increase smooth muscle tone in the gastrointestinal tract and decrease peristalsis, which can lead to elevated intraluminal pressure, spasm, and constipation following prolonged use. In patients with severe or acute inflammatory bowel disease, the decrease in colonic motility may induce toxic megacolon. Therapy with opioids should be administered cautiously in patients with gastrointestinal obstruction, constipation, inflammatory bowel disease, or recent gastrointestinal tract surgery. Gastrointestinal effects appear to be the most pronounced with morphine.

The HYDROcodone in Vanex Expectorant has a major potential interaction with Gastrointestinal Obstruction.

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

The pseudoephedrine in Vanex Expectorant has a moderate potential interaction with Gastrointestinal Obstruction.

The extended-release formulation of pseudoephedrine (Sudafed 24 Hour) contains a non-deformable material. There have been rare reports of obstructive symptoms in patients with known strictures following the ingestion of similar sustained-release products. Therapy with the extended-release formulation of pseudoephedrine should be administered cautiously in patients with preexisting severe gastrointestinal narrowing or obstruction, whether pathologic or iatrogenic.

The pseudoephedrine in Vanex Expectorant has a moderate potential interaction with Glaucoma/Intraocular Hypertension.

Sympathomimetic agents can induce transient mydriasis via stimulation of alpha-1 adrenergic receptors. In patients with anatomically narrow angles or narrow-angle glaucoma, pupillary dilation can provoke an acute attack. In patients with other forms of glaucoma, mydriasis may occasionally increase intraocular pressure. Therapy with sympathomimetic agents should be administered cautiously in patients with or predisposed to glaucoma, particularly narrow-angle glaucoma.

The HYDROcodone in Vanex Expectorant has a major potential interaction with Head Injury.

The hypoventilation associated with administration of opiate agonists, particularly by the intravenous route, can induce cerebral hypoxia and vasodilatation with resultant increase in intracranial pressure. Opiate agonists should not be used in patients with suspected or known head injury or increased intracranial pressure. Also, clinicians treating such patients should be aware that opiate agonists may interfere with the evaluation of CNS function, especially with respect to consciousness levels, respiratory status, and pupillary changes.

The HYDROcodone in Vanex Expectorant has a major potential interaction with Head Injury.

Opiate agonists may produce significant central nervous system and respiratory depression of varying duration, particularly when given in high dosages and/or by rapid intravenous administration. Apnea may result from decreased respiratory drive as well as increased airway resistance, and rigidity of respiratory muscles may occur during rapid IV administration or when these agents are used in the induction of anesthesia. At therapeutic analgesic dosages, the respiratory effects are usually not clinically important except in patients with preexisting pulmonary impairment. Therapy with opiate agonists should be avoided or administered with extreme caution and initiated at reduced dosages in patients with severe CNS depression; sleep apnea; hypoxia, anoxia, or hypercapnia; upper airway obstruction; chronic pulmonary insufficiency; a limited ventilatory reserve; or other respiratory disorders. In the presence of excessive respiratory secretions, the use of opiate agonists may also be problematic because they decrease ciliary activity and reduce the cough reflex. Caution is also advised in patients who may be at increased risk for respiratory depression, such as comatose patients or those with head injury, intracranial lesions, or intracranial hypertension. Clinical monitoring of pulmonary function is recommended, and equipment for resuscitation should be immediately available if parenteral or neuraxial routes are used. Naloxone may be administered to reverse clinically significant respiratory depression, which may be prolonged depending on the opioid agent, cumulative dose, and route of administration.

Quinapril has a major potential interaction with Hemodialysis.

Anaphylactoid reactions have been reported in patients undergoing hemodialysis with high-flux polyacrylonitrile membranes and treated concomitantly with an ACE inhibitor. The frequency and mechanism of this interaction have not been established, and it is not known whether the interaction occurs with other membrane types. Therapy with ACE inhibitors should be administered cautiously in patients requiring hemodialysis.

Quinapril has a major potential interaction with Hemodialysis.

ACE inhibitors can cause symptomatic hypotension, most often during the initiation of therapy and in patients who are volume- and/or sodium-depleted or treated for congestive heart failure (CHF). Therapy with ACE inhibitors should be administered cautiously in such patients and in those predisposed to hypovolemic or hyponatremic states (e.g., patients on diuretic therapy, especially if it was recently instituted; those on dietary salt restriction; those with severe or prolonged diarrhea or vomiting; and renal dialysis patients). Volume and/or sodium depletion should be corrected prior to initiating therapy with ACE inhibitors, and the patient should be hemodynamically stable. If concomitant diuretics and/or dietary sodium restriction are employed, reducing or temporarily withholding the dosing of diuretics and/or liberalizing dietary sodium intake for 2 to 3 days in advance can help minimize the risk of severe hypotension in patients who are able to tolerate such adjustments. ACE inhibitors should also be used cautiously in patients in whom excessive hypotension may have serious consequences, such as patients with coronary or cerebrovascular insufficiency. Patients at risk for excessive hypotension should initiate ACE inhibitor therapy under very close medical supervision, and followed closely for the first 2 weeks of treatment and whenever the dosage of ACE inhibitor or diuretic is increased.

Quinapril has a major potential interaction with Hyperkalemia.

In patients with hyperkalemia, especially those associated with impaired renal function or congestive heart failure, ACE inhibitors may further raise serum potassium levels. Therapy with ACE inhibitors should be administered cautiously in patients with or predisposed to hyperkalemia, and serum potassium levels should be carefully monitored. Risk factors for the development of hyperkalemia during ACE inhibitor therapy include renal insufficiency, diabetes mellitus, and the concomitant use of potassium-sparing diuretics, potassium supplements, and/or potassium-containing salt substitutes.

The pseudoephedrine in Vanex Expectorant has a major potential interaction with Hyperthyroidism.

Sympathomimetic agents may cause adverse cardiovascular effects, particularly when used in high dosages and/or in susceptible patients. In cardiac tissues, these agents may produce positive chronotropic and inotropic effects via stimulation of beta- 1 adrenergic receptors. Cardiac output, oxygen consumption, and the work of the heart may be increased. In the peripheral vasculature, vasoconstriction may occur via stimulation of alpha-1 adrenergic receptors. Palpitations, tachycardia, arrhythmia, hypertension, reflex bradycardia, coronary occlusion, cerebral vasculitis, myocardial infarction, cardiac arrest, and death have been reported. Some of these agents, particularly ephedra alkaloids (ephedrine, ma huang, phenylpropanolamine), may also predispose patients to hemorrhagic and ischemic stroke. Therapy with sympathomimetic agents should generally be avoided or administered cautiously in patients with sensitivity to sympathomimetic amines, hyperthyroidism, or underlying cardiovascular or cerebrovascular disorders. These agents should not be used in patients with severe coronary artery disease or severe/uncontrolled hypertension.

Quinapril has a major potential interaction with Hyponatremia.

ACE inhibitors can cause symptomatic hypotension, most often during the initiation of therapy and in patients who are volume- and/or sodium-depleted or treated for congestive heart failure (CHF). Therapy with ACE inhibitors should be administered cautiously in such patients and in those predisposed to hypovolemic or hyponatremic states (e.g., patients on diuretic therapy, especially if it was recently instituted; those on dietary salt restriction; those with severe or prolonged diarrhea or vomiting; and renal dialysis patients). Volume and/or sodium depletion should be corrected prior to initiating therapy with ACE inhibitors, and the patient should be hemodynamically stable. If concomitant diuretics and/or dietary sodium restriction are employed, reducing or temporarily withholding the dosing of diuretics and/or liberalizing dietary sodium intake for 2 to 3 days in advance can help minimize the risk of severe hypotension in patients who are able to tolerate such adjustments. ACE inhibitors should also be used cautiously in patients in whom excessive hypotension may have serious consequences, such as patients with coronary or cerebrovascular insufficiency. Patients at risk for excessive hypotension should initiate ACE inhibitor therapy under very close medical supervision, and followed closely for the first 2 weeks of treatment and whenever the dosage of ACE inhibitor or diuretic is increased.

The HYDROcodone in Vanex Expectorant has a major potential interaction with Hypotension.

Opiate agonists can induce vasodilation and significant hypotension, particularly when given in high dosages and/or by rapid intravenous administration. Opiate analgesics cause vasodilatation that may exacerbate hypotension and hypoperfusion and, therefore, are contraindicated in circulatory shock. At therapeutic analgesic dosages, ambulatory patients are more likely to experience dizziness and hypotension than patients who are confined to bed. However, orthostatic hypotension may occur in supine patients upon rising. Therapy with opiate agonists should be administered cautiously and initiated at reduced dosages in patients with hypovolemia, or a predisposition to hypotension. When given by intramuscular or subcutaneous administration, clinicians should also be aware that impaired perfusion in these patients may prevent complete absorption of the drug. With repeated injections, an excessive amount may be absorbed suddenly if normal circulation is reestablished.

The HYDROcodone in Vanex Expectorant has a major potential interaction with Infectious Gastroenteritis.

Narcotic (opioid) analgesic agents may prolong and/or worsen diarrhea associated with organisms that invade the intestinal mucosa, such as toxigenic Escherichia coli, Salmonella, Shigella, and pseudomembranous colitis due to broad-spectrum antibiotics. These agents decrease gastrointestinal motility, which may delay the excretion of infective gastroenteric organisms and/or their toxins. Other symptoms and complications such as fever, shedding of organisms, and extraintestinal illness may also be increased or prolonged. Therapy with opioids should be avoided or administered cautiously in patients with infectious diarrhea, particularly that due to pseudomembranous enterocolitis or enterotoxin-producing bacteria or if accompanied by high fever, pus, or blood in the stool.

The HYDROcodone in Vanex Expectorant has a major potential interaction with Inflammatory Bowel Disease.

Narcotic (opioid) analgesic agents increase smooth muscle tone in the gastrointestinal tract and decrease peristalsis, which can lead to elevated intraluminal pressure, spasm, and constipation following prolonged use. In patients with severe or acute inflammatory bowel disease, the decrease in colonic motility may induce toxic megacolon. Therapy with opioids should be administered cautiously in patients with gastrointestinal obstruction, constipation, inflammatory bowel disease, or recent gastrointestinal tract surgery. Gastrointestinal effects appear to be the most pronounced with morphine.

The HYDROcodone in Vanex Expectorant has a major potential interaction with Intestinal Anastomoses.

Narcotic (opioid) analgesic agents increase smooth muscle tone in the gastrointestinal tract and decrease peristalsis, which can lead to elevated intraluminal pressure, spasm, and constipation following prolonged use. In patients with severe or acute inflammatory bowel disease, the decrease in colonic motility may induce toxic megacolon. Therapy with opioids should be administered cautiously in patients with gastrointestinal obstruction, constipation, inflammatory bowel disease, or recent gastrointestinal tract surgery. Gastrointestinal effects appear to be the most pronounced with morphine.

Quinapril has a major potential interaction with Ischemic Heart Disease.

ACE inhibitors can cause symptomatic hypotension, most often during the initiation of therapy and in patients who are volume- and/or sodium-depleted or treated for congestive heart failure (CHF). Therapy with ACE inhibitors should be administered cautiously in such patients and in those predisposed to hypovolemic or hyponatremic states (e.g., patients on diuretic therapy, especially if it was recently instituted; those on dietary salt restriction; those with severe or prolonged diarrhea or vomiting; and renal dialysis patients). Volume and/or sodium depletion should be corrected prior to initiating therapy with ACE inhibitors, and the patient should be hemodynamically stable. If concomitant diuretics and/or dietary sodium restriction are employed, reducing or temporarily withholding the dosing of diuretics and/or liberalizing dietary sodium intake for 2 to 3 days in advance can help minimize the risk of severe hypotension in patients who are able to tolerate such adjustments. ACE inhibitors should also be used cautiously in patients in whom excessive hypotension may have serious consequences, such as patients with coronary or cerebrovascular insufficiency. Patients at risk for excessive hypotension should initiate ACE inhibitor therapy under very close medical supervision, and followed closely for the first 2 weeks of treatment and whenever the dosage of ACE inhibitor or diuretic is increased.

Quinapril has a moderate potential interaction with Liver Disease.

Rarely, elevations of liver enzymes and/or serum bilirubin have occurred with the use of ACE inhibitors. Patients receiving ACE inhibitors who develop jaundice or marked elevations of hepatic enzymes should discontinue the ACE inhibitor and receive appropriate medical follow-up.

The HYDROcodone in Vanex Expectorant has a moderate potential interaction with Liver Disease.

Narcotic (opioid) analgesic agents are extensively metabolized by the liver, and several of them (e.g., codeine, hydrocodone, meperidine, methadone, morphine, propoxyphene) have active metabolites that are further converted to inactive substances. The serum concentrations of these agents and their metabolites may be increased and the half-lives prolonged in patients with impaired hepatic function. Therapy with opioids should be administered cautiously and initiated at reduced dosages in patients with liver disease. Subsequent doses should be titrated based on individual response rather than a fixed dosing schedule.

The HYDROcodone in Vanex Expectorant 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.

The pseudoephedrine in Vanex Expectorant has a moderate potential interaction with Phenylketonuria.

Chewable products frequently may contain aspartame, which is metabolized in the gastrointestinal tract to phenylalanine. Sudafed (brand of pseudoephedrine) chewable 15 mg tablets provide the equivalent of 0.78 mg of phenylalanine per each tablet. The aspartame/phenylalanine content should be considered when this and similar products are used in patients who must restrict their intake of phenylalanine (i.e. phenylketonurics).

The pseudoephedrine in Vanex Expectorant has a major potential interaction with Pheochromocytoma.

Sympathomimetic agents may cause adverse cardiovascular effects, particularly when used in high dosages and/or in susceptible patients. In cardiac tissues, these agents may produce positive chronotropic and inotropic effects via stimulation of beta- 1 adrenergic receptors. Cardiac output, oxygen consumption, and the work of the heart may be increased. In the peripheral vasculature, vasoconstriction may occur via stimulation of alpha-1 adrenergic receptors. Palpitations, tachycardia, arrhythmia, hypertension, reflex bradycardia, coronary occlusion, cerebral vasculitis, myocardial infarction, cardiac arrest, and death have been reported. Some of these agents, particularly ephedra alkaloids (ephedrine, ma huang, phenylpropanolamine), may also predispose patients to hemorrhagic and ischemic stroke. Therapy with sympathomimetic agents should generally be avoided or administered cautiously in patients with sensitivity to sympathomimetic amines, hyperthyroidism, or underlying cardiovascular or cerebrovascular disorders. These agents should not be used in patients with severe coronary artery disease or severe/uncontrolled hypertension.

The HYDROcodone in Vanex Expectorant has a major potential interaction with Prematurity/Underweight in Infancy.

The use of narcotic (opioid) analgesic agents is contraindicated in premature infants. These agents may cross the immature blood-brain barrier to a greater extent than in adults, resulting in disproportionate respiratory depression.

The pseudoephedrine in Vanex Expectorant has a moderate potential interaction with Prostate Tumor, Benign.

Sympathomimetic agents may cause or worsen urinary difficulty in patients with prostate enlargement due to smooth muscle contraction in the bladder neck via stimulation of alpha-1 adrenergic receptors. Therapy with sympathomimetic agents should be administered cautiously in patients with hypertrophy or neoplasm of the prostate.

The HYDROcodone in Vanex Expectorant has a major potential interaction with Pulmonary Impairment.

Opiate agonists may produce significant central nervous system and respiratory depression of varying duration, particularly when given in high dosages and/or by rapid intravenous administration. Apnea may result from decreased respiratory drive as well as increased airway resistance, and rigidity of respiratory muscles may occur during rapid IV administration or when these agents are used in the induction of anesthesia. At therapeutic analgesic dosages, the respiratory effects are usually not clinically important except in patients with preexisting pulmonary impairment. Therapy with opiate agonists should be avoided or administered with extreme caution and initiated at reduced dosages in patients with severe CNS depression; sleep apnea; hypoxia, anoxia, or hypercapnia; upper airway obstruction; chronic pulmonary insufficiency; a limited ventilatory reserve; or other respiratory disorders. In the presence of excessive respiratory secretions, the use of opiate agonists may also be problematic because they decrease ciliary activity and reduce the cough reflex. Caution is also advised in patients who may be at increased risk for respiratory depression, such as comatose patients or those with head injury, intracranial lesions, or intracranial hypertension. Clinical monitoring of pulmonary function is recommended, and equipment for resuscitation should be immediately available if parenteral or neuraxial routes are used. Naloxone may be administered to reverse clinically significant respiratory depression, which may be prolonged depending on the opioid agent, cumulative dose, and route of administration.

Quinapril has a major potential interaction with Renal Dysfunction.

ACE inhibitors may cause bone marrow suppression, rarely in uncomplicated individuals but more frequently in patients with renal impairment, especially if they also have a collagen-vascular disease such as systemic lupus erythematosus or scleroderma. Neutropenia, agranulocytosis, aplastic anemia, hemolytic anemia, eosinophilia and thrombocytopenia have been reported, mostly with captopril. Therapy with ACE inhibitors should be administered cautiously in patients with preexisting blood dyscrasias or complications that may increase the risk of bone marrow depression during ACE inhibitor therapy. Monitoring of blood counts, particularly white blood cells, should be considered.

Quinapril has a major potential interaction with Renal Dysfunction.

In patients with hyperkalemia, especially those associated with impaired renal function or congestive heart failure, ACE inhibitors may further raise serum potassium levels. Therapy with ACE inhibitors should be administered cautiously in patients with or predisposed to hyperkalemia, and serum potassium levels should be carefully monitored. Risk factors for the development of hyperkalemia during ACE inhibitor therapy include renal insufficiency, diabetes mellitus, and the concomitant use of potassium-sparing diuretics, potassium supplements, and/or potassium-containing salt substitutes.

Quinapril has a moderate potential interaction with Renal Dysfunction.

With the exception of fosinopril, ACE inhibitors (and/or their active metabolites in some cases) are primarily eliminated by the kidney and may accumulate in patients with renal impairment. ACE inhibitors can also worsen renal function in some patients by blocking the effect of angiotensin II-mediated efferent arteriolar vasoconstriction, thereby decreasing glomerular filtration. Therapy with ACE inhibitors should be administered cautiously in patients with preexisting renal dysfunction, particularly those with renovascular disease. Patients with moderate to severe renal impairment usually require lower or less frequent doses and smaller increments in dose. In addition, a dosage reduction or discontinuation of any concomitantly administered diuretics may be helpful. Fosinopril probably does not require dosage adjustments unless hepatic function is also significantly impaired.

In patients with bilateral renal artery stenosis or renal artery stenosis in a solitary kidney, ACE inhibitors may reduce renal perfusion to a critically low level. Renal function should be monitored closely for the first few weeks of therapy.

The HYDROcodone in Vanex Expectorant has a moderate potential interaction with Renal Dysfunction.

Although narcotic (opioid) analgesic agents are generally metabolized by the liver, renal impairment can alter the elimination of these agents and their metabolites (some of which are pharmacologically active), resulting in drug accumulation and increased risk of toxicity. Therapy with opioids should be administered cautiously and initiated at reduced dosages in patients with significantly impaired renal function. Subsequent doses should be titrated based on individual response rather than a fixed dosing schedule.

The HYDROcodone in Vanex Expectorant has a major potential interaction with Respiratory Arrest.

Opiate agonists may produce significant central nervous system and respiratory depression of varying duration, particularly when given in high dosages and/or by rapid intravenous administration. Apnea may result from decreased respiratory drive as well as increased airway resistance, and rigidity of respiratory muscles may occur during rapid IV administration or when these agents are used in the induction of anesthesia. At therapeutic analgesic dosages, the respiratory effects are usually not clinically important except in patients with preexisting pulmonary impairment. Therapy with opiate agonists should be avoided or administered with extreme caution and initiated at reduced dosages in patients with severe CNS depression; sleep apnea; hypoxia, anoxia, or hypercapnia; upper airway obstruction; chronic pulmonary insufficiency; a limited ventilatory reserve; or other respiratory disorders. In the presence of excessive respiratory secretions, the use of opiate agonists may also be problematic because they decrease ciliary activity and reduce the cough reflex. Caution is also advised in patients who may be at increased risk for respiratory depression, such as comatose patients or those with head injury, intracranial lesions, or intracranial hypertension. Clinical monitoring of pulmonary function is recommended, and equipment for resuscitation should be immediately available if parenteral or neuraxial routes are used. Naloxone may be administered to reverse clinically significant respiratory depression, which may be prolonged depending on the opioid agent, cumulative dose, and route of administration.

The HYDROcodone in Vanex Expectorant 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 HYDROcodone in Vanex Expectorant has a major potential interaction with Shock.

Opiate agonists can induce vasodilation and significant hypotension, particularly when given in high dosages and/or by rapid intravenous administration. Opiate analgesics cause vasodilatation that may exacerbate hypotension and hypoperfusion and, therefore, are contraindicated in circulatory shock. At therapeutic analgesic dosages, ambulatory patients are more likely to experience dizziness and hypotension than patients who are confined to bed. However, orthostatic hypotension may occur in supine patients upon rising. Therapy with opiate agonists should be administered cautiously and initiated at reduced dosages in patients with hypovolemia, or a predisposition to hypotension. When given by intramuscular or subcutaneous administration, clinicians should also be aware that impaired perfusion in these patients may prevent complete absorption of the drug. With repeated injections, an excessive amount may be absorbed suddenly if normal circulation is reestablished.

The HYDROcodone in Vanex Expectorant has a moderate potential interaction with Urinary Retention.

Narcotic (opioid) analgesic agents may inhibit the urinary voiding reflex and increase the tone of the vesical sphincter in the bladder. Acute urinary retention requiring catheterization may occur, particularly in patients with prostatic hypertrophy or urethral stricture and in older adult patients. These agents may also decrease urine production via direct effects on the kidney and central stimulation of the release of vasopressin. Therapy with opioids should be administered cautiously in patients with or predisposed to urinary retention and/or oliguria. The effects on smooth muscle tone appear to be the most pronounced with morphine.

Quinapril has a major potential interaction with Vomiting.

ACE inhibitors can cause symptomatic hypotension, most often during the initiation of therapy and in patients who are volume- and/or sodium-depleted or treated for congestive heart failure (CHF). Therapy with ACE inhibitors should be administered cautiously in such patients and in those predisposed to hypovolemic or hyponatremic states (e.g., patients on diuretic therapy, especially if it was recently instituted; those on dietary salt restriction; those with severe or prolonged diarrhea or vomiting; and renal dialysis patients). Volume and/or sodium depletion should be corrected prior to initiating therapy with ACE inhibitors, and the patient should be hemodynamically stable. If concomitant diuretics and/or dietary sodium restriction are employed, reducing or temporarily withholding the dosing of diuretics and/or liberalizing dietary sodium intake for 2 to 3 days in advance can help minimize the risk of severe hypotension in patients who are able to tolerate such adjustments. ACE inhibitors should also be used cautiously in patients in whom excessive hypotension may have serious consequences, such as patients with coronary or cerebrovascular insufficiency. Patients at risk for excessive hypotension should initiate ACE inhibitor therapy under very close medical supervision, and followed closely for the first 2 weeks of treatment and whenever the dosage of ACE inhibitor or diuretic is increased.