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Can you take Viramune with Vorapaxar?

1 drug interaction and 11 additional warnings found for the following 2 drugs:

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Drug interactions

Moderate drug interactions

Moderate:

nevirapine vorapaxar

Applies to: Viramune (nevirapine) and vorapaxar

Nevirapine may decrease the blood levels and effects of vorapaxar.

Your doctor may be able to prescribe alternatives that do not interact, or you may need a dose adjustment or more frequent monitoring to safely use both medications.

It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.

Food/lifestyle interactions

No alcohol/food interactions were found. However, this does not necessarily mean no interactions exist. Always consult your healthcare provider.

Disease interactions

11 potential interactions Applies to: 9 conditions, including Peptic Ulcer, Hemodialysis, Liver Disease, Hemorrhagic Stroke, and Renal Dysfunction.

Bleeding Associated with Coagulation Defect

Major:

vorapaxar

Vorapaxar has a major potential interaction with Bleeding Associated with Coagulation Defect.

Vorapaxar increases the risk of bleeding and it is contraindicated in patients with active pathological bleeding such as intracranial hemorrhage or peptic ulcer. In other patients, consider the underlying risk of bleeding before initiating therapy. General risk factors include older age, low body weight, reduced renal or hepatic function, history of bleeding disorders, and use of certain concomitant medications. The use of warfarin and other anticoagulants should be avoided. Bleeding should be suspected in any patient who is hypotensive and has recently undergone coronary angiography, percutaneous coronary intervention (PCI), coronary artery bypass graft surgery (CABG), or any other surgical procedure.

Cerebral Thrombosis/Embolism

Major:

vorapaxar

Vorapaxar has a major potential interaction with Cerebral Thrombosis/Embolism.

Vorapaxar is contraindicated in patients with a history of stroke, transient ischemic attack (TIA), or intracranial bleeding. The risk of intracranial bleeding is higher in these patients.

Dermatitis, Drug-Induced

Major:

Viramune

The nevirapine in Viramune has a major potential interaction with Dermatitis, Drug-Induced.

Nevirapine can cause severe, life-threatening skin reactions such as Stevens-Johnson syndrome, toxic epidermal necrolysis, and hypersensitivity reactions characterized by rash, constitutional findings, and organ dysfunction including hepatic failure. Fatalities in association with these reactions have been reported. The first 6 weeks of therapy is the period of greatest risk, and intense monitoring is recommended during the first 18 weeks. In controlled clinical trials, Grade 3 and 4 rashes were reported during the first 6 weeks in 1.5 % of nevirapine-treated patients compared to 0.1% of placebo subjects. Patients who develop signs or symptoms of severe skin reactions or hypersensitivity reactions possibly related to nevirapine at any time during therapy must discontinue the drug and seek medical attention immediately. Because nevirapine-induced hepatitis and hepatic failure may be associated with hypersensitivity reactions, liver function tests should be performed in these patients as well as all patients who develop a rash within the first 18 weeks of treatment. Nevirapine should be permanently discontinued if clinical hepatitis or transaminase elevations combined with rash or other systemic symptoms occur, and should not be restarted after recovery. Nevirapine therapy should also not be restarted following severe skin or hypersensitivity reactions or a rash that is accompanied by fever, general malaise, fatigue, muscle or joint aches, blisters, oral lesions, conjunctivitis, facial edema, eosinophilia, granulocytopenia, lymphadenopathy, or renal dysfunction. During the initial 2-week lead-in period of 200 mg/day (4 mg/kg/day in pediatric patients), the dosage of nevirapine should not be increased if any rash occurs. Dose escalation should only be attempted after the rash resolves.

Hemodialysis

Moderate:

Viramune

The nevirapine in Viramune has a moderate potential interaction with Hemodialysis.

Nevirapine is partially removed by hemodialysis. In a pharmacokinetic study of nevirapine in patients with renal impairment, six subjects requiring hemodialysis exhibited a 44% reduction in nevirapine systemic exposure (AUC) over a one-week period. There was also evidence of accumulation of nevirapine hydroxy-metabolites in plasma in these patients; however, the clinical significance is unknown. A supplemental dose following each dialysis session is indicated for patients undergoing chronic hemodialysis.

Hemorrhagic Stroke

Major:

vorapaxar

Vorapaxar has a major potential interaction with Hemorrhagic Stroke.

Vorapaxar is contraindicated in patients with a history of stroke, transient ischemic attack (TIA), or intracranial bleeding. The risk of intracranial bleeding is higher in these patients.

Major:

vorapaxar

Vorapaxar has a major potential interaction with Hemorrhagic Stroke.

Vorapaxar increases the risk of bleeding and it is contraindicated in patients with active pathological bleeding such as intracranial hemorrhage or peptic ulcer. In other patients, consider the underlying risk of bleeding before initiating therapy. General risk factors include older age, low body weight, reduced renal or hepatic function, history of bleeding disorders, and use of certain concomitant medications. The use of warfarin and other anticoagulants should be avoided. Bleeding should be suspected in any patient who is hypotensive and has recently undergone coronary angiography, percutaneous coronary intervention (PCI), coronary artery bypass graft surgery (CABG), or any other surgical procedure.

History - Cerebrovascular Disease

Major:

vorapaxar

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

Vorapaxar is contraindicated in patients with a history of stroke, transient ischemic attack (TIA), or intracranial bleeding. The risk of intracranial bleeding is higher in these patients.

Liver Disease

Major:

Viramune

The nevirapine in Viramune has a major potential interaction with Liver Disease.

The use of nevirapine has been associated with severe, life-threatening, and fatal hepatotoxicity, particularly in the first 18 weeks of therapy. Fulminant and cholestatic hepatitis, hepatic necrosis, and hepatic failure have been reported. Nevirapine-induced hepatitis and hepatic failure may be associated with signs of hypersensitivity, which can include severe rash or rash accompanied by fever, general malaise, fatigue, muscle or joint aches, blisters, oral lesions, conjunctivitis, facial edema, eosinophilia, granulocytopenia, lymphadenopathy, or renal dysfunction. In controlled clinical trials, symptomatic hepatic events regardless of severity occurred on average in 4% (range 0% to 11%) of patients who received nevirapine and 1.2% of patients in control groups. The risk was greatest in the first 6 weeks of therapy and continued to be greater in the nevirapine groups compared to controls through 18 weeks of treatment. In general, the patients at greatest risk of hepatic events are women with high CD4 counts. During the first 6 weeks of treatment, women have a 3-fold higher risk than men for symptomatic, often rash-associated, hepatic events (5.8% vs. 2.2%). In a retrospective review, women with CD4 counts greater than 250 cells/mm3 had a 12-fold higher risk of symptomatic hepatic events compared to women with lower CD4 counts (11% vs. 0.9%). A 5-fold increased risk was observed in men with CD4 counts greater than 400 cells/mm3 compared to men with lower CD4 counts (6.3% vs. 1.2%). Additionally, coinfection with hepatitis B or C and/or increased liver function tests at the start of therapy are associated with a greater risk of later symptomatic events (6 weeks or more after starting nevirapine) and asymptomatic increases in AST or ALT. Therapy with nevirapine should be administered cautiously in patients with preexisting liver disease or liver function test abnormalities. Due to the risk of drug accumulation, nevirapine should not be administered to patients with severe hepatic impairment. All patients treated with nevirapine should undergo intensive clinical and laboratory monitoring (i.e., once a month or more) during the first 18 weeks of therapy, and regular monitoring thereafter. Liver function tests should be performed at baseline, prior to dose escalation, and at two weeks post-dose escalation. Patients should be instructed to discontinue nevirapine and seek medical attention promptly if signs and symptoms of hepatic injury or hypersensitivity develop such as fever, pruritus, rash, facial edema, anorexia, nausea, vomiting, fatigue, right upper quadrant pain, dark urine, and jaundice. Nevirapine should be permanently discontinued if clinical hepatitis or transaminase elevations combined with rash or other systemic symptoms occur, and should not be restarted after recovery. In some cases, hepatic injury progresses despite discontinuation of treatment.

Major:

vorapaxar

Vorapaxar has a major potential interaction with Liver Disease.

No dose adjustment is required in patients with renal dysfunction or mild to moderate hepatic impairment. Vorapaxar is not recommended in patients with severe hepatic impairment due to bleeding risk.

Peptic Ulcer

Major:

vorapaxar

Vorapaxar has a major potential interaction with Peptic Ulcer.

Vorapaxar increases the risk of bleeding and it is contraindicated in patients with active pathological bleeding such as intracranial hemorrhage or peptic ulcer. In other patients, consider the underlying risk of bleeding before initiating therapy. General risk factors include older age, low body weight, reduced renal or hepatic function, history of bleeding disorders, and use of certain concomitant medications. The use of warfarin and other anticoagulants should be avoided. Bleeding should be suspected in any patient who is hypotensive and has recently undergone coronary angiography, percutaneous coronary intervention (PCI), coronary artery bypass graft surgery (CABG), or any other surgical procedure.

Renal Dysfunction

Moderate:

Viramune

The nevirapine in Viramune has a moderate potential interaction with Renal Dysfunction.

Nevirapine metabolites are primarily eliminated by the kidney. The clinical significance of possible reduced metabolite clearance in renal impairment is uncertain. Therapy with nevirapine should be administered cautiously in patients with renal impairment.

More resources

Viramune

A total of 461 drugs are known to interact with Viramune.

vorapaxar

A total of 228 drugs are known to interact with vorapaxar.

Drug Interaction Classification

These classifications are only a guideline. The relevance of a particular drug interaction to a specific individual is difficult to determine. Always consult your healthcare provider before starting or stopping any medication.
Major Highly clinically significant. Avoid combinations; the risk of the interaction outweighs the benefit.
Moderate Moderately clinically significant. Usually avoid combinations; use it only under special circumstances.
Minor Minimally clinically significant. Minimize risk; assess risk and consider an alternative drug, take steps to circumvent the interaction risk and/or institute a monitoring plan.
Unknown No interaction information available.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.