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Drug interactions between apalutamide and tipranavir

Results for the following 2 drugs:

Interactions between your drugs


tipranavir apalutamide

Applies to: tipranavir and apalutamide

Consumer information for this interaction is not currently available.

MONITOR: Coadministration with drugs that are inducers of CYP450 3A4 may decrease the plasma concentrations of protease inhibitors (PIs), which are primarily metabolized by the isoenzyme.

MANAGEMENT: Given the risk of reduced viral susceptibility and resistance development associated with subtherapeutic antiretroviral drug levels, protease inhibitors should be used cautiously with agents that induce CYP450 3A4, particularly if only one PI is used in the antiretroviral regimen. Coadministration of atazanavir without ritonavir and carbamazepine, phenobarbital, or phenytoin is not recommended. Antiretroviral response should be monitored more closely whenever a CYP450 3A4 inducer is added to or withdrawn from therapy, and the antiretroviral regimen adjusted as necessary.


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  2. "Product Information. Aptivus (tipranavir)." Boehringer-Ingelheim, Ridgefield, CT.
  3. Canadian Pharmacists Association "e-CPS. Available from: URL:"
  4. Durant J, Clevenbergh P, Garraffo R, Halfon P, Icard S, DelGiudice P, Montagne N, Schapiro JM, Dellamonica P "Importance of protease inhibitor plasma levels in HIV-infected patients treated with genotypic-guided therapy: pharmacological data from the Viradapt Study." Aids 14 (2000): 1333-9
  5. "Product Information. Fortovase (saquinavir)" Roche Laboratories, Nutley, NJ.
  6. "Product Information. Invirase (saquinavir)." Roche Laboratories, Nutley, NJ.
  7. "Product Information. Crixivan (indinavir)." Merck & Co, Inc, West Point, PA.
  8. Acosta EP, Henry K, Baken L, Page LM, Fletcher CV "Indinavir concentrations and antiviral effect." Pharmacotherapy 19 (1999): 708-12
  9. "Product Information. Lexiva (fosamprenavir)." GlaxoSmithKline, Research Triangle Park, NC.
  10. "Product Information. Agenerase (amprenavir)." Glaxo Wellcome, Research Triangle Pk, NC.
  11. Barry M, Gibbons S, Back D, Mulcahy F "Protease inhibitors in patients with HIV disease. Clinically important pharmacokinetic considerations." Clin Pharmacokinet 32 (1997): 194-209
  12. "Product Information. Prezista (darunavir)." Ortho Biotech Inc, Bridgewater, NJ.
  13. "Product Information. Viracept (nelfinavir)." Agouron Pharma Inc, La Jolla, CA.
  14. Hugen PWH, Burger DM, Brinkman K, terHofstede HJM, Schuurman R, Koopmans PP, Hekster YA "Carbamazepine-indinavir interaction causes antiretroviral therapy failure." Ann Pharmacother 34 (2000): 465-70
  15. Sommadossi JP "HIV protease inhibitors: pharmacologic and metabolic distinctions." AIDS 13 (1999): s29-40
  16. Liedtke MD, Lockhart SM, Rathbun RC "Anticonvulsant and antiretroviral interactions." Ann Pharmacother 38 (2004): 482-9
  17. Brooks J, Daily J, Schwamm L "Protease inhibitors and anticonvulsants." AIDS Clin Care 9 (1997): 87,90
View all 17 references

Drug and food interactions


tipranavir food

Applies to: tipranavir

Tipranavir should be taken with food. This helps to reduce the gastrointestinal side effects of ritonavir, which you must also take with tipranavir in order to achieve effective blood levels of the medication against HIV. Talk to your doctor or pharmacist if you have any questions on how to use these medications properly.

Switch to professional interaction data

Therapeutic duplication warnings

No warnings were found for your selected drugs.

Therapeutic duplication warnings are only returned when drugs within the same group exceed the recommended therapeutic duplication maximum.

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.