Does fosamprenavir calcium interact with other medications?

Fosamprenavir calcium can interact with some medications and foods. You should never take fosamprenavir calcium with the following:
  • amiodarone
  • tricyclic antidepressants
  • statin anti-cholesterol drugs
  • bepridil, lidocaine
  • quinidine
If you are taking fosamprenavir calcium and the human immunodeficiency virus (HIV) medication ritonavir, you will need to avoid the heart medications flecainide and propafenone. Do not take rifampin or St. John's wort with fosamprenavir calcium, as this combination reduces the effectiveness of fosamprenavir calcium. You should also not take fosamprenavir calcium in combination with erectile dysfunction medication, as the risk for side effects is increased. Fosamprenavir calcium can interact with many other medications, altering effectiveness and increasing the risk of side effects.
Talk to your doctor about all medications you are using, including over-the-counter drugs, and let your doctor know if you discontinue use. You should also discuss the risks of drinking grapefruit juice while taking this medication.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.