saquinavir - oral, Invirase (cont.)

DRUG INTERACTIONS: Drug interactions may change how your medications work or increase your risk for serious side effects. This document does not contain all possible drug interactions. Keep a list of all the products you use (including prescription/nonprescription drugs and herbal products) and share it with your doctor and pharmacist. Do not start, stop, or change the dosage of any medicines without your doctor's approval.Some products that may interact with this drug include: trazodone, certain benzodiazepines (midazolam, triazolam), ergot alkaloids (such as dihydroergotamine, ergonovine, ergotamine, methylergonovine), garlic supplements, ranolazine, rifamycins (such as rifampin, rifapentine), certain "statin" cholesterol drugs (simvastatin, lovastatin), other HIV medications (such as darunavir, tipranavir), St. John's wort.Many drugs besides saquinavir may affect the heart rhythm (QT prolongation), including quinidine, pimozide, propafenone, cisapride, amiodarone, dofetilide, flecainide, salmeterol, among others.Other medications can affect the removal of saquinavir from your body, which may affect how saquinavir works. Examples include other HIV drugs (such as indinavir, nelfinavir), among others.Saquinavir can slow down the removal of other medications from your body, which may affect how they work. Examples of affected drugs include lurasidone, drugs to treat erectile dysfunction-ED or pulmonary hypertension (such as sildenafil, vardenafil, tadalafil), among others.This medication may decrease the effectiveness of hormonal birth control such as pills, patch, or ring. This could cause pregnancy. Talk to your doctor about additional or alternative reliable forms of birth control, and always use an effective barrier method (latex or polyurethane condoms/dental dams) during all sexual activity to decrease the risk of spreading HIV to others. Tell your doctor if you have any new spotting or breakthrough bleeding, because these may be signs that your hormonal birth control is not working well.

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