HIV POSITIVE  Treatment
Protease Inhibitors & You


Drugs That May Interact With Ritonavir

The following is a list of medications that may potentially interact with ritonavir therapy.

Drug Category Drugs that may interact with ritonavir (Norvir)
Analgesics, Narcotics (pain relievers) alfentanil (Alfenta)
fentanyl (Sublimaze)
Antiarrhythmics (for the heart) disopyramide (Norpace)
lidocaine (Xylocaine, others)
Anticoagulants (for the blood) R-warfarin (Coumadin)
Anticonvulsants carbamazepine (Tegretol)
clonazepam (Klonopin)
ethosuximide (Zarontin)
Antihistamine loratadine (Claritin)
Antidepressants, other nefazodone (Serzone)
sertraline (Zoloft)
trazodone (Desyrel)
Antiemetics dronabinol (Marinol)
ondansetron (Zofran)
Antimycobacterial (anti-TB or anti-MAC) rifampin (Rifadin, others)
Antiparasitics quinidine (various)
Calcium Channel Blockers amlodipine (Norvasc)
diltiazem (Cardizem, Diltiazem)
felodipine (Plendil)
isradipine (DynaCirc)
nicardipine (Cardene)
nifedipine (Adalat, Procardia)
nimodipine (Nimotop)
nisoldipine (Sular)
verapamil (Calan, Isoptin)
Cancer chemotherapeutic agents etoposide (VePesid)
paclitaxel (Taxol)
tamoxifen (Nolvadex, others)
vinblastine (Velban)
vincristine (Oncovin)
Corticosteriods dexamethasone (Decadron, others)
prednisone (various)
Hypolipidemics lovastatin (Mevacor)
pravastatin (Pravachol)
Immunosuppressants cyclosporine (Sandimmune, Neoral)
tacrolimus (Prograf)

References: Norvir™ Prescribing information (March 1, 1996)


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