What happens if I miss a dose (Viracept)?
Take the missed dose as soon as you remember. If it is almost time for your next dose, skip the missed dose and take the medicine at the next regularly scheduled time. Do not take extra medicine to make up the missed dose.
What happens if I overdose (Viracept)?
Seek emergency medical attention if you think you have used too much of this medicine. Symptoms of a nelfinavir overdose are not known.
What should I avoid while taking nelfinavir (Viracept)?
If you also take didanosine, take it 1 hour before or 2 hours after you take nelfinavir.
Avoid having unprotected sex or sharing needles, razors, or toothbrushes. Taking this medication will not prevent you from passing HIV to other people. Talk with your doctor about safe methods of preventing HIV transmission during sex. Sharing drug or medicine needles is never safe, even for a healthy person.
What other drugs will affect nelfinavir (Viracept)?
Before taking nelfinavir, tell your doctor if you are using any of the following drugs:
- fluticasone (Advair, Flonase, Flovent);
- itraconazole (Sporanox) or ketoconazole (Nizoral);
- lopinavir/ritonavir (Kaletra);
- methadone (Dolophine, Methadose);
- omeprazole (Prilosec);
- rifabutin (Mycobutin, or rifampin (Rifadin, Rimactane, Rifater);
- St. John's wort;
- antidepressants such as trazodone (Desyrel) and others;
- a calcium channel blocker such as amlodipine (Caduet, Lotrel, Norvasc), diltiazem (Tiazac, Cartia, Dilacor), felodipine (Plendil), nifedipine (Procardia, Adalat), or verapamil (Calan, Covera, Isoptin, Verelan);
- cholesterol-lowering medicine such as atorvastatin (Lipitor), lovastatin (Mevacor, Altocor), rosuvastatin (Crestor), or simvastatin (Zocor);
- drugs that weaken the immune system, such as cyclosporine (Gengraf, Neoral, Sandimmune), sirolimus (Rapamune), or tacrolimus (Prograf);
- insulin or diabetes medication you take by mouth;
- medicines to treat erectile dysfunction, such as sildenafil (Viagra), tadalafil (Cialis), or vardenafil (Levitra); or
- seizure medications such as carbamazepine (Carbatrol, Tegretol), phenobarbital (Luminal, Solfoton), or phenytoin (Dilantin).
This list is not complete and there are many other medicines that can interact with nelfinavir. Tell your doctor about all the prescription and over-the-counter medications you use. This includes vitamins, minerals, herbal products, and drugs prescribed by other doctors. Do not start using a new medication without telling your doctor. Keep a list with you of all the medicines you use and show this list to any doctor or other healthcare provider who treats you.
Where can I get more information?
Your pharmacist can provide more information about nelfinavir.
Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use this medication only for the indication prescribed.
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