What is this medication for?
Nelfinavir is used in combination with other HIV medications to treat the infection caused by the human immunodeficiency virus (HIV). HIV is the virus responsible for acquired immune deficiency syndrome (AIDS).
Nelfinavir is one of a class of medications called protease inhibitors. Protease is an enzyme that is needed by HIV to reproduce. Nelfinavir blocks the action of protease. This medication does not cure AIDS and does not prevent it from being spread to others. It does slow further growth or reproduction of HIV when used in combination with other medications and seems to slow down the destruction of the immune system. This may help to delay the development of problems that are related to AIDS or HIV disease.
Your doctor may have suggested this medication for conditions other than those listed here. As well, some forms of this medication may not be used for all of the conditions discussed here. If you are not sure why you are taking this medication, speak to your doctor. Do not stop taking this medication without consulting your doctor.
Do not give this medication to anyone else, even if they have the same symptoms as you do. It can be harmful for people to take this medication if their doctor has not prescribed it.
What form(s) does this medication come in?
Viracept® is available as:
Some medications may have other generic brands available. Always ask your doctor or pharmacist about the safety of switching between brands of the same medication.
How should I use this medication?
The recommended adult dose of nelfinavir is 1,250 mg twice daily or 750 mg 3 times daily. Take this medication with food or meals. Tablets can be swallowed whole or dissolved in water and the solution swallowed. Rinse the glass and swallow the entire content immediately to ensure that you are taking the full dose of medication. Children's doses are based on age and body weight as calculated by the doctor.
The oral powder may be mixed with a small amount of water, milk, soy milk, formula, soy formula, or dietary supplement, and the entire amount consumed to ensure that the full dose of medication is taken.
Finish all this medication, even if you have started to feel better.
It is very important to take this medication on a regular basis as prescribed. If you miss a dose, take it as soon as possible. If it is almost time for your next dose, skip the missed dose and go back to your regular dosing schedule. Do not take a double dose to make up for a missed one.
Store this medication at room temperature, protect it from light and moisture, and keep it out of the reach of children.
Who should NOT take this medication?
Nelfinavir should not be taken by anyone who:
- is allergic to nelfinavir or to any of the ingredients of the medication
- is taking any of the following medications:
- antiarrhythmics (e.g., amiodarone, quinidine)
- antihistamines (e.g., terfenadine, astemizole)
- benzodiazepines (e.g., triazolam, midazolam)
- cisapride
- ergot derivatives (e.g., ergotamine, dihydroergotamine, ergonovine, methylergonovine)
- pimozide