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Nelfinavir

Written By Dr. Swati MishraReviewed By Dr. Rajeev Sharma
Last updated 25 Nov 2025 | 09:34 AM (UTC)

Nelfinavir Uses

Nelfinavir is used in the treatment of HIV infection.

How Nelfinavir works

Nelfinavir is an anti-HIV medication. It works by interfering with an enzyme (protease), which is required by HIV-infected cells to make new viruses. This stops the production of new viruses.

Common side effects of Nelfinavir

Rash, Nausea, Abdominal pain, Diarrhea, Flatulence, Decreased appetite
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Expert advice for Nelfinavir

  • Nelfinavir should be taken with food.
  • Do not skip any doses and finish the full course of treatment even if you feel better.
  • It may cause dizziness or sleepiness. Do not drive or do anything that requires concentration until you know how it affects you.
  • Your doctor may check your liver function regularly. Inform your doctor if you develop abdominal pain, loss of appetite darkened urine or yellowing of the eyes or skin (jaundice).
  • Inform your doctor if you are pregnant, planning pregnancy or breastfeeding.
  • Nelfinavir should be taken with food.
  • Do not skip any doses and finish the full course of treatment even if you feel better.
  • Do not take antacids an hour before or two hours after taking Nelfinavir.
  • It may cause dizziness or sleepiness. Do not drive or do anything that requires concentration until you know how it affects you.
  • Stop taking medications (prescribed for erectile dysfunction) like sildenafil or tadalafil while on treatment with this medicine.
  • Your doctor may check your liver function regularly. Inform your doctor if you develop abdominal pain, loss of appetite darkened urine or yellowing of the eyes or skin (jaundice).
  • Inform your doctor if you are pregnant, planning pregnancy or breastfeeding.

Frequently asked questions for Nelfinavir

Nelfinavir is a protease inhibitor used for the treatment for human immunodeficiency virus (HIV) infection, along with other medications (other antiretroviral agents).