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Darunavir

Generic Name: darunavir (da ROON a veer)
Brand Name: Prezista

Medically reviewed by Drugs.com on Oct 23, 2018 – Written by Cerner Multum

What is darunavir?

See also: Atripla

Darunavir is an antiviral medicine used to treat HIV, the virus that can cause acquired immunodeficiency syndrome (AIDS). Darunavir is not a cure for HIV or AIDS.

Darunavir may also be used for purposes not listed in this medication guide.

Important Information

Tell your doctor about all your current medicines and any you start or stop using. Many drugs can interact, and some drugs should not be used together.

Darunavir can cause serious liver problems. Call your doctor if you have upper stomach pain, loss of appetite, tiredness, dark urine, clay-colored stools, or yellowing of your skin or eyes.

Stop taking darunavir and call your doctor right away if you have a severe skin reaction: fever, burning or redness in your eyes, mouth sores, or a skin rash that spreads and causes blistering and peeling.

Before taking this medicine

You should not take darunavir if you have severe liver disease.

Some medicines can cause unwanted or dangerous effects when used with darunavir. Your doctor may change your treatment plan if you also use:

Tell your doctor if you have ever had:

Tell your doctor if you are pregnant, and use your medications properly to control your infection. HIV can be passed to your baby if the virus is not controlled during pregnancy. Your name may be listed on a registry to track any effects of antiviral medicine on the baby.

Darunavir can make birth control pills less effective. Ask your doctor about using a non-hormonal birth control (condom, diaphragm with spermicide) to prevent pregnancy.

Women with HIV or AIDS should not breast-feed a baby. Even if your baby is born without HIV, the virus may be passed to the baby in your breast milk.

Darunavir and ritonavir should not be given to a child younger than 3 years old, or a child who weighs less than 22 pounds.

How should I take darunavir?

Follow all directions on your prescription label and read all medication guides or instruction sheets. Darunavir must be taken together with another medication called ritonavir. Use the medicine exactly as directed.

Darunavir works best if you take it with food. Take darunavir and ritonavir together at the same time every day.

Swallow the darunavir tablet whole and do not crush, chew, or break it.

Shake the oral suspension (liquid) before you measure a dose. Use the dosing syringe provided, or use a medicine dose-measuring device (not a kitchen spoon).

You will need frequent medical tests.

Use all HIV medications as directed and read all medication guides you receive. Do not change your dose or dosing schedule without your doctor's advice. Every person with HIV should remain under the care of a doctor.

Store at room temperature away from moisture and heat.

What happens if I miss a dose?

Take the medicine as soon as you can, but skip the missed dose if it is almost time for your next dose. Do not take two doses at one time.

Always take darunavir and ritonavir together.

Get your prescription refilled before you run out of medicine completely.

What happens if I overdose?

Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.

What should I avoid while taking darunavir?

Taking darunavir will not prevent your disease from spreading. Do not have unprotected sex or share razors or toothbrushes. Talk with your doctor about safe ways to prevent HIV transmission during sex. Sharing drug or medicine needles is never safe, even for a healthy person.

Darunavir side effects

Get emergency medical help if you have signs of an allergic reaction (hives, difficult breathing, swelling in your face or throat) or a severe skin reaction (fever, sore throat, burning eyes, skin pain, red or purple skin rash with blistering and peeling).

Call your doctor at once if you have:

  • the first sign of any skin rash, no matter how mild;

  • high blood sugar--increased thirst, increased urination, dry mouth, fruity breath odor; or

  • signs of liver or pancreas problems--loss of appetite, upper stomach pain (that may spread to your back), nausea or vomiting, fast heart rate, dark urine, jaundice (yellowing of the skin or eyes).

Darunavir affects your immune system, which may cause certain side effects (even weeks or months after you've taken this medicine). Tell your doctor if you have:

  • signs of a new infection--fever, night sweats, swollen glands, cold sores, cough, wheezing, diarrhea, weight loss;

  • trouble speaking or swallowing, problems with balance or eye movement, weakness or prickly feeling; or

  • swelling in your neck or throat (enlarged thyroid), menstrual changes, impotence.

Common side effects may include:

  • nausea, vomiting, diarrhea, stomach pain;

  • headache;

  • rash; or

  • changes in the shape or location of body fat (especially in your arms, legs, face, neck, breasts, and waist).

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

What other drugs will affect darunavir?

Sometimes it is not safe to use certain medications at the same time. Some drugs can affect your blood levels of other drugs you take, which may increase side effects or make the medications less effective.

If you also take didanosine (Videx), take your darunavir dose 2 hours before or 1 hour after you take didanosine.

Many drugs can affect darunavir, and some drugs should not be used at the same time. This includes prescription and over-the-counter medicines, vitamins, and herbal products. Not all possible interactions are listed here. Tell your doctor about all your current medicines and any medicine you start or stop using.

Further information

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.

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

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