Doravirine (By mouth)
Treats HIV infection in patients who have not received HIV-1 medicines before, or in patients to replace their current HIV-1 medicines who have met certain doctor's requirements. HIV causes AIDS. This medicine does not cure HIV or AIDS, but combinations of drugs may slow the progress of the disease.
PifeltroThere may be other brand names for this medicine.
When This Medicine Should Not Be Used:This medicine is not right for everyone. Do not use it if you had an allergic reaction to doravirine.
How to Use This Medicine:
- Your doctor will tell you how much medicine to use. Do not use more than directed.
- Do not stop using this medicine without checking first with your doctor. If you stop the medicine even briefly, the virus may become harder to treat. Contact your doctor or pharmacist when your supply is running low so you do not run out.
- Read and follow the patient instructions that come with this medicine. Talk to your doctor or pharmacist if you have any questions.
- Missed dose: Take a dose as soon as you remember. If it is almost time for your next dose, wait until then and take a regular dose. Do not take extra medicine to make up for a missed dose.
- Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light. Keep the bottle tightly closed. Keep the medicine in its original bottle.
Drugs and Foods to Avoid:
Ask your doctor or pharmacist before using any other medicine, including over-the-counter medicines, vitamins, and herbal products.
- Do not use this medicine together with carbamazepine, enzalutamide, mitotane, oxcarbazepine, phenobarbital, phenytoin, rifampin, rifapentine, or St John's wort.
- Some medicines can affect how doravirine works. Tell your doctor if you are also using efavirenz, etravirine, or nevirapine.
- If you are also using rifabutin, take doravirine 2 times a day, about 12 hours apart.
Warnings While Using This Medicine:
- Do not breastfeed. You can spread HIV or AIDS to your baby through your breast milk.
- Tell your doctor if you are pregnant, or if you have kidney disease or liver disease.
- Your immune system may get stronger when you start taking HIV medicines. This could cause a hidden infection in your body to become active. Tell your doctor right away if you notice any changes in your health.
- This medicine will not keep you from giving HIV to others. Always practice safe sex, even if your partner also has HIV. Do not share needles or other items that may have blood or body fluids on them.
- Your doctor will check your progress and the effects of this medicine at regular visits. Keep all appointments.
- Keep all medicine out of the reach of children. Never share your medicine with anyone.
Possible Side Effects While Using This Medicine:
Call your doctor right away if you notice any of these side effects:
- Allergic reaction: Itching or hives, swelling in your face or hands, swelling or tingling in your mouth or throat, chest tightness, trouble breathing
If you notice these less serious side effects, talk with your doctor:
- Tiredness or weakness
If you notice other side effects that you think are caused by this medicine, tell your doctor
Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088
Last Updated: 8/5/2022