Before taking maraviroc,
tell your doctor and pharmacist if you are allergic to maraviroc, any other medications, or any of the ingredients in maraviroc tablets. Ask your pharmacist or check the Medication Guide for a list of the ingredients.
tell your doctor and pharmacist what other prescription and nonprescription medications, vitamins, and nutritional supplements you are taking or plan to take. Be sure to mention any of the following: antifungal medications such as ketoconazole (Nizoral) and itraconazole (Sporanox); clarithromycin (Biaxin, in Prevpac); medications to treat HIV or AIDS; medications to treat high blood pressure; certain medications to treat seizures such as carbamazepine (Carbatrol, Epitol, Tegretol), phenobarbital (Luminal, others), and phenytoin (Dilantin, Phenytek); nefazodone; rifampin (Rifadin, Rimactane, Rifamate, others); and telithromycin (Ketek). Your doctor may need to change the doses of your medications or monitor you carefully for side effects.
tell your doctor what herbal products you are taking, especially St. John's wort. You should not take St. John's wort during your treatment with maraviroc.
tell your doctor if you have or have ever had low blood pressure, chest pain, diabetes, a heart attack, high cholesterol or fats in the blood, or heart or kidney disease.
tell your doctor if you are pregnant, plan to become pregnant, or are breastfeeding. If you become pregnant while taking maraviroc, call your doctor. You should not breastfeed if you are infected with HIV or if you are taking maraviroc.
you should know that your body fat may increase or move to different areas of your body, such as your breasts and upper back, while you are taking maraviroc.
you should know that maraviroc may cause dizziness, lightheadedness, or fainting when you get up too quickly from a lying position. To help avoid this problem, get out of bed slowly, resting your feet on the floor for a few minutes before standing up. Do not drive a car or operate heavy machinery if you are dizzy while taking maraviroc.
you should know that while you are taking medications to treat HIV infection, your immune system may get stronger and begin to fight other infections that were already in your body. This may cause you to develop symptoms of those infections. If you have new or worsening symptoms after starting treatment with maraviroc, be sure to tell your doctor.