Ritonavir is an antiretroviral substance that inhibits an enzyme called protease that prevents replication of the HIV virus. Therefore, although this drug does not cure HIV, it is used to delay the development of the virus in the body, thus preventing the onset of AIDS.
This substance is known commercially as Norvir and is generally provided free of charge to people living with HIV.
- The recommended dose of ritonavir is 600 mg (6 tablets) twice daily.
- As a general rule.
- Treatment begins with lower doses and can be gradually increased up to the full dose.
Therefore, ritonavir should be initiated at a dose of at least 300 mg (3 tablets) twice daily for 3 days, in 100 mg increments, until the maximum dose of 600 mg (6 tablets) is reached, twice daily for a period of no more than 14 days. The maximum daily dose is 1200 mg per day.
Ritonavir is usually used with other HIV medicines because it increases its effects. Learn more about HIV and AIDS.
Dosages may vary by person, so it is very important to follow all the instructions of the doctor.
Some of the side effects that can occur with prolonged use of ritonavir include changes in blood tests, hives, headaches, dizziness, insomnia, anxiety, confusion, blurred vision, changes in blood pressure, abdominal pain, nausea, diarrhea, excess gas, acne. and joint pain.
In addition, ritonavir also reduces the absorption of certain oral contraceptives and, therefore, if you are being treated with this medicine, it is very important that you use another method of contraception to avoid a possible unwanted pregnancy.
Ritonavir is contraindicated in people with hypersensitivity to one of the components of the formula. In addition, ritonavir may also interact with the effect of various types of medications and therefore its use should always be guided and evaluated by a doctor.