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Fact Table
| Fact Table | |
|---|---|
| Formula | C37H48N6O5S2 |
| License | FDA approved |
| Bioavailability | ~75% |
| Legal status | Prescription Drug |
| Chemical Name | Ritonavir |
| Elimination half-life | 3–5 hours |
| Dosage (Strength) | 100mg tablets, 100mg capsules, 80mg/mL oral solution |
| Pregnancy | Consult Doctor (Category B) |
| Brands | Norvir |
| Protein binding | ~98-99% |
| PubChem CID | 392622 |
| MedlinePlus | a696029 |
| ChEBI | 45409 |
| ATC code | J05AE03 |
| DrugBank | DB00503 |
| KEGG | D00432 |
| Routes of administration | By mouth |
Norvir is an HIV treatment medication that is used to suppress the HIV infection and allow for better treatment outcomes plus less chance that the infection can develop into AIDS. Ritonavir is a protease inhibitor drug that is formulated to lower the amount of HIV virus so that the immune system is better able to function and combat the viral infection. It may also help prevent other secondary infections and the lower chance of the patient getting cancer while having HIV. You can buy Norvir with a prescription here at Canpharm.
Directions
Standard dosage for the Norvir 100mg tablet is to take 1 – 2x daily as directed in your prescription and taken with food
Ingredients
The active ingredient in Norvir is Ritonavir
Cautions
Let your doctor know of any history of diabetes, heart problems, hemophilia, high triglyceride levels, liver dysfunction, or pancreatitis before starting on Norvir for HIV
Use of this medication may increase your blood glucose levels
Use of this medication may make you dizzy or drowsy and it may be advisable to avoid driving or using machinery while taking generic Norvir
Women who are pregnant or breastfeeding should only use this medication if their doctor approves it
Interactions
Negative drug interactions may occur between Norvir and other Rx or OTC medications, including alfuzosin, amiodarone, flecainide, propafenone, quinidine, voriconazole, midazolam, triazolam, rivaroxaban, warfarin, avanafil, sildenafil, dihydroergotamine, ergonovine, ergotamine, methylergonovine, lurasidone, meperidine, pimozide, ranolazine, salmeterol, simvastatin and lovastatin. Let your doctor know of all medications you are currently taking before getting a prescription and proceeding to buy Norvir online.
Side Effects
Norvir side effects may occur, and some users may experience diarrhea, vomiting, nausea, heartburn, stomach pain, dizziness, weakness, taste changes, or a tingling sensation in their mouth. If side effects are seen you may want to discontinue use and meet with a doctor again to discuss HIV treatment medication alternatives.
Frequently Asked Questions about Norvir (Ritonavir)
What is Norvir used for?
Norvir (ritonavir) is primarily used to treat HIV infection. It acts as a booster to increase the effectiveness of other antiretroviral medications by enhancing their concentration in the blood.
What are the side effects of Norvir?
Common side effects include:
- Nausea and vomiting
- Diarrhea
- Fatigue
- Abdominal pain
- Changes in taste
Serious side effects may include liver toxicity, pancreatitis, and severe allergic reactions.
Who should not take Norvir?
Norvir should not be taken by individuals with:
- Severe liver disease
- Known hypersensitivity to ritonavir or its ingredients
- Those taking contraindicated medications, such as certain sedatives, antiarrhythmics, or ergot derivatives, due to dangerous drug interactions.
How does Norvir work?
Norvir inhibits the HIV protease enzyme, preventing the virus from maturing and replicating. It also boosts the levels of other protease inhibitors by inhibiting liver enzymes that break them down.
Can Norvir be used during pregnancy?
Yes, Norvir is considered safe during pregnancy but should only be used under medical supervision to ensure proper dosing and minimize risks.
How should Norvir be stored?
- Tablets: Store at room temperature (below 30°C or 86°F).
- Oral solution: Store at room temperature and avoid refrigeration, as it may thicken. Keep the container tightly closed.
What should I avoid while taking Norvir?
Avoid:
- Consuming grapefruit or grapefruit juice, which can alter drug levels.
- Drinking alcohol while taking the oral solution due to its alcohol content.
- Taking other medications without consulting a healthcare provider due to potential interactions.
How is Norvir typically taken?
Norvir is taken orally with food to improve absorption and reduce gastrointestinal side effects. Dosage depends on the treatment regimen and is usually prescribed as part of combination therapy.
Does Norvir interact with other medications?
Yes, Norvir has significant interactions with many drugs, including:
- Blood thinners
- Certain sedatives and antiarrhythmics
- Ergot derivatives
Always inform your doctor about all medications and supplements you are taking.
What should I do if I miss a dose of Norvir?
If you miss a dose, take it as soon as you remember unless it’s almost time for the next dose. Do not double up on doses to compensate for a missed one. Follow your doctor’s instructions for missed doses.
