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Norvir (Ritonavir)

Prescription requiredOnly Available By Prescription
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What is Generic?

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What is a Generic Drug?

A generic drug is a copy of the brand-name drug with the same dosage, safety, strength, quality, consumption method, performance, and intended use. Before generics become available on the market, the generic company must prove it has the same active ingredients as the brand-name drug and works in the same way and in the same amount of time in the body.

The only differences between generics and their brand-name counterparts is that generics are less expensive and may look slightly different (eg. different shape or color), as trademarks laws prevent a generic from looking exactly like the brand-name drug.

Generics are less expensive because generic manufacturers don't have to invest large sums of money to develop a drug. When the brand-name patent expires, generic companies can manufacture a copy of the brand-name and sell it at a substantial discount.

Description

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.

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

Buy Norvir (Ritonavir) online from online Canadian Pharmacy | CanPharm.com

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.