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Norvir (Ritonavir)

Prescription medicineOnly Available By Prescription

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What if I find a lower price with another pharmacy?

We guarantee the lowest price on all of our prescription products. If you find your medications cheaper at any other recognized licensed mail order pharmacy, we will not only match their price, we will beat it by 25% of the difference. It is our 125% price match guarantee!

Example: If you find a product on Canada Drugs Direct for $50.00 and find the same product for $40.00 at another mail order pharmacy, we will provide you with a $12.50 discount, bringing your total to $37.50.

To get the discount please make sure to mention the price match to the customer service team when they call to collect payment for your order. Or call toll free at 1-888-904-8467 to place the order through the phone.

Terms & Conditions of Program

  • Guaranteed lowest price is only valid at the time of sale.
  • We will only match the current advertised price.
  • Products must be identical and in stock at the time of placing an order with a licensed mail order pharmacy. The must be a member of CIPA (Canadian International Pharmacy Association).
  • Products must be authentic in brand and size (same manufacturer, same country of manufacture, same pack size, same strength and same quantity).
  • Products must be new. We cannot match the price of any used, short expiry or expired product.
  • Price match can only be issued over the phone with our customer service team
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.


Norvir is an antiviral medication prescribed to treat infection by human immunodeficiency virus (HIV-1). Norvir should not be used by itself because it is not effective at stopping the replication of HIV-1. Norvir is used in combination with other antivirals to increase their effectiveness.

Fact Table






60% to 80%

Legal status


Chemical Name


Elimination half-life

3-5 hours

Dosage (Strength)



Consult Doctor



Protein binding


PubChem CID






ATC code






Routes of administration

By mouth


Take Norvir exactly as directed by your doctor.

The usual starting dose is 600 mg twice daily with meals. The dose may be modified if used with other antiviral medications.

The usual tablet size is Norvir 100 mg.


The active ingredient and name for Norvir generic is ritonavir.


Norvir has many drug-drug interactions with other medications. Tell your doctor about everything you are taking before you start it.

Common interactions may include:

  • Alfuzosin
  • Alprazolam
  • Amiodarone
  • Anti Hepacivirus combination products
  • Apalutamide
  • Aprepitant
  • Atovaquone
  • Avanafil
  • Bortezomib
  • Bosutinib
  • Budesonide
  • Clarithromycin
  • Clobetasone
  • Cobicistat
  • Darunavir
  • Disulfiram
  • Domperidone
  • Doxorubicin
  • Dronedarone
  • Eletriptan
  • Eplerenone
  • Ergot derivatives
  • Everolimus
  • Flecainide
  • Fluticasone
  • Fosamprenavir
  • Fosaprepitant
  • Ibrutinib
  • Ivabradine
  • Lovastatin
  • Lurasidone
  • Metronidazole
  • Midazolam
  • Pimozide
  • Propafenone
  • Quinidine
  • Quinine
  • Red yeast rice
  • Rifampin
  • Rivaroxaban
  • Salmeterol
  • Simvastatin
  • St. John's Wort
  • Tamsulosin
  • Triazolam
  • Vincristine
  • Voriconazole


Norvir can cause liver and pancreas toxicity in certain patients.

Your doctor should monitor for changes in heart rhythm before you start taking Norvir.

Tell your doctor if you have metabolic conditions that affect cholesterol or blood sugar.

Ask your doctor about precautions that apply to you before starting this medication.

Side Effects

Common adverse reactions with Norvir may include:

  • Abdominal pain
  • Arthralgia
  • Back pain
  • Cough
  • Diarrhea
  • Dizziness
  • Dysgeusia
  • Dyspepsia
  • Fatigue
  • Feeling hot
  • Flushing
  • Hypercholesterolemia
  • Increase gamma-glutamyl transferase
  • Increased creatinine phosphokinase
  • Increased serum triglycerides
  • Nausea
  • Paresthesia
  • Pruritus
  • Skin rash
  • Vomiting


Norvir [package insert]. Chicago, IL: AbbVie; 2017.

IMPORTANT NOTE: The above information is intended to increase awareness of health information and does not suggest treatment or diagnosis. This information is not a substitute for individual medical attention and should not be construed to indicate that use of the drug is safe, appropriate, or effective for you. See your health care professional for medical advice and treatment.

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