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What is Ritonavir 100mg used for?

Ritonavir 100mg  is an antiviral medication used to treat human immunodeficiency virus (HIV) infection. It belongs to a class of drugs known as protease inhibitors. Ritonavir prevents the multiplication of HIV cells in your body. This medicine may also be used to treat other conditions as determined by your doctor.

What are the side effects of Ritonavir 100mg?

Like other medicines, Ritonavir 100mg can cause some side effects. If they do occur, the side effects of Ritonavir are most likely to be minor and temporary. However, some may be serious and may require the individual to inform the doctor or visit the nearest hospital immediately.

It is pertinent to note that side effects of Ritonavir cannot be anticipated. If any side effects of Ritonavir develop or change in intensity, the doctor should be informed as soon as possible.

Ritonavir can cause side effects such as headache, diarrhea, stomach pain, mild nausea, vomiting, heartburn, loss of appetite, tiredness, and changes in mood. This is not a complete list of all side effects. Do concur with your doctor and follow his directions completely when you are taking Ritonavir.

What is the recommended dosage of Ritonavir?

The dosage of Ritonavir prescribed to each patient will vary. Always follow your physician’s instructions and/or the directions on the prescription drug label.

Ritonavir must be taken with food.

What if you miss a dose of Ritonavir?

If your physician has instructed or directed you to take Ritonavir medication in a regular schedule and you have missed a dose of this medicine, take it as soon as you remember. However, if it is almost time for your next dose, then skip the missed dose and go back to your regular dosing schedule. Do not double the doses unless otherwise directed.

What if you overdose on Ritonavir?

Any medication taken in excess can have serious consequences. If you suspect an overdose of Ritonavir, seek medical attention immediately.

What other drugs could interact with Ritonavir 100mg?

  • Amiodarone
  • Atovaquone
  • Biaxin
  • Dronabinol
  • Flecainide
  • Maraviroc
  • Mycobutin
  • Propafenone
  • Quinidine

It may be noted that drugs other than those listed above may also interact with Ritonavir.

Usually drug interactions occur when it is taken with another drug or with food. Before you take a medication for a particular ailment, you should inform the health expert about intake of any other medications including non-prescription medications, over-the-counter medicines that may increase the effect of Ritonavir, and dietary supplements like vitamins, minerals and herbal, so that the doctor can warn you of any possible drug interactions.

Ritonavir can interact with steroid medications, antibiotics, antidepressants, diabetes medications, and blood pressure medications.

Do let your doctor know if you smoke, consume alcohol or caffeinated drinks, or use illegal drugs as these may interfere with the action of your medication. Make sure to inform your doctor of any medical conditions you may have, or any family history of medical problems. Do not start or stop using any medicine without consulting your doctor.

What are the questions to ask your doctor before taking Ritonavir 100mg tablet?

Is it possible for me to take Ritonavir with other drugs?
Should certain beverages, foods and other products be avoided when I take Ritonavir?
What are the possible drug interactions of Ritonavir?
How will Ritonavir work in my body?
How should Ritonavir be taken?
How to reduce the risk of Ritonavir drug interactions and side effects?


The health and medical information provided here is intended to supplement and not substitute for the expertise and judgment of your physician, pharmacists or other health care professional. It should not be understood to indicate that the use of Ritonavir is safe, appropriate or effective for you. Always consult your health care professional before using this, or any other, drug.


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