Ritomax 100mg Tablet

Ritonavir (100mg)

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Cold stored

Stored between 2-8°C

Ritomax 100mg Tablet is an antiviral or antiretroviral medicine. It is used in the treatment of HIV infection. It stops the virus from producing new viruses and clears up your infection.

Written By Dr. Sakshi Jain, MS, BDS,
Reviewed By Dr. Rajeev Sharma, MBA, MBBS,
Last updated on 06 May 2026 | 05:19 PM (IST)

₹733 MRP ₹811.2910% off

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General Information

Contains

Ritonavir (100mg)

Marketer

Alkem Laboratories Ltd

Storage

Store in a refrigerator (2 - 8°C). Do not freeze.

The content is shown in English

Product introduction

Ritomax 100mg Tablet should be taken with food, as this increases the absorption of the medicine into the body. You should take it in the dose and duration as advised by your doctor. Taking it at the same time every day will help you to remember to take it. Do not stop taking it until you have finished the complete course, even when you feel better. If you stop taking this medicine too early then infection may return or worsen.

Some people may experience taste changes, headache, nausea, and diarrhea as side effects of this medicine. Please consult your doctor if these side effects persist for a longer duration. Inform your doctor if you have diabetes as it can increase sugar levels in the blood.

Before using it, you should tell your doctor if you are allergic to any antibiotics or have any kidney or liver problems. You should also let your doctor know all other medicines you are taking as they may affect, or be affected by this medicine. Pregnant and breastfeeding mothers should consult their doctor before using it. Your doctor may monitor your liver function while taking this medication.

Uses of Ritomax Tablet

HIV infection

Benefits of Ritomax Tablet

HIV infection
Ritomax 100mg Tablet is used in the treatment of HIV infection as part of combination antiretroviral therapy. It helps enhance the effect of other HIV medicines, allowing better control of the virus, improving immune function, and reducing the risk of HIV-related complications.

Side effects of Ritomax Tablet

Most side effects do not require any medical attention and disappear as your body adjusts to the medicine. Consult your doctor if they persist or if you’re worried about them

Common side effects of Ritomax

Taste change
Nausea
Diarrhea
Paresthesia (tingling or pricking sensation)
Vomiting
Fatigue
Increased triglyceride level in blood
Joint pain

How to use Ritomax Tablet

Take this medicine in the dose and duration as advised by your doctor. Swallow it as a whole. Do not chew, crush or break it. Ritomax 100mg Tablet should be taken with or after food.

How Ritomax Tablet works

Ritomax 100mg Tablet is an anti-HIV medication. It works by interfering with an enzyme (protease), which is required by HIV-infected cells to make new viruses. This stops the production of new viruses.

Quick tips

Ritomax 100mg Tablet should be taken with food.
Do not skip any doses and finish the full course of treatment even if you feel better.
Do not take antacids an hour before or two hours after taking Ritomax 100mg Tablet.
It may cause dizziness or sleepiness. Do not drive or do anything that requires concentration until you know how it affects you.
Stop taking medications (prescribed for erectile dysfunction) like sildenafil or tadalafil while on treatment with this medicine.
Your doctor may check your liver function regularly. Inform your doctor if you develop abdominal pain, loss of appetite darkened urine or yellowing of the eyes or skin (jaundice).
Inform your doctor if you are pregnant, planning pregnancy or breastfeeding.
Ritomax 100mg Tablet should be taken with food.
Do not skip any doses and finish the full course of treatment even if you feel better.
Do not take antacids an hour before or two hours after taking Ritomax 100mg Tablet.
It may cause dizziness or sleepiness. Do not drive or do anything that requires concentration until you know how it affects you.
Stop taking medications (prescribed for erectile dysfunction) like sildenafil or tadalafil while on treatment with this medicine.
Your doctor may check your liver function regularly. Inform your doctor if you develop abdominal pain, loss of appetite darkened urine or yellowing of the eyes or skin (jaundice).
Inform your doctor if you are pregnant, planning pregnancy or breastfeeding.

Safety advice

Alcohol

CAUTION

Alcohol should be used with caution while taking Ritomax 100mg Tablet.

Pregnancy

CONSULT YOUR DOCTOR

Ritomax 100mg Tablet is not recommended during pregnancy as there is positive evidence of fetal risk based on animal studies. However, it may still be prescribed by a doctor in situations where the benefits outweigh the risks.

Breast feeding

CONSULT YOUR DOCTOR

Ritomax 100mg Tablet may be unsafe to use during breastfeeding. Limited human data suggests that the drug may pass into the breastmilk and harm the baby. It should be used only if the expected benefit outweighs the potential risk. Please consult your doctor.

Driving

CONSULT YOUR DOCTOR

It is not known whether Ritomax 100mg Tablet alters the ability to drive. Do not drive if you experience any symptoms that affect your ability to concentrate and react. Please consult your doctor.

Kidney

CAUTION

Ritomax 100mg Tablet should be used with caution in patients with kidney disease. Dose adjustment may be needed.

Liver

UNSAFE

Ritomax 100mg Tablet is unsafe to use in patients with liver disease and should be avoided.
Limited information is available on the use of Ritomax 100mg Tablet in these patients. No dose adjustment is recommended in patients with mild to moderate liver disease.

Interaction with drugs

Taking Ritomax with any of the following medicines can modify the effect of either of them and cause some undesirable side effects

Life-threatening

Ranolazine (Oral Route)

Do not consume Ranolazine with Ritonavir.

Life-threatening

Domperidone (Oral Route)

Do not consume Domperidone with Ritonavir.

Life-threatening

Simvastatin (Oral Route)

Do not consume Simvastatin with Ritonavir. Ritonavir may raise blood levels of Simvastatin.

Life-threatening

Quinidine (Oral Route)

Do not consume Ritonavir with Quinidine.

Life-threatening

Ivabradine (Oral Route)

Do not consume Ivabradine with Ritonavir. Ritonavir may raise blood levels of Ivabradine.

Frequently asked questions

What is Ritomax 100mg Tablet used for?

It is used along with other medication for treating human immunodeficiency virus (HIV) infection. It does not completely cure HIV or AIDS

Why is ritonavir used along with lopinavir?

Ritonavir is available with lopinavir as a fixed dose combination as it improves the availability of lopinavir which helps in increasing activity against HIV

Is ritonavir a protease inhibitor?

Ritonavir, a protease inhibitor

How does Ritomax 100mg Tablet work and what does it inhibit?

Ritomax 100mg Tablet belongs to a class of medication called protease inhibitors. It inhibits protease enzymes from breaking down proteins and thus prevents HIV from multiplying inside the body. It does not cure HIV completely but reduces the chances of getting acquired immunodeficiency syndrome (AIDS) and HIV related infections or cancer

Why is it used as a booster?

Ritonavir is used as a booster to increase the absorption of other protease inhibitors as well as prevent other protease inhibitors from being degraded.

Fact Box

Chemical Class

N- carbamoyl- alpha amino acid derivative

Habit Forming

Therapeutic Class

ANTI INFECTIVES

Action Class

Protease Inhibitors

Related lab tests

HIV 1 & 2, Ab Western Blot

HIV 1 And 2 Antibody - Chromatography

HIV 1 And 2 Antibody - ELISA

References

Flexner C. Antiretroviral Agents and Treatment of HIV Infection. In: Brunton LL, Chabner BA, Knollmann BC, editors. Goodman & Gilman’s: The Pharmacological Basis of Therapeutics. New York, New York: McGraw-Hill Medical; 2011. pp. 1648-650.
Safrin S. Antiviral Agents. In: Katzung BG, Masters SB, Trevor AJ, editors. Basic and Clinical Pharmacology. 11th ed. New Delhi, India: Tata McGraw Hill Education Private Limited; 2009. p. 865.
Briggs GG, Freeman RK, editors. A Reference Guide to Fetal and Neonatal Risk: Drugs in Pregnancy and Lactation. 10th ed. Philadelphia, PA: Wolters Kluwer Health; 2015. pp. 1223-225..
Ritonavir. North Chicago, Illinois: Abbott Laboratories; 1996 [revised Nov. 2012]. [Accessed 01 Apr. 2019] (online) Available from:
Ritonavir. Maidenhead, Berkshire: AbbVie Ltd.; Date of first authorisation: 26 August 1996 [revised 25 Oct. 2018]. [Accessed 22 Jan. 2019] (online) Available from:
Central Drugs Standard Control Organisation (CDSCO). [Accessed 01 Apr. 2019] (online) Available from:

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Disclaimer

Tata 1mg's sole intention is to ensure that its consumers get information that is expert-reviewed, accurate and trustworthy. However, the information contained herein should NOT be used as a substitute for the advice of a qualified physician. The information provided here is for informational purposes only. This may not cover everything about particular health conditions, lab tests, medicines, all possible side effects, drug interactions, warnings, alerts, etc. Please consult your doctor and discuss all your queries related to any disease or medicine. We intend to support, not replace, the doctor-patient relationship.

Marketer details

Name: Alkem Laboratories Ltd
Address: Alkem Laboratories Limited, Devashish Building, Alkem House, Senapati Bapat Road, Lower Parel, Mumbai - 400 013.

Vendor Details

Country of origin: India

Lab tests offered by us

Why we need a prescription?

Ritomax 100mg Tablet

Save more with additional offers

General Information

Contains

Marketer

Storage

Product introduction

Uses of Ritomax Tablet

Benefits of Ritomax Tablet

Side effects of Ritomax Tablet

How to use Ritomax Tablet

How Ritomax Tablet works

Quick tips

Safety advice

Alcohol

Pregnancy

Breast feeding

Driving

Kidney

Liver

Interaction with drugs

Ranolazine (Oral Route)

Domperidone (Oral Route)

Simvastatin (Oral Route)

Quinidine (Oral Route)

Ivabradine (Oral Route)

Frequently asked questions

What is Ritomax 100mg Tablet used for?

Why is ritonavir used along with lopinavir?

Is ritonavir a protease inhibitor?

How does Ritomax 100mg Tablet work and what does it inhibit?

Why is it used as a booster?

Fact Box

Chemical Class

Habit Forming

Therapeutic Class

Action Class

Related lab tests

HIV 1 & 2, Ab Western Blot

HIV 1 And 2 Antibody - Chromatography

HIV 1 And 2 Antibody - ELISA

References

Want to know more

Have issue with the content

Disclaimer

Marketer details

Vendor Details

Lab tests offered by us

Related/Popular tests