Ritas 3 Capsule

Rivastigmine (3mg)

Genuine

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required

Ritas 3 Capsule is used to treat mild to moderate dementia in Alzheimer’s disease, a progressive illness that gradually affects memory and thinking. It is also used for dementia-associated Parkinson’s disease. It does not cure these illnesses but may help improve memory, awareness, and other symptoms.

Written By Dr. Subita Alagh, BDS,
Reviewed By Dr. Mekhala Chandra, MD, MBBS,
Last updated on 02 Feb 2026 | 11:11 AM (IST)

₹111 MRP ₹121.889% off

Gurgaon

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Rivamer 3 Capsule

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Ritas 3 Capsule

strip of 10 capsules

₹111

~~₹121.88~~

Same composition

Rivamer 3 Capsule

strip of 10 capsules

Rivastigmine (3mg)

by Sun Pharmaceutical Industries Ltd

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₹234

₹19.9 per capsule

₹199

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General Information

Contains

Rivastigmine (3mg)

Marketer

Tas Med India Pvt Ltd

Storage

Store below 30°C

The content is shown in English

Product introduction

Your doctor will explain how to take Ritas 3 Capsule. Follow the instructions carefully to get the most benefit. The dose may change from time to time to suit your individual needs. You may take it with food, preferably at night before going to bed. It can take up to a few weeks for symptoms to improve so keep taking your medicine regularly. You should not stop taking this medicine without consulting your doctor.

Some common side effects of this medicine include nausea, vomiting, weight loss, indigestion, and weakness. You may have side effects more often when you start your treatment or when your dose is increased. Usually, the side effects will slowly go away as your body gets used to the Ritas 3 Capsule. If they are severe or will not go away, you should contact your doctor.

Before using Ritas 3 Capsule, you should tell your doctor if you’ve ever had heart problems, stomach ulcers, epilepsy, or asthma. It may also affect, or be affected by, some other drugs you are using so let your doctor know what these are to be safe. During pregnancy, this medicine should only be taken if it is advised.

Uses of Ritas Capsule

Benefits of Ritas Capsule

Treatment of Dementia Associated with Parkinson's disease
Dementia in Parkinson’s disease refers to problems in memory and thinking that are advanced, interfering with daily activities and quality of life. Ritas 3 Capsule helps in managing these symptoms in a safe manner that can be used for a long term. This will make it easier for you to carry out your daily activities and improve your quality of life.

Side effects of Ritas Capsule

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 Ritas

Loss of appetite
Nausea
Vomiting
Indigestion
Fatigue
Diarrhea
Drowsiness
Insomnia (difficulty in sleeping)
Headache
Agitation
Anxiety
Restlessness
Dizziness
Tremors
Weight loss
Confusion

How to use Ritas Capsule

Take this medicine in the dose and duration as advised by your doctor. Ritas 3 Capsule should be taken with or after food.

How Ritas Capsule works

Memory loss in Alzheimer’s disease occurs due to disturbances of signal transmission in the brain. Ritas 3 Capsule is a cholinesterase inhibitor. It works by increasing the levels of a chemical messenger (acetylcholine) involved in transmmission of nerve signals. This improves memory and thinking.

All substitutes for Ritas 3 Capsule

For information purposes only. Consult a doctor before taking any medicine.

Rivamer 3 Capsule

by Sun Pharmaceutical Industries Ltd

₹23.4/capsule

111% costlier

Exelon 3mg Capsule

by Novartis India Ltd

₹55.79/capsule

403% costlier

Quick tips

You have been prescribed Ritas 3 Capsule to slow down the progression of Alzheimer's disease.
It does not cure Alzheimer's disease but may help improve brain function and ability to do daily activities.
It may cause diarrhea, nausea, and vomiting. Drink plenty of fluids to keep yourself hydrated while taking Ritas 3 Capsule.
Do not drive or do anything that requires mental focus until you know how Ritas 3 Capsule affects you.
Be cautious while taking this medicine if you suffer from peptic ulcer as it may cause vomiting, stomach bleeding, stomach pain, or discomfort.
Inform your doctor if you experience seizures or convulsions while taking this medicine.
You have been prescribed Ritas 3 Capsule to slow down the progression of Alzheimer's disease.
It does not cure Alzheimer's disease but may help improve brain function and ability to do daily activities.
It may cause diarrhea, nausea, and vomiting. Drink plenty of fluids to keep yourself hydrated while taking Ritas 3 Capsule.
Do not drive or do anything that requires mental focus until you know how Ritas 3 Capsule affects you.
Be cautious while taking this medicine if you suffer from peptic ulcer as it may cause vomiting, stomach bleeding, stomach pain, or discomfort.
Inform your doctor if you experience seizures or convulsions while taking this medicine.

Safety advice

Alcohol

CONSULT YOUR DOCTOR

It is not known whether it is safe to consume alcohol with Ritas 3 Capsule. Please consult your doctor.

Pregnancy

CONSULT YOUR DOCTOR

The safety of Ritas 3 Capsule during pregnancy has not been established. There are no adequate and well-controlled studies in pregnant women, and animal data on reproductive toxicity are insufficient. Your doctor will weigh the benefits and any potential risks before prescribing.

Breast feeding

CONSULT YOUR DOCTOR

Information regarding the use of Ritas 3 Capsule during breastfeeding is not available. Please consult your doctor.

Driving

UNSAFE

Ritas 3 Capsule may cause side effects that could affect your ability to drive.

Kidney

CONSULT YOUR DOCTOR

There is limited data available on the use of Ritas 3 Capsule in patients with kidney disease. Please consult your doctor.
However, inform your doctor if you have underlying kidney diseases as close monitoring is advised while you are taking this medicine.

Liver

CAUTION

Ritas 3 Capsule should be used with caution in patients with severe liver disease. Dose adjustment may be needed.
However, inform your doctor if you have an underlying liver disease as close monitoring is advised while you are taking this medicine.

Interaction with drugs

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

Moderate

Opipramol (Oral Route)

If concurrent use is essential, please consult your doctor. They may monitor your treatment and adjust the doses as per the observations.

Moderate

Amitriptyline (Oral Route)

If concurrent use is essential, please consult your doctor. They may monitor your treatment and adjust the doses as per the observations.

Moderate

Atropine (Injection Route)

If concurrent use is essential, your doctor may monitor your treatment and adjust the doses as per the observations.

Moderate

Bethanechol (Oral Route)

If concurrent use is essential, your doctor may monitor your treatment and adjust the doses as per the observations. Bethanechol may increase the effect of Rivastigmine.

Moderate

Carbachol (Injection Route)

If concurrent use is essential, your doctor may monitor your treatment and adjust the doses as per the observations. Carbachol may increase the effect of Rivastigmine.

Frequently asked questions

How long does Ritas 3 Capsule take to work?

Ritas 3 Capsule may take as long as 12 weeks to begin working. Response to the medicine differs from person to person. The clinical benefits of Ritas 3 Capsule should be assessed regularly. If after 12 weeks of treatment the symptoms do not improve, Ritas 3 Capsule should be stopped.

How should Ritas 3 Capsule be taken?

Always take the medicine as directed by your doctor. Usually, Ritas 3 Capsule is prescribed to be taken twice a day, in the morning and evening, with food. Swallow the whole capsule with water and do not open or crush the capsule. Check with your doctor or pharmacist if you are not sure.

Is it okay to take antacids while taking Ritas 3 Capsule?

Yes, antacids can be taken while taking Ritas 3 Capsule as they do not interfere with the working of Ritas 3 Capsule. Moreover, Ritas 3 Capsule may cause increased acid secretion in the stomach in some patients. Your doctor may prescribe an antacid to relieve this acidity.

What will happen if I take more than the recommended doses of Ritas 3 Capsule?

Taking more than the recommended doses of Ritas 3 Capsule may cause diarrhea, abdominal pain, dizziness, tremor, headache, sleepiness, hallucinations, and malaise. Higher doses may also cause confusion, increased sweating, and an increase in blood pressure. In case you take an overdose of Ritas 3 Capsule, seek immediate medical attention.

Does Ritas 3 Capsule cause drowsiness?

Yes, Ritas 3 Capsule can cause drowsiness or sleepiness, especially at the start of treatment or when increasing the dose. If you feel dizzy or sleepy, do not drive, use machines or perform any tasks that require your attention.

Can I stop taking Ritas 3 Capsule?

You should not stop or change the dose of Ritas 3 Capsule without consulting your doctor. However, if treatment is interrupted for more than three days, then do not take the medicine and consult your doctor. The doctor will re-initiate the treatment with a low dose twice a day. The dose can then be increased gradually as was done previously.

Can Ritas 3 Capsule cause hallucinations?

Yes, Ritas 3 Capsule can cause hallucinations. However, hallucinations are reported very rarely with the use of Ritas 3 Capsule, which means they occur in very few people. It may usually occur shortly after dose increase.

How long does Ritas 3 Capsule take to work?

Ritas 3 Capsule may take as long as 12 weeks to start showing its effect. The effect of the medicine on each individual may differ. The clinical benefits of Ritas 3 Capsule should be assessed regularly. If after 12 weeks of treatment the symptoms do not improve, stop the medication and consult your doctor.

How should Ritas 3 Capsule be taken?

Always take the medicine as directed by your doctor. Usually Ritas 3 Capsule is prescribed to be taken twice a day, in the morning and evening, with food. Swallow the whole capsule with water; do not open or crush the capsule. Check with your doctor or pharmacist if you are not sure.

Is it okay to take antacids while taking Ritas 3 Capsule?

What will happen if I take more than the recommended doses of Ritas 3 Capsule?

Taking more than the recommended doses of Ritas 3 Capsule may cause diarrhea, abdominal pain, dizziness, tremor, headache, sleepiness, hallucinations and malaise. An overdose may also cause confusion, increased sweating and increase in blood pressure. In case you take an overdose of Ritas 3 Capsule or if you experience any such symptoms, seek immediate medical attention.

Does Ritas 3 Capsule cause drowsiness?

Can I stop taking Ritas 3 Capsule?

You should not stop or change the dose of Ritas 3 Capsule without consulting your doctor. However, if treatment is interrupted for more than 3 days, do not continue the medicine without consulting your doctor. The doctor will re-initiate the treatment with a low dose twice a day. The dose can then be increased gradually as was done previously.

Can Ritas 3 Capsule cause hallucinations?

Fact Box

Chemical Class

Phenoxy compounds

Habit Forming

Therapeutic Class

NEURO CNS

Action Class

Cholinesterase Inhibitors

References

Stahl SM, editor. Rivastigmine. In: Stahl's Essential Pschopharmacology: Prescriber's Guide. 5th ed. New York, New York: Cambridge University Press; 2014. pp. 603-607.
Katzung BG. Special Aspects of Geriatric Pharmacology. 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. 1041.
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. p. 1229.
Rivastigmine tartrate. East Hanover, New Jersey: Novartis Pharmaceuticals Corporation; 2000 [revised Jan. 2015]. [Accessed 24 Jan. 2019] (online) Available from:
Rivastigmine. Camberley, Surrey: Sandoz Limited; 2014 [revised Aug. 2016]. [Accessed 22 Mar. 2019] (online) Available from:
Central Drugs Standard Control Organisation (CDSCO). [Accessed 22 Mar. 2019] (online) Available from:
Müller T. Rivastigmine in the treatment of patients with Alzheimer's disease. Neuropsychiatr Dis Treat. 2007 Apr;3(2):211-8. [Accessed 20 Feb. 2024] (online) Available from:
Rivastigmine. Summary of Product Characteristics. Novartis Pharma GmbH.; 2023. [Accessed 10 Sep. 2025] (online) Available from:
Rivastigmine. Nuremberg, Germany: Novartis Pharma GmbH; [Accessed 06 Nov. 2025] (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: Tas Med India Pvt Ltd
Address: Plot No. 45, N.T.M., Sector -26, Chandigarh

Vendor Details

Country of origin: India

Lab tests offered by us

Why we need a prescription?

Ritas 3 Capsule

Save more with additional offers

General Information

Contains

Marketer

Storage

Product introduction

Uses of Ritas Capsule

Benefits of Ritas Capsule

Side effects of Ritas Capsule

How to use Ritas Capsule

How Ritas Capsule works

All substitutes for Ritas 3 Capsule

Rivamer 3 Capsule

Exelon 3mg Capsule

Quick tips

Safety advice

Alcohol

Pregnancy

Breast feeding

Driving

Kidney

Liver

Interaction with drugs

Opipramol (Oral Route)

Amitriptyline (Oral Route)

Atropine (Injection Route)

Bethanechol (Oral Route)

Carbachol (Injection Route)

Frequently asked questions

How long does Ritas 3 Capsule take to work?

How should Ritas 3 Capsule be taken?

Is it okay to take antacids while taking Ritas 3 Capsule?

What will happen if I take more than the recommended doses of Ritas 3 Capsule?

Does Ritas 3 Capsule cause drowsiness?

Can I stop taking Ritas 3 Capsule?

Can Ritas 3 Capsule cause hallucinations?

How long does Ritas 3 Capsule take to work?

How should Ritas 3 Capsule be taken?

Is it okay to take antacids while taking Ritas 3 Capsule?

What will happen if I take more than the recommended doses of Ritas 3 Capsule?

Does Ritas 3 Capsule cause drowsiness?

Can I stop taking Ritas 3 Capsule?

Can Ritas 3 Capsule cause hallucinations?

Fact Box

Chemical Class

Habit Forming

Therapeutic Class

Action Class

References

Want to know more

Have issue with the content

Disclaimer

Marketer details

Vendor Details

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