Clamist Tablet

Clemastine (1mg)

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Clamist Tablet is an antiallergic medication used in the treatment of various allergic conditions. It provides relief from symptoms such runny nose, sneezing, itching, redness, swelling, and watery eyes.

Written By Dr. Sakshi Jain, MS, BDS,
Reviewed By Dr. Rajeev Sharma, MBA, MBBS,
Last updated on 06 Aug 2026 | 01:05 AM (IST)

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General Information

Contains

Clemastine (1mg)

Marketer

Wanbury Ltd

Storage

Store below 25°C

The content is shown in English

Product introduction

Clamist Tablet may be taken with or without food. Take it as per your doctor's advice. The dose and how often you take it depends on what you are taking it for. Your doctor will decide how much you need to improve your symptoms. You should take this medicine for as long as it is prescribed for you. In case, you have missed any doses, take the next dose as soon as you remember it. However, you should never take a double dose.

Drowsiness or dizziness is the most common side effect of this medicine. It may also cause dry mouth in some people. Avoid driving or attention-seeking activity if you experience drowsiness after taking this medicine. If it causes dry mouth, drink more water and have a sugar candy.

Before taking this medicine, let your doctor know if you have glaucoma or have any gastro-related issues or have asthma. Inform your doctor if you are pregnant, or breastfeeding. Your doctor should also know about all other medicines you are taking as many of these may make this medicine less effective or change the way it works. Generally, it is advised to avoid alcohol while on treatment.

Uses of Clamist Tablet

Treatment of Allergic conditions

Benefits of Clamist Tablet

Treatment of Allergic conditions
Clamist Tablet is used to treat many different inflammatory and allergic conditions. It helps treat runny nose, sneezing, itching, and watery eyes. It works by lowering your immune system’s response to these conditions and prevents the release of substances in the body that cause inflammation. It helps relieve symptoms such as swelling, pain, itching, and other allergic-type reactions. If you are not sure why you are being given this medicine, ask your doctor.

This medicine is given orally (by mouth). You should always take it as it has been prescribed for you. Do not stop taking it without your doctor’s advice. This can cause unpleasant withdrawal symptoms. Because this medicine weakens your immune system, you should avoid being near people who are ill or have infections.

Side effects of Clamist 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 Clamist

Dizziness
Drowsiness
Dryness in mouth

How to use Clamist 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. Clamist Tablet should be taken with or after food.

How Clamist Tablet works

Clamist Tablet is an antihistaminic medication. It blocks the action of certain chemical messengers that are responsible for inflammation, congestion, itching, and other allergic reactions.

Quick tips

Avoid driving or operating dangerous machinery as it may decrease alertness.
Avoid consuming alcohol when taking the Clamist Tablet, as it may cause excessive sleepiness or drowsiness.
Avoid driving or operating dangerous machinery as it may decrease alertness.
Avoid consuming alcohol when taking the Clamist Tablet, as it may cause excessive sleepiness or drowsiness.

Safety advice

Alcohol

UNSAFE

Do not drink alcohol while you are taking this medicine. Clamist Tablet may cause excessive drowsiness when taken with alcohol.

Pregnancy

CONSULT YOUR DOCTOR

The safety of Clamist Tablet 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

CAUTION

Clamist Tablet should be used with caution during breastfeeding. Breastfeeding should be held until the treatment of the mother is completed and the drug is eliminated from the body.
Larger doses or more prolonged use of Clamist Tablet may cause sleepiness and other effects in the baby.

Driving

UNSAFE

Clamist Tablet may decrease alertness, affect your vision, or make you feel sleepy and dizzy. Do not drive if these symptoms occur.
Caution is advised when driving or operating machinery.

Kidney

CONSULT YOUR DOCTOR

There is limited data available on the use of Clamist Tablet in patients with kidney disease. Please consult your doctor.

Liver

CONSULT YOUR DOCTOR

There is limited data available on the use of Clamist Tablet in patients with liver disease.

Interaction with drugs

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

Moderate

Tramadol (Injection Route)

Do not drive or do anything requiring concentration or alertness until you know how the medicines affect you.

Moderate

Clozapine (Oral Route)

Watch out for symptoms such as dry mouth, increased heart rate, urination difficulties, constipation, loss of appetite or nausea and consult your doctor if you experience them.

Moderate

Tramadol (Oral Route)

Do not drive or do anything requiring concentration or alertness until you know how the medicines affect you.

Moderate

Morphine (Oral Route)

Do not drive or do anything requiring concentration or alertness until you know how the medicines affect you.

Moderate

Codeine (Oral Route)

Do not drive or do anything requiring concentration or alertness until you know how the medicines affect you.

Frequently asked questions

What is Clamist Tablet and what is it used for?

Clamist Tablet is an anti-allergic that works by blocking the action of a chemical named histamine, which causes allergic symptoms.

Does Clamist Tablet make you feel sleepy?

Yes, this medicine has sedative properties and can make you feel sleepy. So, it is advisable to avoid driving or indulging in any sort of activity.

Can I drink alcohol while using Clamist Tablet?

No, it is not advisable to drink alcohol while taking this medicine since it can raise your risk of side effects, especially sleepiness. Talk to your doctor in case of any doubts.

How long does it take for Clamist Tablet to work?

You may start to feel the effects of this medicine in 2-3 hours. The full effects of this medication are usually felt after 5 to 7 hours of taking the dose.

What if I overdose on Clamist Tablet?

If you accidentally take Clamist Tablet in excess, you may develop symptoms like rapid heartbeat, dilated pupils (larger than normal size) or flushing, upset stomach, and dry mouth. Contact your doctor or hospital casualty department immediately.

What happens if I miss a dose of Clamist Tablet?

If you happen to miss a dose, take the missed dose as soon as you remember. Skip the missed dose if it is almost time for your next scheduled dose. Do not take extra medicine to make up for the missed dose. Discuss this with your doctor. In order to avoid missing a dose, use a calendar, pillbox, alarm clock, or cell phone alert to help you remember to take your medication. You may also ask a family member a friend to remind you or check in with you to be sure you are taking your medication.

Fact Box

Chemical Class

Diphenylmethanes

Habit Forming

Therapeutic Class

RESPIRATORY

Action Class

First-Generation H1 Antihistamines

Related lab tests

Absolute Eosinophil Count

Peripheral Smear Examination

Total IgE

References

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. 290-91.
Chaves RG, Lamounier JA. Breastfeeding and maternal medications. J Pediatr (Rio J). 2004;80(5 Suppl):S189-S198. [Accessed 01 Apr. 2019] (online) Available from:
Central Drugs Standard Control Organisation (CDSCO). [Accessed 01 Apr. 2019] (online) Available from:

User feedback

Patients taking Clamist Tablet

Once A Day

65%

Twice A Day

27%

Thrice A Day

What are you using Clamist Tablet for?

Allergic conditions

92%

Others

How much was the improvement?

Excellent

58%

Average

42%

What were the side-effects while using Clamist Tablet?

No Side Effect

57%

Sleepiness

29%

Drowsiness

14%

How do you take Clamist Tablet?

With food

67%

With or without food

33%

Please rate Clamist Tablet on price

Not Expensive

73%

Average

27%

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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: Wanbury Ltd
Address: Wanbury Limited , BSEL Techpark, 'B' Wing, 10th Floor, Sector 30-A, Opp. Vashi Railway Station, Vashi, Navi Mumbai - 400703, India.

Vendor Details

Country of origin: India

Lab tests offered by us

Why we need a prescription?

Home

Respiratory

Systemic Antihistamines

Clamist Tablet

Clamist Tablet

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General Information

Contains

Marketer

Storage

Product introduction

Uses of Clamist Tablet

Benefits of Clamist Tablet

Side effects of Clamist Tablet

How to use Clamist Tablet

How Clamist Tablet works

Quick tips

Safety advice

Alcohol

Pregnancy

Breast feeding

Driving

Kidney

Liver

Interaction with drugs

Tramadol (Injection Route)

Clozapine (Oral Route)

Tramadol (Oral Route)

Morphine (Oral Route)

Codeine (Oral Route)

Frequently asked questions

What is Clamist Tablet and what is it used for?

Does Clamist Tablet make you feel sleepy?

Can I drink alcohol while using Clamist Tablet?

How long does it take for Clamist Tablet to work?

What if I overdose on Clamist Tablet?

What happens if I miss a dose of Clamist Tablet?

Fact Box

Chemical Class

Habit Forming

Therapeutic Class

Action Class

Related lab tests

Absolute Eosinophil Count

Peripheral Smear Examination

Total IgE

References

User feedback

Patients taking Clamist Tablet

What are you using Clamist Tablet for?

How much was the improvement?

What were the side-effects while using Clamist Tablet?

How do you take Clamist Tablet?

Please rate Clamist Tablet on price

Want to know more

Have issue with the content

Disclaimer

Marketer details

Vendor Details

Lab tests offered by us

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