Informational only — Not medical advice. Always consult a licensed healthcare provider.

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Other brands with the same active ingredient

These brands contain the same active ingredient (Thiamine Hydrochloride). Same strength and form. Confirm the switch with your doctor or pharmacist.

Indications & Uses

Thiovit is used to treat the various manifestations of thiamine deficiency, including beriberi, Wernicke's encephalopathy, neuritis associated with pregnancy, and pellagra. It may also be given as a supplement to prevent deficiency in situations of low dietary intake, impaired gastrointestinal absorption of thiamine (as with alcohol use), or increased requirements, such as during pregnancy or when following a carbohydrate-rich diet.

Pharmacology

Thiamine Hydrochloride (Vitamin B1) is essential for the metabolism of carbohydrate and many amino acids. When Thiamine is deficient, the body's use of pyruvic acid and amino acids in tissue declines, causing pyruvic acid and lactic acid to build up and leading to Beri-beri. In adults, the tissues fully break down roughly 1 mg of Thiamine per day, which is approximately the minimum daily requirement. Thiamine is well absorbed from the gastrointestinal tract and distributed widely to most body tissues. Any amount beyond the body's needs is excreted in the urine, either unchanged or as metabolites.

Dosage Reference

Reference Information Only

Dosages shown are general references from official sources. Always consult your doctor or pharmacist for personalized dosing.

Adults:

Mild, chronic Thiamine deficiency is generally managed with up to 30 mg a day, taken as a single dose or split across the day. For more severe deficiency, daily doses of up to 300 mg have been used.

Side Effects

No serious side effects have been reported when Thiovit is taken by mouth, even at doses well above the usual therapeutic amount.

Cautions & Contraindications

Warnings & Precautions

A very serious allergic reaction to this vitamin is rare. However, seek immediate medical attention if you notice any symptoms of a serious allergic reaction, including rash, itching or swelling (especially of the face, tongue, or throat), severe dizziness, or trouble breathing.

Contraindications

Known hypersensitivity to thiamine.

Pregnancy & Breastfeeding

This medicine can safely be given to newborns, children, pregnant and breastfeeding women, and elderly patients.

⚠️ Talk to your doctor before taking any medicine during pregnancy or while breastfeeding.

Overdose

An overdose of Thiamine Hydrochloride does not cause toxicity.

⚠️ In an emergency call 999 or go to the nearest hospital emergency department.

Storage

Store Thiamine Hydrochloride below 30°C, and keep it away from light and moisture. Keep it out of the reach of children.

Drug Interactions

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Common questions about D Thia 100 mg

What is D Thia 100 mg Tablet?

D Thia 100 mg Tablet is a medicine that contains Thiamine Hydrochloride. It is made by Drug International Unani Ltd. It belongs to the Vitamin-B preparations group of medicines.

What is D Thia used for?

Thiovit is used to treat the various manifestations of thiamine deficiency, including beriberi, Wernicke's encephalopathy, neuritis associated with pregnancy, and pellagra. It may also be given as a supplement to prevent deficiency in situations of low dietary intake, impaired gastrointestinal absorption of thiamine (as with alcohol use), or increased requirements, such as during pregnancy or when following a carbohydrate-rich diet.

What are the side effects of D Thia?

No serious side effects have been reported when Thiovit is taken by mouth, even at doses well above the usual therapeutic amount.

Can I take D Thia during pregnancy or while breastfeeding?

This medicine can safely be given to newborns, children, pregnant and breastfeeding women, and elderly patients. Talk to your doctor before taking any medicine during pregnancy or while breastfeeding.

What happens if I take too much D Thia?

An overdose of Thiamine Hydrochloride does not cause toxicity. In an emergency call 999 or go to the nearest hospital emergency department.

How should I store D Thia?

Store Thiamine Hydrochloride below 30°C, and keep it away from light and moisture. Keep it out of the reach of children.

Can I take other medicines with D Thia?

Some medicines can interact with Thiamine Hydrochloride, for example: Pancuronium Bromide, Multivitamin & Multimineral [A-Z junior infusion preparation]. Tell your doctor or pharmacist about every medicine you take.

Do I need a prescription for D Thia?

D Thia is a prescription (Rx) medicine. Take it as your doctor advises.

Last updated: 15 Aug 2026