Prescription requiredAntiepileptic, Antimigraine (prophylaxis)

Topaz 100MG Tab — Side Effects & Warnings

Known side effects of Topaz 100MG Tab include Dizziness, sleepiness, fatigue, tingling/numbness (paresthesia), loss of appetite, weight loss, nausea, taste changes, difficulty with concentration/memory, slowed thinking, mood changes. Not everyone experiences these side effects.

Medically reviewed by Dr. Balaji Krishnan, MBBS · Updated June 2026

Common Side Effects

Dizziness
sleepiness
fatigue
tingling/numbness (paresthesia)
loss of appetite
weight loss
nausea
taste changes
difficulty with concentration/memory
slowed thinking
mood changes

This is not an exhaustive list. Consult your doctor if you notice any unusual symptoms.

Important Warnings

Prescription-only antiepileptic. May cause drowsiness/dizziness—avoid driving or operating machinery until effects are known. Risk of metabolic acidosis, kidney stones, decreased sweating/heat intolerance (especially in children), and acute myopia/secondary angle-closure glaucoma—seek urgent care for eye pain/vision changes. Can cause mood/behavior changes and suicidal thoughts—monitor. Dose adjustment may be needed in kidney disease; caution in liver disease. Do not stop abruptly. May reduce effectiveness of hormonal contraception at higher doses—use additional contraception as advised.

Drug Interactions

Topaz 100MG Tab may interact with the following:

Oral contraceptives (reduced efficacy
especially ethinyl estradiol at higher doses)
valproate (hyperammonemia/encephalopathy risk)
other CNS depressants/alcohol (increased sedation)
carbonic anhydrase inhibitors like acetazolamide (increased kidney stone/metabolic acidosis risk)
phenytoin/carbamazepine (may alter topiramate levels)
metformin (metabolic acidosis risk)
lithium (level changes)

Always tell your doctor about all medicines you are taking, including over-the-counter drugs and supplements.

Pregnancy Safety

Use with caution / Consult doctor (may cause fetal harm; effective contraception advised)

Alcohol Interaction

Avoid (may increase dizziness, drowsiness and impaired coordination)

Habit Forming

Storage

Store below 25°C in a dry place, protected from moisture and light. Keep out of reach of children.

Topaz 100MG Tab — Safety Summary

Composition: Topiramate 100 mg
Prescription: Required (Rx)
Pregnancy: Use with caution / Consult doctor (may cause fetal harm; effective contraception advised)
Alcohol: Avoid (may increase dizziness, drowsiness and impaired coordination)
Habit forming: No

Topaz 100MG Tab — Safety FAQs

What should I do if I experience side effects?

Mild side effects often resolve on their own. If side effects are severe or persistent, stop the medicine and consult your doctor immediately.

Are all listed side effects common?

No. Some side effects are common while others are rare. Not everyone experiences side effects. Consult your doctor if you are concerned.

Can I take this medicine with other drugs?

Some medicines interact with each other. Always inform your doctor about all medicines you are currently taking.

When should I seek emergency help?

Seek immediate medical attention if you experience severe allergic reactions (difficulty breathing, swelling of face/throat), chest pain, or any life-threatening symptoms.

Get help from a doctor

Consult a doctor

Discuss side effects with a qualified doctor online.

View all medicines

Full product details for Topaz 100MG Tab.

Lab tests

Book tests to monitor your health while on medication.

Sick leave certificate

Unwell and need rest? A doctor can issue a leave certificate online, from ₹499.

Safety disclaimer

This information is for educational purposes only and is not a substitute for professional medical advice. If you experience severe side effects, seek medical attention immediately.

Topaz 100MG Tab — Side Effects & Warnings

Medically reviewed by Dr. Balaji Krishnan, MBBS · Updated June 2026