How does topiramate work?
Topiramate calms overactive nerve signals in the brain, helping to prevent seizures and reduce the frequency of migraines.
What is topiramate used to treat?
Topiramate is commonly prescribed for:
- Epilepsy (to prevent different types of seizures)
- Migraine prevention (to reduce the frequency and severity of migraines)
- Off-label uses (such as for certain mood disorders and weight loss in combination with other medications)
Who can take topiramate?
Topiramate is suitable for most adults and children over 2 years old, depending on the condition being treated.
Who might not be able to take topiramate?
Topiramate may not be suitable if you:
- Have kidney or liver disease
- Have a history of kidney stones
- Have metabolic acidosis (high acid levels in the blood)
- Are pregnant or planning to conceive (as it may harm the baby)
Can I take topiramate if I’m pregnant or breastfeeding?
Topiramate isn’t usually recommended during pregnancy, as it may increase the risk of birth defects. If you are pregnant or planning to conceive, speak to your doctor about safer alternatives.
What if I miss a dose?
If you forget a dose, take it as soon as you remember. If it’s close to your next dose, skip the missed one—do not take two doses at once.
How effective is topiramate?
Topiramate is highly effective for seizure control and migraine prevention when taken as prescribed, but it may take a few weeks to notice full benefits.
What should I do if I take too much?
Taking too much topiramate can cause confusion, dizziness, speech problems, or fainting. If you think you’ve taken too much, seek medical help immediately.
What dose of topiramate is usually taken?
- For epilepsy: 25mg to 400mg daily, divided into two doses
- For migraine prevention: 25mg to 100mg daily
Your doctor will determine the correct dose based on your condition.
Powered by pharmacies
With over 1,700 pharmacy partners across the UK, you can get the help you need, wherever you are based.
Our website and mobile app make it easy and convenient to manage your health needs and book services at a pharmacy nearby.
What are the side effects of topiramate?
Common side effects include:
- Tiredness or drowsiness
- Weight loss or loss of appetite
- Dizziness or confusion
- Tingling in hands or feet
- Difficulty concentrating
Serious side effects, such as vision problems, mood changes, or severe confusion, require urgent medical attention.
How should I take topiramate?
Topiramate is taken as tablets or capsules, usually once or twice daily. It should be swallowed whole with water.
When should topiramate be taken?
Topiramate should be taken at the same time each day, with or without food.
What are the brand names for topiramate?
Topiramate is available as a generic medicine, but some branded versions include:
- Topamax
- Topiragen
Final thoughts
Topiramate is an effective treatment for epilepsy and migraine prevention, but it should be taken exactly as prescribed. If side effects occur or symptoms worsen, speak to your doctor or pharmacist.