Topamax
Designed to support the management of epilepsy and migraine, this therapeutic agent is indicated to alleviate seizure frequency and headache severity.
- Category
- Neurology
- Active ingredient
- Topiramate
- Supply
- Rx
- Route
- Oral use
- Form
- Film-coated tablet
- Strengths
- 25 · 50 · 100mg
Topamax details
- Conditions
- Epilepsy · Migraine Prophylaxis
- Therapeutic class
- Antiepileptic
- Pharmacological class
- Sulfamate-substituted Monosaccharide
- Contraindications
- hypersensitivity to topiramate
- Minor side effects
- paraesthesia; anorexia; weight loss; fatigue
- Moderate side effects
- memory impairment; speech disorders; depression
- Dosage forms
- Film-coated tablet
- Administration route
- Oral use
- Supply category
- Prescription only (specially controlled medicine)
- Manufacturer
- Janssen-Cilag
- Onset Time
- 2–3 hours
- Duration
- 20–30 hours
- Storage instructions
- Store below 25°C in a dry place.
- Drug interactions
- valproate; phenytoin; carbamazepine
- Age restrictions
- Not recommended for children under 2 years.
Precautions and warnings
maintain adequate hydration; monitor for mood changes; risk of angle-closure glaucoma
Serious side effects
nephrolithiasis, requires immediate medical attention; suicidal ideation, requires immediate medical attention; metabolic acidosis, requires immediate medical attention
Patient summary
Designed to support the management of epilepsy and migraine, this therapeutic agent is indicated to alleviate seizure frequency and headache severity.
Mechanism of action
Topiramate works through multiple mechanisms: it blocks voltage-gated sodium channels, enhances GABA activity (an inhibitory neurotransmitter), and antagonizes glutamate receptors to suppress neuronal hyperexcitability.
Pregnancy and breastfeeding
Pregnancy: Fetal risk identified; avoid. Breastfeeding: Excreted in milk; monitoring required.
Where this medicine is registered
- Singapore
- Hong Kong
- Thailand
- Malaysia
- Philippines
- Indonesia
- Taiwan
- South Korea
- Japan
- Australia
- New Zealand
- UAE
- South Africa
About Topamax
Topamax is a long-standing medication containing topiramate, used primarily for the management of epilepsy and the prophylaxis of migraines. Produced by Janssen-Cilag, this anticonvulsant is available as a tablet in strengths of 25, 50, and 100mg. Patients relying on consistent supplies of this widely recognised treatment benefit from its uniform formulation across multiple regions.
Buying Topamax online
Topamax is registered across 14 markets including Indonesia, Taiwan and South Korea, with availability also in Japan, the UAE and Singapore. For expats living abroad or individuals located far from a large city centre, accessing reliable maintenance medication can present challenges. Online delivery options provide a straightforward way to maintain consistent treatment, especially when local stock fluctuates or when searching for a familiar medical product within the region.