Topiramate
Topiramate (Topamax)
What is Topiramate?
Topiramate (Topamax) is a prescription anticonvulsant used to treat epilepsy (partial-onset and primary generalized tonic-clonic seizures) and to prevent migraines in adults and adolescents. It is also used off-label for weight management — and is FDA-approved in combination with phentermine (Qsymia) for chronic weight management in obesity. Topiramate works through multiple mechanisms in the brain — blocking sodium channels, enhancing GABA activity, and blocking kainate/AMPA glutamate receptors — which reduce nerve excitability. Doses for epilepsy range from 200–400 mg/day; migraine prevention doses are typically 50–100 mg/day. A licensed provider can prescribe topiramate through Rx.com for epilepsy, migraine prevention, or weight management.
Side Effects
- Changes in vision, eye pain
- Fever, decreased sweating
- Confusion, problems with walking, clumsiness, dizziness, trouble talking, concentrating, or remembering
Warnings
- It is not safe to take this medicine during pregnancy. It could harm an unborn baby. Tell your doctor right away if you become pregnant.
- Tell your doctor if you are breastfeeding, or if you have kidney disease, liver disease, glaucoma, lung or breathing problems, bone problems (including osteoporosis, osteomalacia, osteopenia), or a history of depression or mood disorders. Tell your doctor if you are on a ketogenic diet (high in fat and low in carbohydrates).
- This medicine may cause the following problems:Eye pain or vision changes, including glaucomaChanges in body temperatureChanges in mood or behavior, including thoughts of suicideMetabolic acidosis (too much acid in the blood)Decreased bone densitySlow growth in childrenSerious skin reactions, including Stevens-Johnson syndrome, toxic epidermal necrolysisKidney stones
- This medicine may make you dizzy, drowsy, or tired. Do not drive or do anything else that could be dangerous until you know how this medicine affects you.
- Do not stop using this medicine suddenly. Your doctor will need to slowly decrease your dose before you stop it completely.
Prescription savings · · ·
- Changes in vision, eye pain
- Fever, decreased sweating
- Confusion, problems with walking, clumsiness, dizziness, trouble talking, concentrating, or remembering
- Numbness, tingling, or burning pain in your hands, arms, legs, or feet
- Allergic reaction: Itching or hives, swelling in your face or hands, swelling or tingling in your mouth or throat, chest tightness, trouble breathing
- Blistering, peeling, red skin rash
- Bloody or cloudy urine, painful urination, sudden lower back or stomach pain
- Bone fractures, pain, tenderness, or aching, pain in the back, ribs, arms, or legs, decrease in height
- Slow growth in children
- Unusual drowsiness, tiredness, or weakness
- Feeling agitated, depressed, nervous, or irritable, thoughts of hurting yourself or others, unusual mood or behavior
- Rapid, deep breathing, fast or uneven heartbeat
- It is not safe to take this medicine during pregnancy. It could harm an unborn baby. Tell your doctor right away if you become pregnant.
- Tell your doctor if you are breastfeeding, or if you have kidney disease, liver disease, glaucoma, lung or breathing problems, bone problems (including osteoporosis, osteomalacia, osteopenia), or a history of depression or mood disorders. Tell your doctor if you are on a ketogenic diet (high in fat and low in carbohydrates).
- This medicine may cause the following problems:Eye pain or vision changes, including glaucomaChanges in body temperatureChanges in mood or behavior, including thoughts of suicideMetabolic acidosis (too much acid in the blood)Decreased bone densitySlow growth in childrenSerious skin reactions, including Stevens-Johnson syndrome, toxic epidermal necrolysisKidney stones
- This medicine may make you dizzy, drowsy, or tired. Do not drive or do anything else that could be dangerous until you know how this medicine affects you.
- Do not stop using this medicine suddenly. Your doctor will need to slowly decrease your dose before you stop it completely.
- Your doctor will do lab tests at regular visits to check on the effects of this medicine. Keep all appointments.
- Keep all medicine out of the reach of children. Never share your medicine with anyone.
- Keep all medicine out of the reach of children. Never share your medicine with anyone.
- Vomiting, unusual drowsiness, tiredness, or weakness
Topiramate Coupons & Prices
Topiramate (Topamax)
What is Topiramate ?
Topiramate (Topamax) is a prescription anticonvulsant used to treat epilepsy (partial-onset and primary generalized tonic-clonic seizures) and to prevent migraines in adults and adolescents. It is also used off-label for weight management — and is FDA-approved in combination with phentermine (Qsymia) for chronic weight management in obesity. Topiramate works through multiple mechanisms in the brain — blocking sodium channels, enhancing GABA activity, and blocking kainate/AMPA glutamate receptors — which reduce nerve excitability. Doses for epilepsy range from 200–400 mg/day; migraine prevention doses are typically 50–100 mg/day. A licensed provider can prescribe topiramate through Rx.com for epilepsy, migraine prevention, or weight management.
What Is Topiramate?
Topiramate (brand name: Topamax) is a broad-spectrum anticonvulsant with FDA approvals for epilepsy and migraine prevention. It has gained additional attention as a component of Qsymia (topiramate ER + phentermine) for weight management, due to its observed effect of reducing appetite and promoting weight loss.
FDA-Approved Uses
- Epilepsy (partial-onset seizures) — monotherapy (ages ≥2) and adjunctive therapy
- Epilepsy (primary generalized tonic-clonic seizures) — adjunctive therapy
- Lennox-Gastaut syndrome — adjunctive seizure management
- Migraine prevention — in adults and adolescents ≥12 years (prophylaxis, not acute treatment)
- Chronic weight management — combined with phentermine in Qsymia
How Does Topiramate Work?
Topiramate has multiple mechanisms of action:
- Blocks voltage-sensitive sodium channels — reduces rapid neuronal firing
- Enhances GABA-A receptor activity — increases inhibitory neurotransmission
- Antagonizes AMPA and kainate glutamate receptors — reduces excitatory neurotransmission
- Inhibits carbonic anhydrase — mild diuretic effect
Dosage Overview
- Epilepsy (monotherapy, adults): Titrate to 400 mg/day in two divided doses over 6 weeks
- Migraine prevention (adults): 25 mg/day increasing weekly to target of 50 mg twice daily (100 mg/day)
- Children: 1–3 mg/kg/day for seizures (weight-based)
Titrate slowly — rapid increases cause more cognitive side effects. Do not stop topiramate abruptly in epilepsy patients.
Key Side Effects
The most common side effects are cognitive slowing (word-finding difficulties, memory issues), tingling in hands and feet (paresthesias), fatigue, weight loss, and kidney stones. Topiramate is a teratogen — women of childbearing age must use effective contraception.
Save on Topiramate
Generic topiramate is very affordable. With an Rx.com coupon, a 30-day supply can cost as little as $10–$25.
See a Provider for Epilepsy, Migraines, or Weight Loss
Connect with a licensed provider on Rx.com to determine if topiramate is the right treatment for you.
