This drug is used to treat partial seizures (focal seizures).

IUPAC name: (3R)-1-[4,4-bis(3-methyl thiophene-2-yl)but-3-enyl]piperidine-3-carboxylic acid

Drug class: Anticonvulsant/ Antiepileptic drug

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Route of administration: Oral

Is it a drug that needs a prescription? YES

Is it an OTC drug? NO

Mechanism of action

This antiepileptic medication works by boosting GABA (gamma-aminobutyric acid), a chemical messenger (neurotransmitter) that relaxes the brain and aids in the stabilization of abnormal nerve impulse activity in the brain that causes seizures.

 Side effects

It may cause dizziness, drowsiness, nausea, nervousness, weakness, unusual fatigue, stomach pain, disorientation, lightheadedness, headache, unusual thoughts, rash or itching.


Before using this medication, take the following precautions and notify your doctor:

If you are allergic to it, or to other anticonvulsant drugs, or if you have other allergies,

If you are taking any other medication (prescribed, non-prescribed, or herbal products),

When you have a history of vision problems, liver disease, depression, unusual negative thoughts, status epilepticus,

If you’ve had any type of surgery,

Limit your alcohol usage while taking tiagabine since it increases your chances of developing vision problems, dizziness, or drowsiness. It may also cause a loss of alertness.

This drug’s adverse effects are more severe in older adults.

Consult your doctor if you are pregnant or breastfeeding.

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