What is Mexiletine used for?

This medication is used to treat irregular heart rhythms (arrhythmias) and maintain a normal heart rate. It is an antiarrhythmic. It blocks certain electrical signals in the heart to stabilize the heart rhythm. Mexiletine is also approved to treat non-dystrophic myotonia in adult patients whose muscles do not relax immediately after contraction resulting in muscle stiffness, pain, disability, and frequent falls.

What pharmaceutical form is Mexiletine available in?

Mexiletine: CAPSULE 150 mg/1 (ORAL)

What are the side effects of Mexiletine?

Heart - Palpitations, chest pain, increased heart rhythm and heart failure. Central Nervous System - Dizziness, lightheadedness, tremor, nervousness, coordination difficulties, headache, changes in sleep habits, weakness, tingling, numbness, fatigue, speech difficulties, confusion, depression and drowsiness. Liver - Increased liver enzymes and liver damage. Skin - Rash. Eye and ENT - Blurred vision, visual disturbances, ringing in ears, and uncontrolled movement of the

Can Mexiletine be used during pregnancy?

•Caution needed for patients with history of acute MI, sinus node dysfunction, conduction defects, slow heart rate, low blood pressure, heart failure, liver impairment, pregnancy. Monitor ECG and BP. Correct electrolyte imbalance prior to and during therapy. • It may cause dizziness, avoid driving a car or operate machines, or other unsafe tasks.

What precautions should be taken with Mexiletine?

•Caution needed for patients with history of acute MI, sinus node dysfunction, conduction defects, slow heart rate, low blood pressure, heart failure, liver impairment, pregnancy. Monitor ECG and BP. Correct electrolyte imbalance prior to and during therapy. • It may cause dizziness, avoid driving a car or operate machines, or other unsafe tasks.

What ATC class does Mexiletine belong to?

Mexiletine: ATC C01BB02. ATC is the WHO Anatomical Therapeutic Chemical classification — it groups drugs by organ system and pharmacological mechanism.

OTC

Mexiletine

150 mg/1, Capsule

INN: MEXILETINE HYDROCHLORIDE

Data updated: 2026-05-02

Available in:

🇨🇿🇩🇪🇬🇧🇵🇹🇸🇰

Form

CAPSULE

Dosage

150 mg/1

Route

ORAL

Storage

—

About This Product

User Reviews

Reviews reflect personal experiences and are not medical advice. Always consult your doctor.