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Mexohar 50mg Capsule

Prescription Required

Salt Composition : Mexiletine

Manufacturer : CIPLA LTD

Origin of Medicine : India

MRP: 907.5
Price :817
You Save :91 (10%)

30 Capsule(s) In A Bottle

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Introduction to Mexohar 50mg Capsule

Mexohar 50mg Capsule is an antiarrhythmic medication containing the active ingredient Mexiletine. This medication is used to treat irregular heart rhythms, also known as arrhythmias. It also helps to treat the symptoms of myotonia in adults who have non-dystrophic myotonic disorders (conditions that result from genetic defects that affect muscle function). These disorders are mainly caused by muscle-related symptoms rather than being caused by a specific type of muscular dystrophy. Myotonia is a medical term that refers to a condition where muscles have difficulty relaxing after they've been used. This can lead to stiffness or delayed relaxation of muscles.

If you have had a heart attack (myocardial infarction), this drug is contraindicated for you. Before beginning treatment with Mexohar 50mg Capsule, inform your doctor if you have any heart, liver, kidney problems, low or high potassium blood levels, low magnesium blood levels and epilepsy. This drug can impact the nervous system and may need to be used cautiously in individuals with seizure disorders. If you have an allergy to any local anesthetics, which are a class of medications that numb a specific area of the body, you should not take this medicine. The use of this drug is not advised for children and adults under 18 years of age.

While taking this medicine, reducing your caffeine intake by half is recommended. This is because Mexohar 50mg Capsule can increase the levels of caffeine in your blood. High levels of caffeine can lead to side effects like jitteriness, increased heart rate, and other adverse effects. By reducing your caffeine intake, you can help prevent these interactions. Inform your physician if you are pregnant, suspect pregnancy, or planning to become pregnant. This drug can pass into breast milk. Therefore, breastfeeding is not recommended while undergoing treatment with this drug.

Uses of Mexohar 50mg Capsule

  • Treatment of arrhythmias
  • Non-dystrophic myotonic disorders

Therapeutic Effects of Mexohar 50mg Capsule

Mexohar 50mg Capsule works by blocking sodium channels in heart and nerve cells. This action helps prevent certain signals in the heart that could lead to an irregular heartbeat. As a result, this medication restores a normal heart rhythm, promoting a regular and steady heartbeat.

Interaction of Mexohar 50mg Capsule with other drugs

Inform your physician about all your medicines, including prescription, over-the-counter, nutritional or vitamin supplements, and herbal products. Certain medications such as quinidine, procainamide, disopyramide, ajmaline, encainide, flecainide, propafenone, moricizine, and amiodarone may interact with Mexohar 50mg Capsule and reduce effectiveness by causing undesirable side effects.

More Information about Mexohar 50mg Capsule

  • Store Mexohar 50mg Capsule below 25°C.
  • Protect from light and moisture.

How to consume Mexohar 50mg Capsule

Take the Mexohar 50mg Capsule as advised by your physician. Do not crush, chew, or open the medicine. Your physician will decide the correct dosage and duration based on age, body weight, and disease condition. Only stop taking the capsule if your doctor advises you to stop.

Safety Advices for Mexohar 50mg Capsule

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If you are pregnant, suspecting, or planning for the pregnancy, report to your doctor before starting the treatment with Mexohar 50mg Capsule. 

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Breast Feeding


Mexohar 50mg Capsule can pass into breast milk. Therefore, breastfeeding is not recommended while undergoing treatment with this drug.

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Mexohar 50mg Capsule should be cautiously used in patients with lung diseases. Inform your physician if you have lung disease before starting the treatment. 

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Mexohar 50mg Capsule should be cautiously used in patients with severe liver diseases. Dose adjustments are necessary. Inform your doctor if you have liver issues before initiating the therapy.

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It is unknown whether consuming alcohol interacts with Mexohar 50mg Capsule. Please consult your doctor for more advice.

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Driving vehicles or operating machinery while taking Mexohar 50mg Capsule is unsafe because in rare cases it may cause tiredness, confusion, and blurred vision in some individuals. 

Side Effects of Mexohar 50mg Capsule

Side effects are unwanted symptoms caused by medicines. Even though all drugs cause side effects, not everyone gets them.


  • Allergic reaction
  • Convulsions (fits)
  • Speech disorders
  • Liver injury
  • Oesophagus injury
  • Pulmonary fibrosis
  • Confusion
  • Double vision
  • Disorders of heart rhythm
  • Collapse
  • Slowed heart rate


  • Vertigo
  • Vomiting
  • Weakness
  • Abdominal pain
  • Acne
  • Blurred vision
  • Chest pain
  • Low blood pressure
  • Fatigue
  • Flushing
  • Headache
  • Increased heart rate
  • Insomnia
  • Nausea
  • Pain in extremities
  • Paresthesia
  • Sleepiness
  • Tremors

Word of Advice

Mexohar 50mg Capsule can cause stomach upset. To minimize this, your doctor may advise you to take the medication with food or antacids. Follow your doctor's recommendations on when and how to take the medication. Maintain proper hydration by drinking enough water throughout the day. Staying hydrated can help support your overall health and the effectiveness of your medications.


Q 1. What is myotonia, and how does Mexohar 50mg Capsule help with it?

Myotonia refers to genetic defects that affect muscle functioning, causing muscle stiffness and difficulty relaxing after contraction. Mexohar 50mg Capsule can alleviate severe myotonia by blocking sodium channels in muscles, which can help reduce muscle stiffness.

Q 2. Can Mexohar 50mg Capsule treat both slow and fast heart rhythms?

Mexohar 50mg Capsule can be used to treat both slow and fast heart rhythms. It helps restore a regular and steady heart rhythm, regardless of whether the heart rate is too slow (bradycardia) or too fast (tachycardia).

Q 3. Are there any common side effects of Mexohar 50mg Capsule?

Some common side effects of Mexohar 50mg Capsule may include nausea, vomiting, stomach discomfort, dizziness, tremors, shaky feeling, blurred vision, and coordination problems.

Q 4. Is Mexohar 50mg Capsule a local anesthetic as well?

Mexohar 50mg Capsule is considered both an antiarrhythmic medication and a local anesthetic. Its local anesthetic properties are related to its ability to block sodium channels, which can help reduce pain and muscle stiffness.

Q 5. Can Mexohar 50mg Capsule interact with other medications?

Mexohar 50mg Capsule can interact with other medications, including other antiarrhythmics, medications affecting the liver, and drugs that can prolong the QT interval (a measure of heart rhythm). Inform your doctor about all the medications you are taking to avoid serious interactions.

Fact Box of Mexohar 50mg Capsule

Molecule name: Mexiletine

Therapeutic class: Antiarrhythmics

Pharmacological class: Group-1B antiarrhythmics


1. Treatment of arrhythmias

2. Non-dystrophic myotonic disorders


  1. Lupin Europe GmbH, Electronic Medicines Compendium (EMC), [Revised on 2nd Jun 2021] [Accessed on 29th August 2023],
  2. Danbury; US Food and Drug Administration; [Published on 1998] [Accessed on 29th August 2023],
  3. S Singh et al; Mexiletine; NCBI Bookshelf; [Revised on 19th May 2021] [Accessed on 29th August 2023],
  4. KD Tripathi, Antiarrhythmic Drugs, Essentials of Medical Pharmacology, 8th Edition, 2019, 570-583.
  5. Robert D. Harvey, Augustus O. Grant, Agents Used in Cardiac Arrhythmias, Lange’s Basic & Clinical Pharmacology, 14th Edition, 2018, 228-253.


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