How often in a day do you take medicine? How many times?

Mexiletine uses

Mexiletine information

Mexiletine is known to affect the way in which the patient's heart beats. Therefore, this drug is widely used in the treatment of patients who are suffering from severe irregular heartbeat.

Mexiletine indications

Mexiletine is a popular medicine that is widely prescribed in the treatment of patients who are suffering from severe irregular heartbeat. However, this medicine might also be prescribed to prevent or to treat some other medical disorders that have not been listed here.

Mexiletine warnings

During your treatment with Mexiletine you should avoid skipping doses, changing your regular dosing schedule, or stopping your treatment with this medicine without first consulting it with your personal physician. Changing the schedule that you have been prescribed by your physician could trigger severe consequences. Mexiletine is a medicine that can sometimes cause blurred vision, drowsiness and dizziness. Therefore, during your treatment with this medicine you should be careful while performing hazardous activities or any other activities that require mental and physical alertness. Before you start taking Mexiletine, you should alert your personal physician if you have:

any type of heart problem or heart disease,

liver disease,


Under these circumstances, you might not be allowed to start taking Mexiletine, or you might have to take a lower dose of this medicine. Your personal physician might want to monitor your treatment with this medicine to see how your body reacts to it.

Mexiletine is a category C FDA pregnancy medicine. Therefore, it has not been clearly determined whether a treatment with this drug could harm a growing fetus if it is taken during pregnancy. You should inform your physician if you are pregnant or if you plan to be so soon. It has been clearly determined that this medicine's ingredients can pass into breast milk. However, it is not known if a treatment with this medicine could harm a nursing infant. You should ask your physician if it is safe to take this drug if you are breastfeeding a child.


Mexiletine intake guidelines

Ask your doctor how and when it is best that you use Mexiletine. You must not disobey any of his or her instructions. If you somehow fail to understand some of them, you should ask a pharmacist, a doctor or a nurse for further advice and recommendations. You should also carefully read the information in the medicine's label.

Each dose of Mexiletine should be accompanied by a full glass of water. You should try to take this medicine with food (on a full stomach) in order to avoid experiencing stomach upset. You must not stop your treatment with this medicine (Mexiletine) without first consulting it with your personal physician (this could worsen your medical condition). You should store this medicine away from heat and moisture (keep it in a cool and dry place, not in the bathroom or anywhere near the kitchen sink). Keep it in a place that is far from the reach of pets and children, in order to avoid unwanted accidents such as poisoning.

Mexiletine dosage

Ask your personal doctor to tell you the correct dose of Mexiletine that suits you best. You must not make any alterations to this dose (the one that you have been prescribed by your doctor) without first consulting it with your personal physician.

Mexiletine overdose

If you suspect that you might be suffering from an overdose with Mexiletine, you ought to seek medical care as soon as possible. You should alert your local poison control centre and inform your physician. If necessary, go to the local emergency room. The average symptoms of an overdose with Mexiletine usually include seizures, nausea, tingling or numbness, dizziness, tiredness, worsening irregular heartbeat and loss of consciousness.

Mexiletine missed dose

In order to get the best results from your intake of Mexiletine, you must try not to miss any of your prescribed doses of this medicine. Missing several doses of it could lead to extremely dangerous side effects.

If you happen to miss a dose of Mexiletine, you should take it as soon as you recall. However, if it is already time to take another dose, you must skip the dose that you have missed and continue with your regular dosing schedule. It is highly recommended that you should not take double or extra doses of Mexiletine without your personal physician's approval. If you miss several doses of this drug in a row, alert your personal doctor and ask him or her for further instructions.

Mexiletine side effects

Stop your treatment wit Mexiletine if you are experiencing any of the following severe side effects:

an allergic reaction (throat closing; difficulty breathing; swelling of your lips, face or tongue; hives);

wheezing, chest pain, coughing, or chest discomfort;

a worsening or a new irregular heartbeat pattern;

unusual bleeding or bruising;

fever, sore mouth, sore throat, mouth ulcers, or infections.

There are other, less severe side effects that are also more common. You may continue taking Mexiletine, but you should inform your physician if you have:

dizziness, tiredness, lightheadedness;

dry mouth;

poor coordination;

diarrhea or constipation;

upset stomach, vomiting, heartburn, or decreased appetite;


headache or blurred vision;

ringing in your ears;

numbness, tremor or tingling;



If you experience any of the symptoms that have been listed here or any other unusual or bothersome effects during your treatment with Mexiletine, you must alert your doctor immediately.

Mexiletine drug reactions

Ask your personal physician if you may take any other medicines during your treatment with Mexiletine.


Mexiletine pharmaceutical active ingredients containing related brand and generic drugs:

infoActive ingredient is the part of the drug or medicine which is biologically active. This portion of the drug is responsible for the main action of the drug which is intended to cure or reduce the symptom or disease. The other portions of the drug which are inactive are called excipients; there role is to act as vehicle or binder. In contrast to active ingredient, the inactive ingredient's role is not significant in the cure or treatment of the disease. There can be one or more active ingredients in a drug.

Mexiletine available forms, composition, doses:

infoForm of the medicine is the form in which the medicine is marketed in the market, for example, a medicine X can be in the form of capsule or the form of chewable tablet or the form of tablet. Sometimes same medicine can be available as injection form. Each medicine cannot be in all forms but can be marketed in 1, 2, or 3 forms which the pharmaceutical company decided based on various background research results.
Composition is the list of ingredients which combinedly form a medicine. Both active ingredients and inactive ingredients form the composition. The active ingredient gives the desired therapeutic effect whereas the inactive ingredient helps in making the medicine stable.
Doses are various strengths of the medicine like 10mg, 20mg, 30mg and so on. Each medicine comes in various doses which is decided by the manufacturer, that is, pharmaceutical company. The dose is decided on the severity of the symptom or disease.

Capsules; Oral; Mexiletine Hydrochloride 150 mg
Capsules; Oral; Mexiletine Hydrochloride 200 mg
Capsules; Oral; Mexiletine Hydrochloride 250 mg
Mexiletine 150 mg capsule1.11 USD
Mexiletine 200 mg capsule1.33 USD
Mexiletine 250 mg capsule1.54 USD
Mexiletine HCl 150 mg capsule1.16 USD
Mexiletine HCl 200 mg capsule1.38 USD
Mexiletine HCl 250 mg capsule1.6 USD
Mexitil 200 mg capsule1.23 USD
Mexitil 250 mg capsule1.85 USD
Novo-Mexiletine 100 mg Capsule0.89 USD
Novo-Mexiletine 200 mg Capsule1.19 USD


Mexiletine destination | category:

infoDestination is defined as the organism to which the drug or medicine is targeted. For most of the drugs what we discuss, human is the drug destination.
Drug category can be defined as major classification of the drug. For example, an antihistaminic or an antipyretic or anti anginal or pain killer, anti-inflammatory or so.

Mexiletine Anatomical Therapeutic Chemical codes:

infoA medicine is classified depending on the organ or system it acts [Anatomical], based on what result it gives on what disease, symptom [Therapeutical], based on chemical composition [Chemical]. It is called as ATC code. The code is based on Active ingredients of the medicine. A medicine can have different codes as sometimes it acts on different organs for different indications. Same way, different brands with same active ingredients and same indications can have same ATC code.

Mexiletine pharmaceutical companies:

infoPharmaceutical companies are drug manufacturing companies that help in complete development of the drug from the background research to formation, clinical trials, release of the drug into the market and marketing of the drug.
Researchers are the persons who are responsible for the scientific research and is responsible for all the background clinical trials that resulted in the development of the drug.



  1. Dailymed."MEXILETINE HYDROCHLORIDE CAPSULE [TEVA PHARMACEUTICALS USA, INC.]". https://dailymed.nlm.nih.gov/dailym... (accessed August 28, 2018).
  2. "Mexiletine". https://pubchem.ncbi.nlm.nih.gov/co... (accessed August 28, 2018).
  3. "Mexiletine". http://www.drugbank.ca/drugs/DB0037... (accessed August 28, 2018).

Frequently asked Questions

Can i drive or operate heavy machine after consuming Mexiletine?

Depending on the reaction of the Mexiletine after taken, if you are feeling dizziness, drowsiness or any weakness as a reaction on your body, Then consider Mexiletine not safe to drive or operate heavy machine after consumption. Meaning that, do not drive or operate heavy duty machines after taking the capsule if the capsule has a strange reaction on your body like dizziness, drowsiness. As prescribed by a pharmacist, it is dangerous to take alcohol while taking medicines as it exposed patients to drowsiness and health risk. Please take note of such effect most especially when taking Primosa capsule. It's advisable to consult your doctor on time for a proper recommendation and medical consultations.

Is Mexiletine addictive or habit forming?

Medicines are not designed with the mind of creating an addiction or abuse on the health of the users. Addictive Medicine is categorically called Controlled substances by the government. For instance, Schedule H or X in India and schedule II-V in the US are controlled substances.

Please consult the medicine instruction manual on how to use and ensure it is not a controlled substance.In conclusion, self medication is a killer to your health. Consult your doctor for a proper prescription, recommendation, and guidiance.



sDrugs.com conducted a study on Mexiletine, and the result of the survey is set out below. It is noteworthy that the product of the survey is based on the perception and impressions of the visitors of the website as well as the views of Mexiletine consumers. We, as a result of this, advice that you do not base your therapeutic or medical decisions on this result, but rather consult your certified medical experts for their recommendations.

Visitor reports

One visitor reported frequency of use

How often in a day do you take the medicine?
Are you taking the Mexiletine drug as prescribed by the doctor?

Few medications can be taken Once in a day more than prescribed when the doctor's advice mentions the medicine can be taken according to frequency or severity of symptoms. Most times, be very careful and clear about the number of times you are taking the medication. The report of sDrugs.com website users about the frequency of taking the drug Mexiletine is mentioned below.
Once in a day1

Three visitors reported doses

What is the dose of Mexiletine drug you are taking?
According to the survey conducted among sDrugs.com website users, the maximum number of people are using the following dose 201-500mg. Few medications come in only one or two doses. Few are specific for adult dose and child dose. The dose of the medicine given to the patient depends on the severity of the symptom/disease. There can be dose adjustments made by the doctor, based on the progression of the disease. Follow-up is important.

One visitor reported time for results

What is the time duration Mexiletine drug must be taken for it to be effective or for it to reduce the symptoms?
Most chronic conditions need at least some time so the dose and the drug action gets adjusted to the body to get the desired effect. The stastistics say sDrugs.com website users needed 1 month to notice the result from using Mexiletine drug. The time needed to show improvement in health condition after using the medicine Mexiletine need not be same for all the users. It varies based on other factors.
1 month1

One visitor reported age


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The information was verified by Dr. Arunabha Ray, MD Pharmacology

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