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When and How to Take the Medication

Some general considerations to keep in mind during treatment with mexiletine include the following:
  • This medication comes in capsule form. It is usually taken by mouth every 8 hours, although some people may only need to take it every 12 hours.
  • You will begin taking mexiletine in a hospital setting, where you can be closely monitored.
  • Mexiletine should be taken with food or an antacid to help minimize the risk of stomach irritation.
  • Try to take your doses at about the same times each day to keep an even level of the drug in your bloodstream.
  • For mexiletine to work properly, it must be taken as prescribed. Do not stop taking it, even if you feel well, as your irregular heartbeat may return.

Dosing Information for Mexiletine

The dose of mexiletine your healthcare provider recommends will vary, depending on a number of factors, including:
  • How you respond to the medication
  • Other drugs you are taking
  • Other medical conditions you may have.
As is always the case, do not adjust your dosage unless your healthcare provider specifically tells you to do so.
(Click Mexiletine Dosage for more information.)

Drug Interactions

Mexiletine may react with a number of other medicines (see Drug Interactions With Mexiletine).

What If I Take an Overdose?

An overdose with this medication could cause life-threatening symptoms, including heart rhythm problems. Seek immediate medical attention if you may have taken too much mexiletine.
(Click Mexitil Overdose for more information.)
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Mexiletine Drug Information

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