By Medically reviewed by hellodoktor

Generic Name: Mecomin Brand Name(s): Mecomin.


What is mecomin (methylcobalamin) used for?

Mecomin is used for nerve damage, pain in neurological disorders, numbness and tingling, anemia and other conditions. Mecomin may also be used for purposes not listed in this medication guide.

How should I take mecomin (methylcobalamin)?

Take mecomin by mouth and exactly as directed. Do not take more or less of it or take it more often than directed on the package label or recommended by your doctor.

How do I store mecomin (methylcobalamin)?

Mecomin is best stored at room temperature away from direct light and moisture. To prevent drug damage, you should not store mecomin in the bathroom or the freezer. There may be different brands of mecomin that may have different storage needs. It is important to always check the product package for instructions on storage, or ask your pharmacist. For safety, you should keep all medicines away from children and pets.

You should not flush mecomin down the toilet or pour them into a drain unless instructed to do so. It is important to properly discard this product when it is expired or no longer needed. Consult your pharmacist for more details about how to safely discard your product.

Precautions & warnings

What should I know before using mecomin (methylcobalamin)?

Before using this drug, tell your doctor if:

  • You are pregnant or breastfeeding. This is because, while you are expecting or feeding a baby, you should only take medicines on the recommendation of a doctor.
  • You are taking any other medicines. This includes any medicines you are taking which are available to buy without a prescription, such as herbal and complementary medicines.
  • You have allergy with any of active or inactive ingredients of mecomin or other medications.
  • You have any other illnesses, disorders, or medical conditions.

Is it safe during pregnancy or breastfeeding?

There isn’t enough information about the safety of using mecomin during pregnancy and breastfeeding. Please always consult with your doctor to weigh the potential benefits and risks before taking mecomin.

Side effects

What side effects can occur from mecomin (methylcobalamin)?

Side effects may include:

  • Anorexia
  • Nausea
  • Vomiting and diarrhea
  • Rash
  • Headache
  • Hot sensation
  • Diaphoresis and pain/induration at IM injection site
  • Anaphylactoid reactions (parenteral)

Not everyone experiences these side effects. There may be some side effects not listed above. If you have any concerns about a side-effect, please consult your doctor or pharmacist.


What drugs may interact with mecomin (methylcobalamin)?

Mecomin may interact with other drugs that you are currently taking, which can change how your drug works or increase your risk for serious side effects. To avoid any potential drug interactions, you should keep a list of all the drugs you are using (including prescription drugs, nonprescription drugs and herbal products) and share it with your doctor and pharmacist. For your safety, do not start, stop, or change the dosage of any drugs without your doctor’s approval.

Does food or alcohol interact with mecomin (methylcobalamin)?

Mecomin may interact with food or alcohol by altering the way the drug works or increase the risk for serious side effects. Please discuss with your doctor or pharmacist any potential food or alcohol interactions before using this drug.

What health conditions may interact with mecomin (methylcobalamin)?

Mecomin may interact with your health condition. This interaction may worsen your health condition or alter the way the drug works. It is important to always let your doctor and pharmacist know all the health conditions you currently have.


The information provided is not a substitute for any medical advice. You should ALWAYS consult with your doctor or pharmacist before using mecomin (methylcobalamin).

What is the dose of mecomin (methylcobalamin) for an adult?

Oral – Peripheral neuropathies

1500 mcg/day in 3 divided doses.

Parenteral – Peripheral neuropathies

500 mcg daily IM/IV 3 times/wk.

Parenteral – Megaloblastic anemia caused by vitamin B12 deficiency

500 mcg daily IM/IV 3 times/wk.

Maintenance dose: After about 2 mth of therapy, reduce dose to single admin of 500 mcg every 1-3 mth.

What is the dose of mecomin (methylcobalamin) for a child?

The dosage has not been established in pediatric patients. It may be unsafe for your child. It is always important to fully understand the safety of the drug before using. Please consult with your doctor or pharmacist for more information.

How is mecomin (methylcobalamin) available?

Mecomin is available in the following dosage forms and strengths:

  • Tablet

What should I do in case of an emergency or overdose?

In case of an emergency or an overdose, call your local emergency services or go to your nearest emergency room.

What should I do if I miss a dose?

If you miss a dose of mecomin, take it as soon as possible. However, if it is almost time for your next dose, skip the missed dose and take your regular dose as scheduled. Do not take a double dose.

Hello Health Group does not provide medical advice, diagnosis or treatment.

Review Date: September 5, 2017 | Last Modified: September 13, 2019

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