Side Effects, Vs. Tecfidera, Dosage, Cost & More

If you are considering taking Vumerity, it is important to discuss certain aspects of your health with your doctor. This includes your complete medical history, including any medical conditions you may have or medications you may be taking. This information helps your doctor determine if Vumerity may be a good treatment option for you.


Taking medicine with certain vaccines, foods, and other things can affect how the medicine works. These effects are called interactions.

Before taking Vumerity, be sure to tell your doctor about all medications you are taking, including prescription and over-the-counter medications. Also describe any vitamins, herbs or supplements you use. Your doctor or pharmacist can tell you about any interactions these may cause with Vumerity.

For more information on drug-condition interactions, see the “Warnings” section below.

Interactions with Medications or Supplements

Vumerity may interact with the drug dimethyl fumarate (Tecfidera). Your body breaks down both drugs into the same substance, monomethyl fumarate (MMF). So taking both drugs at the same time could lead to excessive buildup of MMF in your body.

Because of this risk, doctors usually do not prescribe Vumerity with Tecfidera. If you are switching from Tecfidera to Vumerity, you will need to wait one day after stopping Tecfidera to start taking Vumerity.

Studies has not reported any other drug interactions with Vumerity. But that doesn’t mean more drug interactions with Vumerity will go unrecognized in the future. For example, new drugs may become available that interact with Vumerity.

For this reason you should always tell your doctor and pharmacist about any medicines you are taking in addition to Vumerity. They can then check for any new interactions during your treatment.


Vumerity may not be right for you if you have certain medical conditions. These are known as drug-condition interactions. Other factors may also determine if Vumerity is a good treatment option for you.

Talk to your doctor about your medical history before taking Vumerity. Factors to consider include those listed below.

  • Moderate or severe kidney problems. It is generally safe for people with mild kidney problems to take Vumerity. But doctors usually won’t prescribe the drug to someone with moderate or severe kidney problems. If you have kidney problems, such as chronic kidney disease, talk to your doctor before starting treatment with Vumerity. They will likely recommend other treatments if your kidney problems are moderate or severe.
  • Liver problems. Vumerity can cause side effects affecting the liver, including liver damage in rare cases. If you have liver problems, such as alcoholic liver disease, taking Vumerity may make your condition worse. Depending on the severity of your liver problems, your doctor will discuss with you the safety of taking Vumerity.
  • Low white blood cell count. Vumerity can lower your white blood cell count, although this side effect is not common. If your white blood cell count is already low, taking Vumerity could make your condition worse. Your doctor can tell you if it is safe to take Vumerity. They may also suggest treating your low white blood cell count before you start taking Vumerity.
  • Active infection. Because Vumerity can lower your white blood cell count, your body may find it harder to fight infections during treatment. If you currently have an infection, Vumerity may make it more difficult to treat. Your doctor will probably treat your infection before you start taking Vumerity.
  • Allergic reaction. If you’ve had an allergic reaction to Vumerity or any of its ingredients, your doctor probably won’t prescribe Vumerity for you. Ask them what other medications are better options for you.

Vumerity and alcohol

You should avoid drinking alcohol while taking doses of Vumerity. This could affect the level of the medicine in your body, possibly making it less effective.

Additionally, alcohol and Vumerity can cause some of the same side effects, including diarrhea, nausea, and flushing (temporary warmth, discoloration, or deepening of skin color). So drinking alcohol while taking Vumerity may increase your risk of these side effects.

If you drink alcohol, talk to your doctor. They can advise you on how much, if any, you can safely drink while taking Vumerity. But remember that you should not take Vumerity doses at the same time as drinking alcohol.

Pregnancy and breastfeeding

It is not known if it is safe to take Vumerity while pregnant or breastfeeding.

If you are pregnant or breastfeeding, or planning to become pregnant or breastfeeding, talk to your doctor. They can discuss possible treatment options with you that are safe for you during this time.

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