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Dantrium Side Effects

Because Dantrium is an older medication, extensive clinical studies have not been done to determine how often certain side effects might occur. However, some of the possible problems include diarrhea, drowsiness, and muscle weakness. There are also potentially serious reactions, such as seizures, changes in vision, or blood in the urine, which require your healthcare provider's attention right away.

An Introduction to Dantrium Side Effects

Just like any medicine, Dantrium® (dantrolene sodium) can cause side effects. However, not everyone who uses the medication will have problems. In fact, most people tolerate it quite well. If side effects do occur, in many cases, they are minor and either require no treatment or are treated easily by you or your healthcare provider.
(This article covers many, but not all, of the possible side effects with Dantrium. Your healthcare provider can discuss a more complete list with you.)

Common Side Effects of Dantrium

For many medications, the prescribing information carefully explains the exact percentage of side effects that were reported in clinical trials. However, the prescribing information for almost all older medications, including Dantrium, includes only vague information on potential side effects, without any detailed statistics on how often they may occur. Therefore, it can be difficult to know exactly how common the side effects of these medications may be.
Some of the more common Dantrium side effects include but are not limited to:
  • Drowsiness
  • Dizziness
  • Muscle weakness
  • General feelings of unease or illness
  • Fatigue
  • Diarrhea.
Other possible reactions, reported less frequently, include but are not limited to:
  • Decreased appetite
  • Abdominal (stomach) cramps
  • Nausea
  • Vomiting
  • An acne-like rash
  • Constipation
  • Headache
  • Lightheadedness
  • Changes in taste or an abnormal taste in the mouth
  • Insomnia
  • Drooling
  • Changes in urination
  • Abnormal hair growth
  • Sweating
  • Muscle, joint, or back aches
  • Excessive tearing (watering eyes).
Know the Signs - Concussion Safety

Dantrium Medication Information

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