Common side effects of Dantrium may include:
- Feeling sleepy.
- Dizziness.
- Feeling tired or weak.
- Diarrhea.
The above side effects should not alarm you.
Serious side effects of Dantrium may include:
- Choking.
- Trouble swallowing.
- Chest pain or pressure.
- Shortness of breath.
If you have any of the above side effects, contact your doctor right away.
Signs to watch for:
liver problems - dark urine, feeling tired, not hungry, upset stomach or stomach pain, light-colored stools, throwing up, or yellow skin or eyes.
allergic reaction - rash; hives; itching; red, swollen, blistered, or peeling skin with or without fever; wheezing; tightness in the chest or throat; trouble breathing, swallowing, or talking; unusual hoarseness; or swelling of the mouth, face, lips, tongue, or throat.