Dantrium Side Effects

Generic Name: Dantrolene

Please note - some side effects for Dantrium may not be reported. Always consult your doctor or healthcare specialist for medical advice. You may also report side effects to the FDA at http://www.fda.gov/medwatch/ or 1-800-FDA-1088 (1-800-332-1088).

Side Effects of Dantrium - for the consumer

Dantrium

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Dantrium:

Decreased grip strength; diarrhea; dizziness; drowsiness; general body discomfort; lightheadedness; muscle weakness; nausea; pain or redness at injection site; unusual tiredness; weakness.

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); blood vessel inflammation; chest pain; dark urine; difficulty swallowing; inflammation at the injection site; severe stomach or abdominal pain; shallow breathing; unusual tiredness; yellowing of skin or eyes.

Dantrium Capsules

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Dantrium Capsules:

Diarrhea; dizziness; drowsiness; general body discomfort; nausea; sensitivity to sunlight; unusual tiredness; vision changes; weakness.

Severe allergic reactions (rash; hives; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); blood in the urine; bloody or black, tarry stools; chest pain; coffee ground-like vomit; confusion; dark urine; depression; difficulty urinating; fast heartbeat; fever or chills; seizures; severe or persistent diarrhea; severe stomach or abdominal pain; shortness of breath; unusual tiredness; vomiting; yellowing of the skin or eyes.

For the professional

Dantrium

The most frequently occurring side effects of Dantrium have been drowsiness, dizziness, weakness, general malaise, fatigue, and diarrhea. These are generally transient, occurring early in treatment, and can often be obviated by beginning with a low dose and increasing dosage gradually until an optimal regimen is established. Diarrhea may be severe and may necessitate temporary withdrawal of Dantrium therapy. If diarrhea recurs upon readministration of Dantrium, therapy should probably be withdrawn permanently.

Other less frequent side effects, listed according to system, are:

Gastrointestinal: Constipation, rarely progressing to signs of intestinal obstruction, GI bleeding, anorexia, swallowing difficulty, gastric irritation, abdominal cramps, nausea and/or vomiting.

Hepatobiliary: Hepatitis.

Neurologic: Speech disturbance, seizure, headache, light-headedness, visual disturbance, diplopia, alteration of taste, insomnia, drooling.

Cardiovascular: Tachycardia, erratic blood pressure, phlebitis, heart failure.

Hematologic: Aplastic anemia, anemia, leukopenia, lymphocytic lymphoma, thrombocytopenia.

Psychiatric: Mental depression, mental confusion, increased nervousness.

Urogenital: Increased urinary frequency, crystalluria, hematuria, difficult erection, urinary incontinence and/or nocturia, difficult urination and/or urinary retention.

Integumentary: Abnormal hair growth, acne-like rash, pruritus, urticaria, eczematoid eruption, sweating.

Musculoskeletal: Myalgia, backache.

Respiratory: Feeling of suffocation, respiratory depression.

Special Senses: Excessive tearing.

Hypersensitivity: Pleural effusion with pericarditis, anaphylaxis.

Other: Chills and fever.

The published literature has included some reports of Dantrium use in patients with Neuroleptic Malignant Syndrome (NMS). Dantrium capsules are not indicated for the treatment of NMS and patients may expire despite treatment with Dantrium capsules.

More resources:

Dantrium

Dantrium

Dantrium - Includes detailed dosage instructions.

Dantrolene

Dantrium

Dantrium Intravenous

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