Tizanidine (Systemic)

Brand Names : Zanaflex

Side Effects of This Medicine

Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Check with your doctor as soon as possible if any of the following side effects occur:

More common

Fever; loss of appetite; nausea and/or vomiting; nervousness; pain or burning while urinating; sores on the skin; tingling, burning, or prickling sensations; yellow eyes or skin

Less common

Black, tarry stools; bloody vomit; blurred vision; chills or sore throat; coldness; convulsions (seizures); cough; dry, puffy skin; eye pain; fainting; irregular heartbeat; kidney stones; seeing things that are not there; unusual tiredness or weakness; weight gain

Other side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. However, check with your doctor if any of the following side effects continue or are bothersome:

More common

Anxiety; back pain; constipation; depression; diarrhea; difficulty in speaking; dizziness or lightheadedness, especially when getting up from a lying or sitting position; drowsiness; dry mouth; heartburn; increased sweating; increased muscle spasms or tone; muscle weakness; pain or burning in throat; runny nose; skin rash; sleepiness; stomach pain; uncontrolled movements of the body

Less common

Difficulty swallowing; dry skin; joint or muscle pain or stiffness; loss of hair; migraine headache; mood changes; neck pain; swelling of feet or lower legs; swollen area that feels warm and tender; trembling or shaking; unusual feeling of well-being; weight loss

Other side effects not listed above may also occur in some patients. If you notice any other effects, check with your doctor.