fast heartbeat, high or low blood pressure sweating or fever nausea, vomiting, or diarrhea muscle stiffness or tightness Cyclobenzaprine hydrochloride extended-release capsules may cause serious side effects that may lead to heart attack or stroke. Call your healthcare provider right away or go to ...
If you have been taking cyclobenzaprine for a long time, you should not suddenly stop taking it without talking to your healthcare provider. Stopping cyclobenzaprine suddenly, after taking it for a long time, may cause nausea, headache, and a general feeling of being unwell, tired, or not ha...