Welcome to HCM!
Thanks for posting your query. I am happy to address your questions. Tizanidine
which is a muscle relaxant
can have serious side effects, including fainting, mental/mood changes (such as hallucinations
as you are currently experiencing), slow/irregular heartbeat, vision changes (such as blurred vision
). Will recommend to tell your doctor right away. Please do write back in case you have follow up queries to ask. Thanks