Hello, Myteka may cause several side effects and the most likely ones are: - changes in mood and related conditions such as anxiety, depression, etc - the thinking process being altered with hallucinations in some cases, suicidal thoughts, etc - neurological symptoms such as numbness, weakness, pains in arms or legs, uncontrolled muscle movements. - allergic reaction with rash, or more severe forms with facial swelling or shortness of breath Most of the patients tolerate this medication well and do not develop any side effects but the above side effects may happen in some cases and the doctor should be contacted in case this happens. I hope this answers your query. I remain at your disposal in case further medical assistance is needed. Regards, Dr. Antoneta Zotaj General and Family Physician