Hi Ishleen, If your Doctor has advised you to take perinorm, you must take that and the duration as well as the dose must have been prescribed by your Doctor, you should follow it. Regarding the side effects, the common side effects are nausea, mild insomnia, headache, dizziness
, general weakness, drowsiness
. If you are experiencing these effects severly then consult your doctor immediatly. Have faith in your health care provider and follow the instructions give by him/her. Take care.