hi dr, my husband had met with an accident and its been around 8 months now. he had multiple facial fractures which was repaired and also csf leak from nose for which surgery was done. he had a major damage. now absolutely fine. he is taking c toin 100 mg from 8 months . 3 tablets at night. for how long shoul he continue it. can he discontinue... one thing i have observed in him after accident is he has become very angry and irritable and patienceless