We prescribe isotretinoin in many cases of acne vulgaris specially nodulocystic acne and in a few other diseases. Isotretinoin has many adverse events like depression, emotional lability, suicidal ideation, anxiety disorders and so on. We should screen a patient for psychiatric adverse events during each follow up visit who is on isotretinoin therapy. Are you in favor of screening? What screening tool should we use? Why these psychiatric events develop?