Serotonin getting off cymbalta just one of many factors that may play a role in the disorder. site, you agree not to redistribute the information found therein. Feeling sad, 75 mg effexor what we may call depressed, happens to all of us. It is only after this that the doctor can make a right judgement about the person in question. Cochrane Database. For the person who does not fit clearly into either of these patterns, there might be little difference between morning and evening 75 mg effexor light treatment, but morning light would be the better bet.