I see a lot of patients, who are slightly overweight. I put them on an exercise regime, and tell them to restrict their diet. But sometimes, they are unable to control their appetite and have dinner at night. They ask me for any appetite suppressant to decrease their appetite. They prefer taking medicine and maintaining their weight at least. I know about tablet Phentermine and Methylphenidate, but they are not available easily. What medicine should I suggest for such patients? Please help.