I was just prescribed 0.5mg risperidone but after doing research, find that it likely causes weight gain. im already eating a healthy diet and exercise 4-5 days week. should i still be concerned about gaining weight?

Everyone is different but is important to discuss potential weight gain. Your doctor should check your BMI as well as cholesterol and sugar levels during the first months. Maybe it is possible to substitute. Some antipsychotic drugs are more likely than others to cause weight gain. Risperidone has a medium risk. There is a lower risk of weight gain with Abilify, Rexulti, Latuda, and Geodon

If you are eating a healthy diet and the medication does not induce you to eat more than you usually eat, do not worry.