Hi...
I can understand your concern regarding tremors and weight gain....
Lithium induced tremors are common and weight gain issues are common with risperidone
Next Steps
I would advise you to consult ur doctor for alternative drugs if possible as we have a plenty of choices and medication which doesn't cause such side effects
Health Tips
Do regular exercise to maintain ur weight
Don't stop any drug abruptly without consultation
good luck
have a good health
regards