Sizodon Plus Tablet manufactured by Sun Pharmaceutical Industries Ltd contains Risperidone (3mg) + Trihexyphenidyl (2mg). Check more about its composition, uses, side-effects, price, precautions, drug interactions, expert advice and warnings. Sizodon Plus Tablet is a fixed-dose combination composed of two different medicines, namely, Risperidone and, Trihexyphenidyl. Risperidone is an atypical antipsychotic that acts by regulating the levels of chemical messengers (dopamine and serotonin) to enhance mood, perception and behaviour. Sizodon Plus Tablet is a combination medicine for schizophrenia and mood disorders. It contains risperidone and trihexyphenidyl and may cause drowsiness, dry mouth, and weight gain. Learn about Sizodon uses, dosage, side effects, food interactions, and more. Get all the details about Sizodon from MedicinesFAQ.