Hello. Sizodon and Rispond are both brands or trade names for Risperidone. The drug is classified under Pregnancy Category C, which means in animals, studies have revealed an adverse effect on the fetus but there are not enough and well-controlled researches and studies conducted in humans. The potential benefits of this drug may outweigh the probable risks that's why it is still prescribed to some pregnant women. To be sure, talk with the prescribing doctor about your concerns and the benefits and risks involved in the treatment.
Taking drugs with common action will be synergistic or the effect is increased especially if they will be taken at the same time. For safe medication administration, verbalize your concerns to the doctor and take only the drug as prescribed.