This is a randomized, double-blind, active-controlled, parallel assignment clinical trial conducted at Pakistan Institute of Medical Sciences, Islamabad. Adults aged 18-65 with ICD 11 diagnosis of Bipolar I Disorder, current episode manic, will be randomized 1:1 to receive Risperidone or Cariprazine for 6 weeks. The study aims to compare reduction in mania symptom severity and tolerability between the two antipsychotics. Assessments include YMRS, UKU and safety parameters at baseline, week 3, and week 6.'