Please help me I'll be highly oblighed.

As my sister was having bipolar mania from Dec 2021 then we consulted with psychiatrist and given medicine (OLA10 mg,Litcha sr450,monotap 50and lorex 0.5mg) then after 2 - 3 months we were seeing she was recovered. But then in March starting she start sleeping alot, become so sluggish and lazy not eating food and not doing anything only sleep a lot. Then we consulted doctor he told that she is in depression and given medicine (Litcha Sr450,OLA10 and lorex again).Then after few days she was normal like before. By mischance she didn't eaten medicine as she was out of station and we thought she is taking medicine But she didn't take those for more than 10 days.Again from past 3 days she is behaving like earlier so much sluggish and sleep more than 15 hours. Not eating food. Also she rudely told our mother that don't talk to me for 7 days do your own work. Please help what to do why her behavior is changing in month when she'll fine Now giving her Escitalocad plus 10 and(Litcha Sr450).