Greetings yes it's a good medicine it will help to reduce

Has the child gotten his entire development assessed ? You said he started to speak few words . Children who have speech delay or have difficulty in communication often have behaviour issues , in this case hyperactivity . It’s important to understand what is underlying issues , instead of just correcting one segment of it i.e behaviour ( hyperactivity )

Consult to Pediatrician physically for further evaluation and treatment

Continue medications as advised.