Good day! We recently visited a pediatrician for an examination. Every…

Good day! We recently visited a pediatrician for an examination. Everything was checked, the child's development is good, reflexes too. The weight should be slightly higher (the baby was born at 3520g, and now 5300g). He also weakly supports himself on his feet when you put him down. The pediatrician says this is due to muscle tone and prescribed us Elkar drops. Has anyone given the baby these drops? Should we give them? The baby is still very young.