Is Vitazyme Drops Safe For A Baby?

My daughter in 11 months now. She had very low appetite and her weight gain for last few months was very minimal. Her Pedistrition has prescribed Vitazyme Drops (7 drops thrice a day) after food. Is it safe to give this drops to my baby. Also for how long can i give her this drops? Her appetite has really improved since i started giving her this drops