Are Practin And Liv52 Safe Medication For Weight Gain?

what are side effects of liv52 syrup?dosage to take?i am 30yrs having body wt. Only 45kg and want to increase body wt. Without any more side effect by medical medicines.can i use practin and liv52 or which medicine will be better to use available easily to gain wt. Fastly?plz advise me.i have other many questions so give me ur mail address