Suggest Treatment For Hair Loss

Hello dr. I am 21 yrs old. I met a dr, concerning hair loss, he prescribed me some tests, concerning, hair loss, my homoglobin -9 calcium -8.38 ferritin - 4.60 iron- 20 B12- 421 vitamin D -10 they prescribed me Renocia tablet gse+ace hairjoy lotion, and sebawash shampoo, I am concerned that if I am taking these medicines, does it going to make my weightgain, as I am overweight. Doing gymming. Can t Puton weight reply soon will be really thankful..