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contain cyanocobalamin 7.5 mcg, ferric ammonium citrate 160 mg, folic acid
0.5 mg. It is vitamin supplement. It will increase your blood, haemoglobin
content. It will not increase your weight.
To increase the weight, you have to eat minimum five times. Eat more calorie food. For example, if you regular lunch, drink orange juice or eat chocolate along with the luch. This way you increase the calorie content of your food.
Do muscle building exercises. Eat proteins
as much as possible to increase the muscle strength.
Regards Dr. Jagdish