What medicine can one take to decrease fat in d stomach area. and which is a good medicine for increasing stamina?

There are very few drugs that help and you will need a prescription. You need to reduce the amount of food you eat and exercise more. Any exercise will do, as long as you sweat for half hour/day. For healthy diet: http://www.choosemyplate.gov/., exercise 30 minutes/day, drink enough water daily so your urine is mostly colorless, have safe sex, no tobacco alcohol weed or street drugs.