My cousin is 15.5 and is 5 ft and 2.75 inches and weighs 115 lbs. However, she had been asking me if it is safe for her to take Phentermine to lose 10 pounds. She has tried everything possible like dieting, eating healthy, exercising, that girl works so hard but she just can't lose those ten pounds. I want to buy her this medication because she is so self conscious all the time and it pains me to see her that sad over her self image. Would it be safe for her to take the medication?