Talk to Pediatrician on Breastfeeding Problem

Assalam o Alaikum, I’m a mother of 15 days daughter and she is on mother feed. First week my daughter took milk properly but now her food intake has increased, I feed her for upto 20 to 15 minutes but after some time she asks for milk again or falls asleep after drinking milk. I don't want to give formula milk to my daughter, please tell me any tablet or capsule to increase my breast feed, any good supplement without any side effects