so i answered in your post before but got no answer back.
so about what you asked. you should know that with pumping it should be at least 4 times a day, on a daily schedule. 8 to 10 times if you have time. each time about 20 mins
then as of drugs you can take domperidone. it triggers prolactin production in your body, which is responsible for milk productiion. you can take estrogen and progesterone too but these need medical advice which i cant give.
DONT forget nipple stimulation and breast massage. it is very important, ou will need to use both hands to massage around the entire breast - almost as if you were giving yourself a breast exam. Then you will need to stimulate your nipples and areolas using your fingers and thumbs, massaging them and rolling them between your fingers. Try to press the areolas as you pull the nipples, as this is the motion that best replicates an infant's sucking. again these should be done 8 to 10 times if you have time
-these can help too: three capsules of fenugreek seed and three capsules of blessed thistle herb three times a day, with food.
-herbal tea known as "Mother's Milk"
-Drink lots of water
-Eat oatmeal