how to figure out how many tablets to compound
Calculate how much medication you need to make a certain number of doses. Total number of doses x mg per dose = total mg for compounding mixture. For example: 1  You need to dose your rat 2 times a day for 10 days with doxycycline (20 total doses).2  The dosage prescribed is 4 mg. 3  20 doses x 4 mg per dose = 80 mg total. 4  Med balls-add 80 mg to recipe and cut into 20 balls.here are 2 methods to calculate accurate medicine balls. Calculate how many doses there are in one certain pill or capsule. Total Mg of pill divided by mg of each dose = the number of dosages per tablet/capsule. Each dose is a med ball. Here are some sample calculations: 1  100 mg Doxycycline /dosage of 2.5 mg = 40 doses.