how to get more lactaid pills?

i couldn’t complete the goal to get a liter of milk with the first 3, and i don’t know how to get more. does anyone know how to get more of them?

what you’re talking about is the advance lactaid pills from the female Dr. if you fail to produce a litre you should be given 3 more to try again, other wise you can buy normal lactaid pills at the outskits store or the farm. granted its been years since I played fetish master, so I might be wrong