> I don't know if you're allowed to do that, maybe there is no guarantee that every grain contains the same amount of medication? There are entire fields of ma

> I don't know if you're allowed to do that, maybe there is no guarantee that every grain contains the same amount of medication? There are entire fields of material science dedicated to this problem. Generally, if a single pill is metered into smaller doses, resources went into ensuring that each dose is metered accurately. The grain form was probably for absorption or time-release.