How long can i use cantharis homeopathic medicine for urinary problems? after one day feel 20% better. do i continue and how often am i able to take?

Most physicians will not be able to answer your question because supplements are not investigated by the FDA, may have contaminants, have unsubstantiated claims with doses that may be too potent or ineffective. Your pharmacist may have some information about this supplement.

We do not know the problem you are using this for. You can look this up in a homeopathic book from where you learned to take it. Generally these meds are relatively harmless so may be till you are better