The term Posology originates from Greek word "posos" meaning how much and
"logos" meaning study. but the question of posology in Homopathic context extends
far beyond how much. In homoeopathy,homoeopathic does implies with the potency,
quantity and form of medicine; and the repetition of the medicine. there are three types
of scales used to prepare protencies; the decimal scale (denoted as D or X Scale where
the medicinal substance is diluted at a ratio of 1:10), Centesimal scale (denoted as C
Scale where the medicinal substance is diluted at a ratio of 1:100), and 50 millesimal
scale (denoted as LM Scale where the medicinal substance is diluted at a ratio of
1:50000),
The potency are broadly classified into 5 types: