Preperation of medicine in homoeopathy
In homoeopathy medicines are prepared from different sources like minerals, plants, animals, toxins, diseased parts ect. Medicines are prepared from these substances by a special process called potentisation.Here the soluble substances are potentised by diluting(mixing with spirit with a downward stroke) with spirit and insoluble substances by grinding(trituration) with sugar of milk.The crude drug substance is first mixed with a calculated quantity of spirit and water and kept for few days .From this mixture extract is taken and is called mother tincture(denoted as Q).
From this mother tincture dilutions are prepared by potentisation.Potentisation is a mathematical process by which the quantity of original drug substance reduces but medicinal power increases. Depending upon the ratio of quantity of drug substance and vehicle(spirit or sugar of milk)there are different scales for this process.Each scale has got different potencies which indicate power of medicine.Example in decimal scale the drug substance vehicle ratio is1/10 and the availables potencies are 3x,6x.12x ect.In centismal scale the ratio is 1/100 and the available potencies are 30c,200c ect,in LM potency the ratio is 1/50000 and the available potencies are 0/1,0/2,0/3 ect.Potency is written after the name of every medicine
Same medicine is available in different potencies. Suitable potency is selected according to so many facters like severity,depth of disease,condition of the patient ,nature of disease ,type of symptoms,age of patient and ect.








