Q what is purgative?

Q Mgso4.7h20 is used a purgative?

Q explain purgative briefly

where is it used?

laxatives are salts containing very charged particles that don't promptly cross cell layers and in this way stay inside the lumen, or path, of the gut. By holding water through osmotic powers, saline laxatives increment the volume of the substance of the inside, extending the colon and creating an ordinary jolt for constriction of the muscle, which prompts poo. Some ordinarily utilized salts are magnesium sulfate (Epsom salts), magnesium hydroxide (drain of magnesia) Contact laxatives act specifically on the muscles of the digestive tract, fortifying the wavelike strong constrictions (peristalsis) that outcome in poo. This sort of diuretic incorporates cascara, senna, ricinoleic corrosive (castor oil), and phenolphthalein.