Mankhwala azitsamba ndi ntchito yomwe ingapangidwe ndi mitundu yosiyanasiyana: tiyi wazitsamba, makapisozi kapena tincture wothandizira komanso wothandizira.

Zaka zoposa 2500 zapitazo, Hippocrates, bambo wa mankhwala, adayamika kale kuchiritsa kwa zitsamba.

Masiku ano, mankhwala azitsamba ndi gawo limodzi la mankhwala azachikhalidwe monga mankhwala achi China omwe nthawi zambiri amagwiritsa ntchito mitundu ingapo yazomera popanga "potions".

Ngakhale akadali kutsutsana pazinthu zina, mankhwala azitsamba amadziwika ponseponse: akuti pafupifupi 25% ya mankhwala amapangidwa kuchokera kuzomera. Munthu wakhala akuyesera mankhwala ochokera kuzomera. Ena afika pokhala otchuka kwambiri pamankhwala amakono a pharmacopoeia: ndi anthu angati lero omwe akudziwa kuti morphine amachokera ku poppy, ndipo aspirin imachokera ku msondodzi?