Ba kamar magunguna na yau da kullun da ke neman ware ƙwayoyin cuta ba, tsirrai suna wakiltar tarin abubuwan da ke aiki tare, kuma daidai ne wannan ƙarin abubuwan da ke asalin asalin kaddarorin su. Atishoki (cynara scolymus) shine mafi kyawun misali tare da haɗin ƙwayoyin 4 (citric acid, maliki, succinic et cynaropicrine) waɗanda, waɗanda aka ɗauka a keɓe, ba sa aiki sosai, amma haɗin gwiwarsu yana da tasirin magunguna mai ƙarfi akan hanta da aikin biliary.

Zamu iya kaiwa ga cewa an yi tsirrai don warkar da mu tunda wasu ƙwayoyin ƙwayoyin cuta suna da alaƙa ta halitta tare da masu karɓa a cikin sel. Misali, morphine daga poppy (papaver somniferum) yana ɗaure ga abin da ake kira masu karɓar morphine na tsarin juyayi na tsakiya. Abubuwan da ke aiki na valerian (valerian officinalis) da masoya (passionflower jiki) haɗa tare da masu karɓar kwakwalwa don benzodiazepines, ƙwayoyin natsuwa. A wannan ma'anar, idan aka yi amfani da shi da kyau kuma ya dace da bukatunmu, tsirrai suna wakiltar magunguna na ainihi.