Tirohia te wāhanga i raro nei, kātahi ka whakautu i te pātai i muri mai i te reo kotahi me te wāhanga:  Passage: Ko nga Isomers e rereke ana nga taonga rongoa he mea noa; hei tauira, te whakanoho i nga roopu methyl. I roto i nga xanthines whakakapi, te theobromine, i kitea i roto i te tiakarete, he vasodilator me etahi paanga e rite ana ki te kawhe; engari, ki te neke tetahi o nga roopu methyl e rua ki tetahi atu waahi i runga i te matua mowhiti e rua, ko te isomer he theophylline, he maha nga painga, tae atu ki te bronchodilation me te mahi anti-inflammatory. Ko tētahi atu tauira o tēnei ka puta i roto i ngā rongoā whakaongaonga e hāngai ana ki te phenethylamine. Ko te Phentermine he pūhui kore-chiral me te ngoikore o te mahi i te amphetamine. Ka whakamahia hei rongoa whakaiti i te hiahia kai me te ngawari, kaore ranei i te whakaongaonga. Heoi anō, he rerekē te whakatakotoranga ngota e puta ai te dextromethamphetamine, he kaha ake te whakaongaonga i te amphetamine.  Patai: He aha te mea kei roto i te tiakarete e whai pānga ana ki te tiakarete?
teobromine