Ukuxoxa ngetyhefu ngaphandle kokubhekisa kwithamo kuyalahlekisa; Ibutane ecocekileyo ngokwendalo ayinayo ityhefu. Ngelixa i-butane ayinayo imetabolism emzimbeni womntu, ukuvezwa okuqhubekayo kumanqanaba aphezulu kunokungena kwinkqubo yokujikeleza, enokuthi iguqule imisebenzi eqhelekileyo yemetabolism.
Xa ibutane itsalwa, iya emiphungeni apho ithi ifunxe khona emva koko ichaphazele ingqondo, ukucinezela inkqubo ye-nervous central. Ukutyhileka okuncinci kunokubangela iimpawu ezifana nesiyezi, intloko ebuhlungu, kunye nokubona luzizi. Okuchasene, ukutyhileka okubalulekileyo kunokukhokelela ekubeni ungabikho zingqondweni.