I roto i te 2009, Canada rāhuitia te whakamahi o te over-the-counter korokoro, me te makariri rongoā i roto i ngā tamariki e ono tau, me te i raro i te take o te āwangawanga e pā ana ki ngā mōrearea, me ngā painga unproven. Kua arahina te kino o te dextromethorphan (he over-the-counter korokoro rongoā) ki te whakakorehia i roto i te maha o nga whenua. kihai i kitea te koropiko intranasal kia. I roto i te wā poto whakamahi o acetaminophen kia whai hua i roto i te maimoatanga o te korokoro momona. Heoi, e kore e kitea te reira he tino whai hua ki te whakaiti i ngā tohu pēnei i te korokoro i roto i ngā tamariki.
te ihu