Canna~Fangled Abstracts Dronabinol increases pain threshold in patients with functional chest pain: a pilot double-blind placebo-controlled trial. 2016 Jan 29. doi: 10.1111/dote.12455. Malik Z1, Bayman L2, Valestin J2, Rizvi-Toner A2, Hashmi S2, Schey R1,2. Author information Abstract…Freedom WaresJanuary 29, 2016