FDA approves first drug derived from marijuana to treat epilepsy

For years, parents of children with severe forms of epilepsy have touted the benefits of treating them with cannabis oil. Now, the U.S. Food and Drug Administration has approved a medication derived from the plant. As Allison Vuchnich reports, Canadians are watching closely to see how well it works.

• N.S. parents present petition calling for cannabis oil meds coverage for children