CBD oil can also be taken in a capsule or gel cap like a vitamin or supplement. The effect, duration and dosing are similar to that of edibles. The effects of orally consumed cannabis can last 4 to 6 hours—considerably longer than inhaled cannabis. But the onset of effects is much slower (30-90 minutes) than for inhaled cannabis or sublingual sprays. The slow onset and longer duration make capsules/edibles well suited for treating chronic conditions that require a steady dose of medicine throughout the day. The biggest risk with orally administered cannabis is overconsumption. The longer time of onset makes it more difficult to titrate dosage. One should proceed cautiously by taking a small dose of an capsule/edible and waiting at least an hour before deciding if more is needed. Oral consumption may not be appropriate for someone suffering from nausea, vomiting or lack of appetite.