CBD Cannabis and voluntary blood donations: what is the rule? Justbob Cannabis Use and Blood Donation: Unmasking the Truth We all know smoking and vaping isn't great for your health. But it doesn't stop you from being a blood or plasma donor. Just make sure to wait one hour after donating Are vape pens, or e cigarettes, ever the better option? Ohio State Health & Discovery Can You Donate Plasma If You Smoke Weed? Get Facts Here! The Sanctuary