Can Weed Smokers Donate Plasma in the USA in 2024? Can You Give Blood If You Smoke? MD Spiro Weed And Donating Blood: All You Need To Know Moose Labs Can You Donate Plasma if You Smoke Marijuana? Myth: You can't donate blood if you smoke or drink. Fact: Smoking or occasional drinking doesn't automatically disqualify you. But avoid alcohol for at least 24 hours before donating to Severe bleeding linked to synthetic cannabinoid use Texas Poison Center Network