Can You Donate Blood If You Smoke? Cannabis, Nicotine, and More Can Smokers Donate Blood in India & its Side Effects? 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 Can You Donate Blood if You Use Cannabis? The Cannigma Can You Donate Plasma If You Smoke Weed? https: www.greenreliefhealth.com Smoking (or vaping) doesn't affect your ability to donate blood. Help us bust this myth by sharing our post.