mindofmidwifery, ADN 1,419 Posts Specializes in ICU Stepdown. Jul 23, 2014 Caffeine supplements as in green tea extract and guarana. I have used caffeine pills in the past and that is WAY too much. As a previous poster stated, you'll pop them too much and I got to the point where I was taking 2-3 a day. Also got to the point where I needed caffeine or I would get really bad headaches, and what can help really bad headaches? Caffeine. Lol don't self medicate. Don't get dependent on caffeine, if you need it, use natural caffeine supplements, natural.