Caffeine's Effect on Stimulant Medications

Yeeeesssss! A very a big yes for me. I started taking ADHD medication when I was 30 years old . Can't drink more than a couple cups of tea without feeling manic #ExCoffeeAddict. Kelco, glad to relate to someone else who's taken Pepcid and noticed the same reaction. I never need Pepcid and the one week I took it, I was such an angry person, felt over medicated, and was extremely jittery. When I normally take my ADHD medication, I don't feel the medicine and I go about my day as a calm, collected person who can focus. With Pepcid, it was way worse than any day of not taking ADHD medicines.

It definitely does as does any acidic substance. Pepcid can increase the effectiveness as well. I usually avoid any acidic drink or food (coffee, citrus, soda, etc) for 30 minutes before and 30 minutes after taking adderall.