A minor drug-drug interaction between Caffeine and Cimetidine is recorded in public interaction data. Severity reflects the source classification; it does not describe your individual risk. Do not start, stop, or change either medicine based on this page.

What “minor” means

A minor interaction is usually of limited importance for most people, though it is still worth being aware of.

What to do

Usually no change is needed - but ask your pharmacist if you notice anything unusual.

The two ingredients

Active ingredient

Caffeine

Uses, side effects, dosage →

Active ingredient

Cimetidine

Uses, side effects, dosage →

Caffeine + Cimetidine

What “minor” means

What to do

The two ingredients

Source