Interaction reference
GLP-1 receptor agonists with Caffeine
There is no documented pharmacokinetic interaction between caffeine and GLP-1 medications. The practical issue is symptom overlap: both can cause nausea, jitteriness, and an upset stomach.
Safe to drink coffee on a GLP-1 — but caffeine on a near-empty, slow-emptying stomach can worsen nausea and reflux, especially in the first weeks.
Also known as: coffee, tea, energy drinks, pre-workout
Per-GLP-1 breakdown
- Wegovysemaglutide 2.4 mgNo documented interaction
Mechanism: Caffeine is metabolized by CYP1A2; GLP-1 receptor agonists do not meaningfully inhibit or induce this pathway. No clinically relevant PK interaction is documented.
What to do: No dose change needed. Because GLP-1s slow gastric emptying, drinking coffee on an empty stomach can amplify nausea and acid reflux — have it with or after food during the first few weeks. Caffeine is also a mild diuretic, so stay hydrated to offset GLP-1-related constipation.
- ZepboundtirzepatideNo documented interaction
Mechanism: Caffeine is metabolized by CYP1A2; GLP-1 receptor agonists do not meaningfully inhibit or induce this pathway. No clinically relevant PK interaction is documented.
What to do: No dose change needed. Because GLP-1s slow gastric emptying, drinking coffee on an empty stomach can amplify nausea and acid reflux — have it with or after food during the first few weeks. Caffeine is also a mild diuretic, so stay hydrated to offset GLP-1-related constipation.
- OzempicsemaglutideNo documented interaction
Mechanism: Caffeine is metabolized by CYP1A2; GLP-1 receptor agonists do not meaningfully inhibit or induce this pathway. No clinically relevant PK interaction is documented.
What to do: No dose change needed. Because GLP-1s slow gastric emptying, drinking coffee on an empty stomach can amplify nausea and acid reflux — have it with or after food during the first few weeks. Caffeine is also a mild diuretic, so stay hydrated to offset GLP-1-related constipation.
- MounjarotirzepatideNo documented interaction
Mechanism: Caffeine is metabolized by CYP1A2; GLP-1 receptor agonists do not meaningfully inhibit or induce this pathway. No clinically relevant PK interaction is documented.
What to do: No dose change needed. Because GLP-1s slow gastric emptying, drinking coffee on an empty stomach can amplify nausea and acid reflux — have it with or after food during the first few weeks. Caffeine is also a mild diuretic, so stay hydrated to offset GLP-1-related constipation.
- FoundayoorforglipronNo documented interaction
Mechanism: Caffeine is metabolized by CYP1A2; GLP-1 receptor agonists do not meaningfully inhibit or induce this pathway. No clinically relevant PK interaction is documented.
What to do: No dose change needed. Because GLP-1s slow gastric emptying, drinking coffee on an empty stomach can amplify nausea and acid reflux — have it with or after food during the first few weeks. Caffeine is also a mild diuretic, so stay hydrated to offset GLP-1-related constipation.
Sources
- Ozempic prescribing information (opens in a new tab) — FDA accessdata