Can I drink coffee while taking stomach medicine?

Reviewed by Yoshinori Abe, MD

Internal Medicine

Drinking coffee while taking stomach medicine can reduce the medication's effectiveness and worsen symptoms. Coffee increases stomach acid production, relaxes the lower esophageal sphincter, and may interfere with how your body absorbs certain drugs, including acid reducers like proton pump inhibitors (PPIs) and H2 blockers. This can lead to heartburn, acid reflux, or delayed relief. To minimize interactions, experts generally recommend waiting at least 30–60 minutes after taking stomach medication before drinking coffee, and always consulting your doctor for guidance tailored to your condition.

If you're experiencing ongoing stomach discomfort, acid reflux, or uncertainty about how your medication is working, don't guess your way through it. Take a free, instant, online symptom check to better understand what's causing your symptoms, identify possible conditions, and get clear guidance on your next steps—so you can talk to your doctor with confidence.

Reviewed for medical accuracy: 07/15/2026

Important Next Steps

Discover if coffee is causing stomach upset Learn what’s behind your stomach pain See if symptoms need medical attention Find over-the-counter relief for stomach upset Find a doctor for stomach problems Understand home remedies for stomach discomfort Discover likely causes of stomach pain

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Explanation

Coffee can have several effects on the stomach and digestive system. It can increase the production of stomach acid, which might not be ideal if you are taking medicine for stomach issues. According to the references provided, coffee can affect the lower esophageal sphincter, potentially leading to discomfort or reflux.

Key Points:

Stomach Acid: Coffee can increase stomach acid, which may interfere with the effectiveness of stomach medications.
Esophagus Pressure: Caffeine in coffee can lower the pressure in the esophagus, possibly causing heartburn or reflux.
Individual Differences: People may react differently to coffee, so it's important to pay attention to how your body responds.

If you are taking stomach medicine or experiencing digestive discomfort, you can use a free AI symptom checker to better understand your symptoms. It's also a good idea to talk to your doctor about whether coffee is okay for you. They can give you advice based on your specific health needs and medication.

(References)

Nehlig A. (2022). Effects of Coffee on the Gastro-Intestinal Tract: A Narrative .... Nutrients, 35057580.
Lohsiriwat S, Puengna N, & Leelakusolvong S. (2006). Effect of caffeine on lower esophageal sphincter pressure .... Diseases of the esophagus : official journal of the International Society for Diseases of the Esophagus, 16722996.
Al Shboul S, Maloul O, Al-Trad H, Maloul Y, AlHarahsheh W, Mosallam D, et al. (2024). Self-Reported Gastrointestinal Symptoms Associated with .... Medicina (Kaunas, Lithuania), 39336561.

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