How Soon Can You Drink Coffee After Taking Omeprazole?

Are you someone who suffers from GERD or heartburn symptoms and take Omeprazole? If the answer is yes, then you might have been puzzled about whether it’s safe to drink coffee while taking omeprazole. In October of 2022 until end of year, I started having nausea episodes soon after eating rich meals. I found out in January of 2023 that I had ulcers and was advised to take Omeprazole for a few weeks. Let’s delve into this question because it’s a damn good one for those who love and enjoy our daily mug of joe but are taking omeprazole.

But First, What Is Omeprazole?


It’s God’s gift to us older folk. All joking aside, Omeprazole is a proton pump inhibitor that reduces stomach acid production by blocking the acid-producing cells. It’s usually taken once a day before a meal.

However, studies have shown that omeprazole might reduce the absorption of certain foods and beverages, including coffee and tea, due to its effect on stomach acid production. Therefore, drinking coffee immediately after taking omeprazole might not provide you with the full benefits of caffeine and coffee.

So How Soon Can You Drink Coffee After Consuming Omeprazole?

According to Dr. Brian Lacy, a gastroenterologist and professor of medicine at Geisel School of Medicine at Dartmouth, it’s best to wait at least 30 minutes to an hour after taking omeprazole before drinking coffee.  My own GI advised me to wait up to a full hour if possible before eating or drinking breakfast.

This time allows omeprazole to reduce stomach acid production and helps caffeine and coffee to be fully absorbed in the body. However, this time might vary depending on your body and the dosage of omeprazole you’re taking.

Apart from waiting for a specific time after taking omeprazole, you can also try switching to decaf coffee or tea, which have lower caffeine levels than regular coffee and tea. Moreover, you can reduce the amount of coffee you drink or try drinking it with milk or cream, which might help reduce the acidity of coffee and protect your stomach from the effects of omeprazole.

It’s important to note that omeprazole might interact with other substances and medications, including coffee. It might also cause side effects, such as headache, diarrhea, and nausea. Therefore, if you experience any of these symptoms, it’s advisable to talk to your doctor and adjust your medication and lifestyle accordingly.

I personally quit drinking coffee to heal my ulcers as fast as possible but would occasionally crave a cup of coffee, so the omeprazole really helped.

How Does Omeprazole Help Those With GERD or Ulcers?

Omeprazole is called a proton pump inhibitor and is effective in treating GERD and ulcers because it blocks the acid-producing cells of the stomach. This helps prevent excess production of stomach acids, which can cause burning sensations, heartburns, and other symptoms associated with acid reflux or ulcers. Furthermore, omeprazole might also help reduce inflammation in the lining of the stomach, which can help reduce pain and discomfort.

How Long Does Omeprazole Take To Metabolize Fully?

Omeprazole usually takes around 4 hours to metabolize fully and be eliminated from the body. Therefore, it’s best to wait at least 4 hours after taking omeprazole before drinking coffee or tea.

Can I Drink Coffee After Taking Omeprazole?

Yes, you can drink coffee after taking omeprazole as long as you wait at least 30 minutes to an hour after taking the medication. Also, try switching to decaf or reducing your caffeine intake and add in some milk or cream for extra protection. Finally, make sure that you consult with your doctor before making any changes to your medication or lifestyle.

What Should You Not Drink With Omeprazole?

It’s best to avoid drinking alcohol, grapefruit juice, and other citrus juices when taking omeprazole as they can interfere with the medication’s effectiveness.

In addition, drinking caffeinated beverages and carbonated soda can aggravate the symptoms of acid reflux, so they should be avoided if you are taking omeprazole. Herbal teas and green tea may also cause stomach upset, so it’s best to limit your intake of these beverages. Finally, it’s always a good idea to talk to your doctor about any dietary changes you want to make when taking omeprazole.

Drinking coffee while taking omeprazole is possible with some precautions. By waiting at least 30 minutes to an hour after taking omeprazole, you can drink regular or decaf coffee without any problems.

What are the Long Term Effects of Drinking Coffee for those who Suffer from GERD and Ulcers?

Long-term effects of drinking coffee for those who suffer from GERD and ulcers can vary depending on individual cases.

Research suggests that individuals with GERD and ulcers should avoid caffeinated beverages, as the stimulant can aggravate their symptoms. Also, people with GERD and ulcers should cut back on coffee consumption or switch to decaf in order to reduce their risk of further damage to the esophagus and stomach lining.

Furthermore, those with GERD should watch out for other substances that can irritate the stomach, such as alcohol and carbonated soda. Finally, people with GERD should consult with their healthcare provider to find an appropriate treatment plan for their condition.


Taking omeprazole for acid reflux doesn’t necessarily mean giving up on coffee or other caffeinated beverages.  I know this from personal experience as I am introducing coffee back into my diet after being diagnosed with ulcers.

However, it’s important to be mindful of the timing and dosage of omeprazole and how it might affect your caffeine fix. Waiting at least 30 minutes to an hour after taking omeprazole before drinking coffee, switching to decaf coffee or tea, and reducing the amount of coffee or adding milk or cream might help you savor your coffee without harming your stomach.

As always, it’s crucial to consult your doctor and follow their recommendations for a safe and healthy lifestyle.