Date: 05 Feb 2026
Metformin is one of the most widely used medicines for managing type 2 diabetes. It works well for lowering blood sugar, but a lot of people run into stomach troubles like nausea, bloating, or diarrhea, especially when they first start taking it.
If you’ve ever felt uneasy after taking metformin or worried you’ll get sick every time, this guide is for you.
We’ll talk in plain language about why these side effects happen, what you can do about them, and digestive support options available from Pharmily Limited in Kenya to help you feel better faster.
Metformin is a medication your doctor prescribes to help control blood sugar. It helps your body use insulin more effectively and lowers sugar release from the liver.
Unfortunately, it also works in the gut, especially early on, and that’s why people often get tummy upsets such as:
These symptoms usually start soon after beginning metformin and often get better within a few weeks as your body adjusts.
Here’s the scoop in simple terms:
Everyone responds differently, and some people have sensitive stomachs naturally.
Common symptoms include:
These are usually temporary and don’t mean something is seriously wrong—but they can be annoying.
Here are practical, easy steps you can take:
Taking metformin right after a meal can really help calm your stomach. Food slows down absorption and can reduce irritation.
If possible, your doctor may start you on a lower dose and increase it slowly to let your body adapt without harsh symptoms.
Some people do better with extended-release versions of metformin (if available), which release more slowly and may be gentler on the gut.
Here are some digestive support options you can order from Pharmily Limited that may help when you’re managing metformin-related stomach discomfort:
Certain foods can make nausea worse. Try:
Foods to enjoy:
Things to limit:
Also, sip water throughout the day to stay hydrated — dehydration can make nausea worse.
Most stomach side effects from metformin ease with time. But call a healthcare professional if you experience:
These could be signs you need a dose adjustment or a different treatment approach.
Metformin is an effective medicine for many people with diabetes, but stomach side effects can make it tough to stay consistent.
The good news? With simple changes like taking it with food, starting with a lower dose, and using supportive products like Pepto-Bismol chewables or Imodium Duo Action, you can make it much more comfortable.
Always check with your healthcare professional before adding new medicines or supplements. And if symptoms are stubborn or severe, your clinician can help guide the next steps.
Q. How long do metformin stomach side effects last?
Often symptoms improve within 1–3 weeks as your body adjusts. If they continue longer, talk to your clinician for advice.
Q. Can I take metformin at night to reduce nausea?
Yes! Some people find taking metformin with a meal or at dinner helps reduce morning nausea. Always follow your doctor’s instructions.
Q. Is it safe to stop metformin if it upsets my stomach?
No — don’t stop metformin without talking to a healthcare provider first. Stopping suddenly can affect your blood sugar control. Your doctor can help adjust your dose or suggest alternatives.