Metformin 500 mg side effects will be discussed in the following article. This medication is available in the form of 500 mg tablets. The daily dose will depend on your condition, and your reaction to this medication. Your doctor will tell you how much to take. We will tell you more about this medication and its side effects.


Metformin is effective in controlling blood sugar levels. It is used by people who have diabetes type II. It can be combined with other prescription medications or insulin, but this medication cannot be used in people who have diabetes type I. Metformin can be used for other purposes, but that depends on a particular case.

If you are allergic to any component of this medication, you should not use it. Tell your doctor if you have ever had any type of allergy to medications. Allergic reactions are possible even in people who have never had any kind of allergy.

If you are going to have CT scan or x-ray (and the dye will be injected directly into your veins), stop taking Metformin. Talk to your doctor about this.

If you have any liver disease or hear disease, your doctor has to be familiar with this.

Lactic acidosis is possible in people who use this medication. If this happens to you, call your doctor immediately. The symptoms include:

● Weakness
● Muscle pain
● Dizziness
● Difficulty breathing
● Numbness
● Pain in the abdomen
● Vomiting and nausea
● Slow heart rate
● Feeling tired

This condition can be life threatening. It usually happens to people who have congestive heart failure, kidney or liver disease, or to those who consume a lot of alcohol. Before you start taking this medication, you have to talk to your doctor about the risk.

What Are the Side Effects of Metformin?

Allergic reactions are possible with this medication. If you experience any sign of allergy, call your doctor immediately. These symptoms include:

● Swelling of face
● Swelling of tongue
● Swelling of lips
● Swelling of throat
● Difficulty breathing
● Skin rash
● Hives

Metformin can cause serious adverse reactions, like:

● Short breath
● Fever
● Flu symptoms
● Body aches
● Swelling
● Unexplained weight gain

Less serious side effects usually include:

● Mild nausea
● Headache
● Weakness
● Diarrhea
● Stomach pain
● Gas

Do not change the dose on your own. If you experience any of the side effects mentioned here, contact your doctor immediately.