Active Ingredient

Acarbose

Acarbose is a medication commonly used to help manage blood sugar levels in adults. It is particularly useful for those with type 2 diabetes.

By slowing down the digestion of carbohydrates in the intestines, Acarbose helps to reduce the rise in blood sugar levels after meals.

Written By Douglas C. Goldberg, MD

Reviewed By Philip Schein, MD

Last Updated 28 Nov 2025

Available Acarbose Brands

Precose

Strengths 25 mg, 50mg

Acarbose Uses

Acarbose is primarily used to control blood sugar levels in individuals with type 2 diabetes.

Management of type 2 diabetes
Helps control blood sugar spikes after meals
May be used in conjunction with other diabetes medications

How Acarbose Works

Acarbose works by inhibiting enzymes in the intestines that break down carbohydrates into sugar. This action slows the absorption of sugar into the bloodstream.

By delaying carbohydrate digestion, Acarbose helps to prevent spikes in blood sugar levels after eating.

It belongs to the class of drugs known as alpha-glucosidase inhibitors.

Common side effects of Acarbose

While not everyone experiences side effects, some people may encounter mild and temporary issues when taking Acarbose.

Stomach pain
Diarrhea
Gas
Bloating
Nausea
Indigestion
Rash

If you experience serious or persistent symptoms, it is important to contact your doctor.

Monitor your blood sugar levels regularly while using Acarbose.
Avoid consuming large amounts of alcohol as it may affect blood sugar control.
Inform your doctor of any other medications or supplements you are taking to avoid interactions.
Do not take Acarbose if you have certain digestive conditions without consulting a doctor.
Report any unusual symptoms to your healthcare provider promptly.

Always consult your doctor for personalized medical advice.

Frequently Asked Questions

What does Acarbose do?

Acarbose helps control blood sugar levels by slowing the digestion of carbohydrates in the intestines.

How long does it take for Acarbose to work?

Acarbose begins to work with the first meal you take it with, helping to manage blood sugar spikes after eating.

Is Acarbose safe for long-term use?

Acarbose can be used long-term under the supervision of a healthcare provider to help manage type 2 diabetes.

Can Acarbose be taken with other diabetes medications?

Yes, Acarbose can be used in combination with other diabetes medications, but always under medical guidance.

Does Acarbose interact with any foods or drinks?

While taking Acarbose, you should monitor your alcohol intake as it can affect blood sugar levels.