General
Precose (acarbose)
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Precose (acarbose)

With our quick and easy online prescription process, you can manage your health effortlessly — whether you need a first-time prescription for Precose (acarbose) or a refill of an existing one.

Licensed providers in all 50 states

Expert-guided, evidence-based treatments

Skip the trip to the doctor's office

Visit options

Costs shown are for the visit only. You'll pay for medication at your preferred pharmacy.

Video Visit

$25

Est. or $100 w/o insurance

Chat Visit

$30

w/o insurance

Most insurance accepted

Board-certified

No hidden fees

Available nationwide

What is Precose (acarbose)?

Precose is a prescription medication used to help control blood sugar after meals in adults with Type 2 diabetes. Unlike most diabetes medications that affect insulin production or sensitivity, Acarbose works directly in the digestive tract by blocking the enzymes that break down complex carbohydrates into glucose—slowing the absorption of sugar from food into the bloodstream. This reduces the sharp post-meal blood sugar spikes that are a hallmark of Type 2 diabetes. It must be taken with the first bite of each main meal to work effectively, and it doesn't cause hypoglycemia on its own.

Alpha-glucosidase inhibition

Blocks the intestinal enzymes that break down starches and complex sugars into absorbable glucose, slowing carbohydrate digestion and reducing the speed and magnitude of post-meal blood sugar rises.

Mealtime-specific action

Works exclusively in the GI tract during digestion, targeting the post-meal glucose spike rather than fasting blood sugar—making it particularly effective when combined with other medications that address baseline glucose levels.

No hypoglycemia risk alone

Because Acarbose doesn't stimulate insulin release or enhance insulin action, it won't cause low blood sugar on its own—though hypoglycemia can occur if combined with insulin or sulfonylureas, in which case glucose (not sucrose) must be used to treat it.

Virtual visit with clinician

Ongoing support, always available.

You’ll be supported by experienced clinicians who care for a wide range of health needs, from everyday concerns to more complex conditions.

Our clinicians track your progress over time and adjust your care as needed. If medication is prescribed, we’ll manage dosing and monitor for side effects. If lab testing is recommended, we review results and refine your plan accordingly. You’re never left to navigate care on your own.

All your care in one place. That’s the General Medicine difference.

We help you understand your options, connect you to the right clinicians, manage prescriptions, coordinate any needed evaluations, and keep an eye on your overall health along the way. It’s comprehensive care that looks at the full picture — your goals, your history, your lifestyle — and makes it simple to move forward with confidence.

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Frequently Asked Questions

When exactly should I take Precose?

Acarbose must be taken with the very first bite of each main meal — not before or after. It works by slowing carbohydrate digestion in real time as food passes through the intestine, so timing with meals is critical.

Will Precose cause low blood sugar?

Acarbose alone does not cause hypoglycemia because it doesn't stimulate insulin release. However, if low blood sugar occurs when combined with insulin or sulfonylureas, it must be treated with glucose — not sucrose — because Precose blocks sucrose digestion.

How does Precose fit into a broader diabetes treatment plan?

Precose specifically targets post-meal blood sugar spikes — which other medications like metformin or sulfonylureas address less directly. It's typically added to existing therapy rather than used as a standalone treatment.

What side effects might I experience?

Gas, bloating, diarrhea, and abdominal pain are the most common side effects — often significant early in treatment. They result from undigested carbohydrates fermenting in the large intestine and typically improve over time with dose adjustment.

Can I eat high-fiber foods while taking Precose?

Be mindful — high-fiber and high-carbohydrate meals can worsen GI side effects. Working with your clinician and a dietitian to balance carbohydrate intake helps manage both blood sugar and medication tolerability.
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