Acabose

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Acabose

Treatment option: Diabetes Mellitus

Medically reviewed

Marina Burgos

Last updated on 22/12/2025

This page provides general, reference-level information compiled from official medical sources. It is not a substitute for professional medical advice, diagnosis, or treatment. For decisions about your health, please consult a qualified healthcare professional.

Overview of Acabose

Quick Facts

Property Description
Active Ingredient Acarbose (INN)
Form Tablet
Pharmacological Class Alpha-Glucosidase Inhibitor
General Purpose Managing post-meal blood sugar levels
Origin Semi-synthetic (Microbial derived)

What Type of Medicine is Acarbose?

Acarbose is the generic active pharmaceutical ingredient, identified by its non-proprietary name (INN), and is formally classified as an Alpha-Glucosidase Inhibitor. This classification signifies a medicine designed to affect the way the body handles carbohydrates. The compound is considered semi-synthetic, as it is an oligosaccharide derived from the fermentation processes of the microorganism, Actinoplanes utahensis. This pharmacological approach differentiates it from therapies that target insulin production or sensitivity.

Form and Composition

Acarbose is typically supplied as a tablet, which is its dosage form, and it is intended for oral intake. It is manufactured as a single-ingredient product, meaning the only therapeutic substance present is Acarbose. The tablet's composition includes the active ingredient alongside a solid base of inactive excipients necessary to form the stable oral pill.

What is the General Purpose of Acarbose?

The general purpose of Acarbose is to help people maintain better control over their blood sugar levels by addressing post-meal sugar spikes. It achieves this by acting as a molecular "brake" on certain digestive enzymes in the intestine. This action effectively slows down the breakdown of complex carbohydrates into simple sugar (glucose), delaying the sugar's entry into the bloodstream. This specific effect is critically important for managing the rapid rise in glucose that occurs after eating, which is a key challenge in maintaining overall metabolic balance.

What side effects are possible with Acabose?

Possible Side Effects and Safety Information

Official regulatory documents classify the safety profile of Acarbose with a predominant focus on Gastrointestinal Disorders.

Frequency Classification (Based on SmPC/FDA) System Organ Class Documented Adverse Reactions
Very Common Gastrointestinal Disorders Flatulence, Diarrhea, Abdominal pain/Gastrointestinal pains
Uncommon Hepatobiliary Disorders Increase in transaminases (ALT/AST elevation)
Rare Hepatobiliary Disorders Jaundice, Hepatitis
Frequency Not Known Hepatobiliary Disorders Fulminant hepatitis (including fatal outcomes)
Frequency Not Known Gastrointestinal Disorders Subileus/Ileus (Intestinal obstruction/sub-obstruction)

These common gastrointestinal effects are expected outcomes of the medicine's mode of action and are generally documented to decrease in frequency and intensity with continued use over time. Uncommonly, elevations in liver enzymes have been reported, and monitoring is sometimes recommended during the initial 6 to 12 months of therapy, as enzyme changes have been more frequently observed during this period.

When Acarbose is co-administered with other blood-glucose-lowering medicines, such as insulin or sulfonylureas, the potential for hypoglycemia is introduced. A high-level safety constraint noted in regulatory documents is that common table sugar (sucrose) is ineffective for rapid hypoglycemia correction; only simple glucose (dextrose) should be used.

Official safety profiles define specific restrictions for use. Acarbose is contraindicated in individuals with severe renal impairment (creatinine clearance less than 25 mL/min), cirrhosis, or other forms of severe hepatic impairment. Its use is also restricted in patients with pre-existing chronic intestinal disorders, such as inflammatory bowel disease or partial intestinal obstruction, or conditions that may be aggravated by increased intestinal gas formation.

Overdose and Emergency Response

Overdose and When to Seek Help

This section describes the officially documented manifestations and required emergency procedures for Acarbose overdose, based strictly on government regulatory labeling.


Documented Overdose Manifestations

An acute overdose of Acarbose taken alone is primarily characterized by the exaggeration of gastrointestinal symptoms. Regulatory labeling documents the principal manifestations as flatulence, diarrhea, and abdominal discomfort.

Critically, the official prescribing information states that systemic effects such as hypoglycemia (dangerously low blood sugar) are not expected when Acarbose overdose occurs in the absence of concurrent insulin or sulfonylurea therapy. The effects remain localized to the digestive tract.


Required Emergency Actions

Seeking Medical Attention: Urgent medical help must be sought if the overdose leads to severe or persistent gastrointestinal symptoms that cannot be managed at home and require professional supportive care.

Specific Management Procedure: There is no specific antidote known or listed in the regulatory documents for Acarbose overdose. However, the officially described procedural step in managing an acute overdose is the immediate withholding of all food and drink containing carbohydrates for 4 to 6 hours.

Therapeutic Uses of Acabose

Acarbose is commonly used to help with managing symptoms related to systemic imbalance in adults with type 2 diabetes mellitus, which is a condition characterized by periods of heightened symptoms. This therapeutic domain is applied across domains where additional symptomatic support is needed by patients.

Acarbose is considered relevant as an adjunct to diet and exercise to contribute to easing the overall symptom load for patients with this condition. It may be part of symptomatic management applied in clinical settings that involve acute or unstable symptom patterns. Acarbose may assist with reducing symptoms associated with acute or episodic changes, such as those related to postprandial hyperglycemia.

It is commonly used to help with managing symptoms related to physical discomfort in conditions involving inflammatory or irritative processes. It is applied in addressing symptom clusters that may become intense or disruptive. The supportive role helps maintain a sense of stability when symptoms are more noticeable. It assists with maintaining functional stability during episodes of heightened discomfort.

Quick Fact: Relevant for Postprandial Symptom Burden

Eligibility and Restrictions for Use

Acarbose is generally permitted for use in adults diagnosed with Type 2 Diabetes Mellitus. It is intended to be used as an addition to diet and exercise.

Contraindications (Who must NOT use Acarbose):

Use is strictly prohibited in patients with the following conditions, as stated in official regulatory labeling:

  • Known hypersensitivity or allergy to acarbose.
  • Diabetic ketoacidosis.
  • Cirrhosis or severe hepatic impairment (severe liver disease).
  • Inflammatory bowel disease, colonic ulceration, or chronic intestinal diseases associated with marked disorders of digestion or absorption.
  • Any degree of intestinal obstruction or a predisposition to it.
  • Medical conditions that could worsen due to increased gas formation in the intestine (e.g., larger hernias).

Restricted or Not Recommended Use:

  • Age: Use is not recommended in children and adolescents under 18 years due to unestablished efficacy and safety.
  • Kidney Function: It is not recommended for patients with severe renal impairment (creatinine clearance < 25 mL/min/1.73m^2) as it has not been studied in this population.
  • Pregnancy/Lactation: Acarbose should not be administered during pregnancy or breastfeeding due to a lack of clinical data on exposed pregnancies and the risk of drug-induced effects on the nursing infant.

What should I know about interactions with other medicines?

Acarbose Interactions with Other Medicines and Products

This section summarizes officially documented interaction patterns for Acarbose based on government regulatory information.


Documented Pharmacodynamic and Efficacy Interactions

Interaction Type Interacting Substance/Class Official Regulatory Statement
Pharmacodynamic Enhancement Other Oral Antidiabetic Agents (e.g., Sulfonylureas, Insulin) Co-administration results in an additive effect that increases the potential for hypoglycemia.
Efficacy Antagonism Digestive Enzyme Preparations (e.g., Pancreatin) May decrease the therapeutic effect of Acarbose and should not be administered concomitantly.
Efficacy Antagonism Intestinal Adsorbents (e.g., Activated Charcoal) May decrease the therapeutic effect of Acarbose and should not be administered concomitantly.

Documented Pharmacokinetic and Systemic Exposure Interactions

Interacting Substance Official Regulatory Statement on Exposure
Digoxin Acarbose may affect digoxin bioavailability, decreasing mean Cmax and AUC, and may require dose adjustment.
Metformin Reduces the peak plasma level (Cmax) of metformin, but is generally considered to have little, if any, clinically significant interaction.
Alcohol Consumption may cause severe low blood sugar (hypoglycemia) in diabetic patients.

Population-Specific Interaction Notes

In individuals with Severe Renal Impairment (creatinine clearance less than 25 mL/min/1.73m²), there is a significant increase in systemic exposure to the parent drug, Acarbose, with documented accumulation. This finding contributes to the contraindication in this population.

Mechanism of Action

How Acarbose Works

Acarbose exerts its action entirely within the gastrointestinal tract; the mechanism is non-systemic. The primary mechanism involves modulating the rate at which dietary carbohydrates are processed and absorbed.


Targeted Inhibition of Digestive Enzymes

Acarbose is classified as a competitive and reversible inhibitor of alpha-glucosidase enzymes, a complex situated on the brush border of the small intestine . These enzymes, notably sucrase and glucoamylase, are essential for the final breakdown of complex carbohydrates into absorbable glucose. By acting as a structural mimic of the natural substrates, Acarbose temporarily blocks the enzyme's active site, thereby delaying the hydrolysis process.


Modulation of Glucose Absorption Kinetics

The inhibition of digestive enzymes directly modifies the kinetics of intestinal glucose absorption. This molecular delay causes glucose to be released into the bloodstream gradually and over an extended period, rather than in a rapid surge. The physiological outcome involves a reduction in the rate and magnitude of the postprandial glucose excursion, thereby delaying the peak concentration of glucose in the bloodstream.


Mechanistic Constraints

The drug's action is confined to complex carbohydrate breakdown; it is ineffective against monosaccharides (like pure glucose) which do not require alpha-glucosidase for absorption. A direct physiological consequence of the inhibition is the delivery of undigested carbohydrates to the colon, where their bacterial fermentation occurs.

Dosage and Administration Information

How to Use Acarbose

Acarbose is an oral tablet. The proper use of this medicine is fundamentally linked to meal timing and a prescribed diabetic diet.

Administration and Timing

The tablet must be taken three times a day (t.i.d.) with the main meals. It is crucial to take the dose at the start (with the first bite) of the main meal. The tablets can be swallowed whole with a small amount of liquid or chewed with the first mouthful of food.

Official Dosing Rules

Population Initial Dose (t.i.d.) Maintenance Dose (t.i.d.) Maximum Dose (t.i.d.)
Adults 25 mg 50 mg to 100 mg 100 mg (or 50 mg if 60 kg)

Dose Adjustment: Doses are adjusted at 4 to 8 week intervals based on monitoring results. Use in children and adolescents is not generally recommended due to lack of established safety and efficacy data.

Important Procedural Requirements

  • Missed Dose: If a dose is forgotten or if the meal is completed, do not take the missed dose between meals. The patient must wait until the next scheduled meal and continue the regular schedule. Dosing should never be doubled.
  • Hypoglycemia: Should low blood sugar occur, it must be treated using oral glucose (dextrose). Ordinary table sugar (sucrose) is not effective for correction due to the medicine's mechanism of action.

Recent Clinical Evidence

Research Evidence / Overview of Studies for Acarbose

This overview summarizes the formal clinical research and study types that have examined Acarbose, strictly avoiding personalized advice, dosing instructions, or safety information.

Evidence for Use in Type 2 Diabetes Mellitus

Research exploring how symptoms change over time in adults with Type 2 Diabetes Mellitus primarily consists of Randomized Controlled Trials (RCTs) and comprehensive meta-analyses. Studies explored outcomes, focusing on key physiological measurements like glycated hemoglobin (HbA1c), fasting blood glucose (FBG), and especially the postprandial glucose (PPG).

Data show patterns related to the measurement values of these key glucose biomarkers over the short and intermediate observation periods (ranging up to three years). Researchers also examined long-term outcomes related to cardiovascular health. However, findings were mixed when observing cardiovascular outcomes in these patient groups; some studies described patterns, while others did not. Consequently, data are still emerging and certainty remains low in this area.

Evidence for Use in Impaired Glucose Tolerance (Pre-Diabetes)

Acarbose was evaluated in research contexts involving the diagnosis of Impaired Glucose Tolerance (IGT). Large-scale, long-term RCTs were conducted for this indication, primarily examining the incidence of progression to a formal Type 2 Diabetes diagnosis over several years. The research highlights changes measured during the study period related to the rate of progression to Type 2 Diabetes.

The permanency of the patterns related to this progression is not fully established by the current evidence, and research is ongoing. Research describes that new Type 2 Diabetes cases were observed in some studies after the study drug was stopped. Furthermore, comparative evidence is lacking regarding cardiovascular events in IGT patients who do not have pre-existing coronary heart disease.

What the Research Indicates is Still Uncertain

Certainty remains low for long-term cardiovascular outcomes in established Type 2 Diabetes, as findings were mixed across different analyses. Additionally, high rates of participant discontinuation in certain long-term RCTs, typically related to tolerability, may have impacted the final data analysis. Data for certain groups remain insufficient, and limited information is available to fully understand differences in outcomes between diverse ethnic subgroups.

Key Studies & References The effects of acarbose treatment on cardiovascular risk factors in impaired glucose tolerance and diabetic patients: a systematic review and dose–response meta-analysis of randomized clinical trials

Frequently Asked Questions (FAQ)

Common questions about Acarbose (FAQ)

Q: Is the effect of Acarbose instant, or does it build up over time?

A: Acarbose works locally in the intestine to delay carbohydrate absorption for the meal it is taken with. Because of this mechanism, the drug's effect on blood sugar occurs with each mealtime dose. Official information suggests it acts on each meal, rather than requiring days or weeks for therapeutic accumulation. Only minimal amounts of the active substance reach the bloodstream, with peak blood concentrations reported approximately one hour after administration.


Q: How quickly does Acarbose start working after the first dose?

A: Acarbose begins to work immediately upon reaching the small intestine. Official product information describes that the medicine is administered with the first bite of a meal because its purpose is to block certain enzymes from breaking down the carbohydrates in that specific meal. This action ensures the drug is present where and when it is needed to slow sugar absorption.


Q: What does official information say about long-term side effects of Acarbose?

A: Regulatory documents indicate that the most common gastrointestinal side effects, such as gas and diarrhea, are expected and are documented to decrease over time with continued treatment. Because uncommon elevations of liver enzymes have been reported, official product information notes that monitoring of liver enzymes is often advised during the initial 6 to 12 months of therapy.


Q: Are there specific foods or beverages that should be avoided when taking Acarbose?

A: Official warnings highlight that the use of regular cane sugar (sucrose) should be approached with caution, particularly for treating low blood sugar, as Acarbose prevents its proper digestion, which can worsen gas, pain, and diarrhea. Additionally, alcohol consumption is officially linked to an increased potential for severe low blood sugar (hypoglycemia) in diabetic patients.


Q: What are the common brand names for Acarbose in different regions?

A: Acarbose is the generic name for the active ingredient. Common international brand names for the medicine include Glucobay (widely used in Europe and Asia) and Precose (used in the US). Other brand names, such as Prandase, are available in various regions, in addition to many generic versions.


Q: How is Acarbose different from other common diabetes medications?

A: Acarbose is classified as an Alpha-Glucosidase Inhibitor and differs from many other diabetes drugs because it works almost entirely locally in the gut by delaying carbohydrate breakdown. This mechanism contrasts with drugs like Metformin, which primarily targets the liver, or Sulfonylureas, which primarily target the pancreas, as Acarbose does not enter the bloodstream substantially.


Q: What is the meaning of the reported side effect 'pneumatosis cystoides intestinalis'?

A: This is a rare adverse event reported by regulatory agencies after the drug was made available to the public. It is a technical term that refers to the presence of gas-filled cysts that form within the wall of the intestine. Official guidance indicates that if this condition is suspected, discontinuation of the medication is advised to allow for proper diagnosis.


Q: Does Acarbose cause weight gain or is it associated with weight changes?

A: Regulatory documents do not list weight gain as a common side effect of Acarbose. Official information and clinical studies generally suggest that the drug is associated with a neutral effect on body weight or, in some cases, a tendency toward minor weight loss. It is not, however, marketed or prescribed as a primary weight loss drug.


Q: Can certain blood pressure medications or diuretics interact with Acarbose?

A: Regulatory information notes that certain medications, particularly some thiazide diuretics, may potentially decrease the effect of Acarbose by impacting blood sugar control. Official information states that when co-administering these types of drugs, closer monitoring of blood glucose levels may be necessary to maintain control.


Q: Does Acarbose interact with common non-prescription pain relief medicines?

A: Official safety warnings indicate a need for caution when co-administering any non-prescription medicines, including common pain relievers. This is due to the possibility that some over-the-counter agents may affect blood sugar levels or potentially mask the symptoms of low blood sugar.


Q: What is the general information about Acarbose use in older adults (geriatric patients)?

A: Limited clinical research has shown that Acarbose use in older adults, such as those over 65, does not typically cause different side effects compared to younger adults. Official information notes that careful dose titration may be necessary in the elderly population due to the potential for age-related decline in kidney function, which can affect the body's handling of the drug.


Q: Why is Acarbose not prescribed for patients with diabetic ketoacidosis (DKA)?

A: Acarbose is contraindicated in Diabetic Ketoacidosis (DKA) because this is a medical emergency that requires the immediate, systemic action of insulin to rapidly correct dangerous blood sugar and ketone levels. Since Acarbose works only by delaying carbohydrate absorption in the gut, it is deemed ineffective in addressing the acute, severe metabolic imbalance of DKA.

How should Acabose be stored and disposed of?

How to Store and Dispose of Acarbose

Acarbose tablets must be stored at Controlled Room Temperature, specifically between 20 C and 25 C (68 F and 77 F). The product must be protected from moisture and kept in its original container, which should be tightly closed.

For safety, the medication must be stored out of the sight and reach of children.


Disposal Instructions

Unused or expired Acarbose should be disposed of by following local regulations.

Official guidelines state that the product must not be disposed of via wastewater or general household waste. When available, the medication should be taken to an authorized medicine take-back program or collection location.

Attention! Always consult to a doctor or pharmacist before using pills or medicines.

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