acarbose Side Effects
Also known as: Precose
Analysis of 3,736 adverse event reports submitted to the FDA from 2004 to 2025.
Total Reports
3,736
Death-Related
310
8.3% of reports
Hospitalizations
2,037
54.5% of reports
Top Indication
Diabetes Mellitus
Most Reported Adverse Reactions
Who Reports Side Effects
Gender Distribution
Age Distribution
Reporting Trend by Year
Reactions in Death Reports
Top reactions reported in 310 reports where death was an outcome. These are voluntarily reported and do not establish causation.
| Reaction | Reports |
|---|---|
| DEATH | 45 |
| CARDIAC ARREST | 35 |
| ACUTE KIDNEY INJURY | 34 |
| PNEUMONIA | 30 |
| LACTIC ACIDOSIS | 28 |
| DYSPNOEA | 22 |
| VOMITING | 20 |
| COMPLETED SUICIDE | 19 |
| METABOLIC ACIDOSIS | 17 |
| TACHYCARDIA | 17 |
| HAEMODYNAMIC INSTABILITY | 15 |
| HYPERKALAEMIA | 15 |
| RESPIRATORY FAILURE | 15 |
| ASTHENIA | 14 |
| CARDIO-RESPIRATORY ARREST | 14 |
| CARDIOGENIC SHOCK | 14 |
| CEREBROVASCULAR ACCIDENT | 14 |
| DEHYDRATION | 14 |
| FALL | 14 |
| UNRESPONSIVE TO STIMULI | 14 |
Reactions in Hospitalization Reports
Top reactions in 2,037 reports where hospitalization was an outcome.
| Reaction | Reports |
|---|---|
| HYPOGLYCAEMIA | 186 |
| BLOOD GLUCOSE INCREASED | 117 |
| NAUSEA | 117 |
| FALL | 104 |
| VOMITING | 93 |
| ACUTE KIDNEY INJURY | 91 |
| DIZZINESS | 91 |
| DRUG INTERACTION | 87 |
| LACTIC ACIDOSIS | 87 |
| DIARRHOEA | 81 |
| PNEUMONIA | 81 |
| ASTHENIA | 75 |
| DYSPNOEA | 69 |
| DIABETES MELLITUS INADEQUATE CONTROL | 67 |
| PYREXIA | 65 |
| CONSTIPATION | 61 |
| HYPERKALAEMIA | 60 |
| HYPERTENSION | 60 |
| HYPOTENSION | 56 |
| DECREASED APPETITE | 54 |
Nearby — Related Medications
What the FAERS Data Reveals About acarbose Side Effects
The FDA Adverse Event Reporting System (FAERS) contains 3,736 voluntary reports linked to acarbose and its brand equivalents (Precose), spanning 2004 through 2025. Of those, 310 (8.3%) listed death as an outcome and 2,037 (54.5%) involved hospitalization. The most common indication reported alongside adverse events was Diabetes Mellitus.
Demographic breakdowns help contextualize who is being exposed to the drug. Of reports with known sex, 51% were female and 49% male; age distribution skews toward 45-64, with 949 reports in that bracket. The single most reported reaction is hypoglycaemia with 269 submissions, followed by nausea and blood glucose increased.
FAERS is a signal-detection tool, not a scorecard. Reports are voluntary, and a single case may list multiple suspect drugs, so numbers above should not be read as incidence rates or per-patient risk. Widely prescribed drugs naturally accumulate more reports than niche therapies even when individual risk is low. These aggregates are useful for spotting patterns that merit further pharmacovigilance, not for choosing between medications. This page is for educational reference only and is not medical advice — speak with a licensed clinician about any side-effect concerns.
Read our methodology — how this data is sourced, computed, and verified.