Drug side effects
acarbose Side Effects
The reactions most often reported to the FDA for acarbose (also sold as Precose), with demographics, serious outcomes, and reporting trends.
Data updated 2026-05-15
- 3,736
- FAERS reports
Data from the FDA Adverse Event Reporting System (FAERS), 2004 to 2025. A FAERS report records a temporal association, not proof of cause. See our methodology for how figures are compiled and de-duplicated.
The most commonly reported side effects of acarbose come from 3,736 reports to the FDA, broken down here by frequency, patient demographics, and serious outcomes.
This page analyzes 3,736 reports to the FDA Adverse Event Reporting System (FAERS) for acarbose (Precose): the reactions reported most often, who reported them, serious outcomes such as hospitalization, and year-over-year trends. A FAERS report does not prove the drug caused the effect, and report volume tracks how widely a drug is used, not how likely an effect is for any one person. Educational information, not medical advice.
Total Reports
3,736
Reports Mentioning Death
310
8.3% of reports — not proof the medicine caused the death
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.
How to read these numbers
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.
Drugs With a Similar FAERS Report Volume
Other medications with a total FDA adverse-event report count closest to acarbose's 3,736.
Read our methodology - how this data is sourced, computed, and verified.