What the label lists and what reports show

Potassium acetate side effects

Potassium acetate's FDA label lists its adverse reactions in its own words. FAERS holds 1,437 reports naming it through July 30, 2026; the reaction reported most often, leaving out the conditions it is used for, product-use terms and outcomes, is dyspnoea (108 reports).

Generic listed

Check it at the source: the potassium acetate FDA label on DailyMed (effective April 27, 2026, Hospira, Inc.); the FDA FAERS public dashboard.

What does the label list?

From the label: adverse reactions
Adverse reactions involve the possibility of potassium intoxication. The signs and symptoms of potassium intoxication include paresthesias of the extremities, flaccid paralysis, listlessness, mental confusion, weakness and heaviness of the legs, hypotension, cardiac arrhythmias, heart block, electrocardiographic abnormalities such as disappearance of P waves, spreading and slurring of the QRS complex with development of a biphasic curve and cardiac arrest. (See WARNINGS and PRECAUTIONS .)

Source: FDA drug label, Hospira, Inc., effective April 27, 2026 (SPL set c7eabefd-2781-439b-b8f4-cb3ea25a4720), via openFDA; the full label on DailyMed

What do FAERS reports show?

1,437 reports list potassium acetate among the medicines taken, each a report of something that happened, not proof the medicine caused it; 155 are coded as a death and 549 as a hospital stay. Counts follow how widely a medicine is used and watched, and they are not a measure of how risky it is. Of the 23 reactions below, none is named by the same term (in US spelling) in the label's adverse reactions, warnings or patient leaflet; a reaction the label does not name may still be there under another word, and a report does not show that the medicine caused it.

Reports received each year

The 25 most reported reactions

Dyspnoea108
Nausea107
Diarrhoea106
Fatigue101
Asthenia83
Drug Ineffective (a use or a product term, not a reaction)83
Dizziness82
Weight Decreased60
Headache59
Pain58
Vomiting57
Death (an outcome recorded in the report)56
Fall53
Pyrexia52
Pneumonia51
Blood Glucose Increased50
Arthralgia48
Oedema Peripheral47
Pain In Extremity47
Rash47
Back Pain45
Cough43
Weight Increased42
Decreased Appetite40
Blood Pressure Increased39

Source: FDA Adverse Event Reporting System (FAERS) via openFDA, reports through July 30, 2026; reactions as MedDRA preferred terms

What next?

Potassium acetate: the full record: label, generics, price, shortages, recalls
Report a side effect to the FDA: MedWatch
Side effects hub: the most reported medicines and reactions