Calcium Acetate Side Effects

Medically reviewed by Drugs.com. Last updated on Aug 1, 2024.

Applies to calcium acetate: oral capsule, oral solution, oral tablet.

Serious side effects of calcium acetate

Along with its needed effects, calcium acetate may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Check with your doctor immediately if any of the following side effects occur while taking calcium acetate:

More common

• abdominal or stomach pain
• confusion
• constipation
• depression
• dry mouth
• full or partial loss of consciousness
• headache
• incoherent speech
• increased urination
• loss of appetite
• metallic taste
• muscle weakness
• nausea or vomiting
• thirst
• unusual tiredness
• weight loss

Incidence not known

• swelling

Other side effects of calcium acetate

Some side effects of calcium acetate may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects.

Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:

More common

• diarrhea

Less common

• itching

Incidence not known

• dizziness
• weakness

For Healthcare Professionals

Applies to calcium acetate: compounding powder, injectable solution, oral capsule, oral liquid, oral tablet.

General

The most common adverse events were hypercalcemia, nausea, and diarrhea.^[Ref]

Metabolic

• Very common (10% or more): Hypercalcemia (16.3%)^[Ref]

Hypercalcemia was usually asymptomatic or manifested as constipation, anorexia, nausea, and vomiting, and in 0.1% of patients caused confusion, delirium, stupor, or coma.^[Ref]

Gastrointestinal

• Very common (10% or more): Nausea (14%), diarrhea (13.2%)
• Common (1% to 10%): Vomiting
• Uncommon (0.1% to 1%): Constipation^[Ref]

Dermatologic

• Common (1% to 10%): Pruritus^[Ref]

Other

• Uncommon (0.1% to 1%): Soft tissue calcification
• Postmarketing reports: Edema, weakness^[Ref]

Nervous system

• Postmarketing reports: Dizziness^[Ref]

Further information

Calcium acetate side effects can vary depending on the individual. Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

Some side effects may not be reported. You may report them to the FDA.

Medical Disclaimer