Calcium acetate Side Effects
Medically reviewed by Drugs.com. Last updated on Oct 26, 2022.
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:
- Abdominal or stomach pain
- dry mouth
- full or partial loss of consciousness
- incoherent speech
- increased urination
- loss of appetite
- metallic taste
- muscle weakness
- nausea or vomiting
- unusual tiredness
- weight loss
Incidence not known
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:
Incidence not known
For Healthcare Professionals
Applies to calcium acetate: compounding powder, injectable solution, oral capsule, oral liquid, oral tablet.
The most common adverse events were hypercalcemia, nausea, and diarrhea.[Ref]
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]
Very common (10% or more): Nausea (14%), diarrhea (13.2%)
Common (1% to 10%): Vomiting
Uncommon (0.1% to 1%): Constipation[Ref]
Common (1% to 10%): Pruritus[Ref]
Uncommon (0.1% to 1%): Soft tissue calcification
Postmarketing reports: Edema, weakness[Ref]
Postmarketing reports: Dizziness[Ref]
More about calcium acetate
- Check interactions
- Compare alternatives
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- Reviews (4)
- Drug images
- Dosage information
- During pregnancy
- Drug class: minerals and electrolytes
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- Drug Information
- Calcium acetate (Advanced Reading)
- Calcium Acetate Tablets
- Calcium Acetate Capsules
- Calcium Acetate Oral Solution
PhosLo, Phoslyra, Calphron, Eliphos
Related treatment guides
1. Cerner Multum, Inc. "UK Summary of Product Characteristics." O 0
2. "Product Information. Phoslyra (calcium acetate)." Fresenius Medical Care North America (2015):
3. "Product Information. PhosLo (calcium acetate)." Braintree (2001):
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.