PhosLo Side Effects
Generic Name: calcium acetate
Note: This document contains side effect information about calcium acetate. Some of the dosage forms listed on this page may not apply to the brand name PhosLo.
For the Consumer
Applies to calcium acetate: oral capsule, oral solution, oral tablet
Along with its needed effects, calcium acetate (the active ingredient contained in PhosLo) 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
- 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
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
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]
1. "Product Information. Phoslyra (calcium acetate)." Fresenius Medical Care North America, Lexington, MA.
2. Cerner Multum, Inc. "UK Summary of Product Characteristics." O 0
3. "Product Information. PhosLo (calcium acetate)" Braintree, Braintree, MA.
Some side effects of PhosLo may not be reported. Always consult your doctor or healthcare specialist for medical advice. You may also report side effects to the FDA.
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