PhosLo Side Effects
Generic Name: calcium acetate
Note: This page contains side effects data for the generic drug calcium acetate. It is possible that some of the dosage forms included below may not apply to the brand name PhosLo.
For the Consumer
Applies to calcium acetate: oral capsule, oral solution, oral tablet
As well as its needed effects, calcium acetate (the active ingredient contained in PhosLo) may cause unwanted side effects that require medical attention.
Major Side Effects
If any of the following side effects occur while taking calcium acetate, check with your doctor immediately: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
Minor Side Effects
Some calcium acetate side effects may not need any medical attention. As your body gets used to the medicine these side effects may disappear. Your health care professional may be able to help you prevent or reduce these side effects, but do check with them if any of the following side effects continue, or if you are concerned 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.
It is possible that some side effects of PhosLo may not have been reported. These can be reported to the FDA here. Always consult a healthcare professional for medical advice.
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