Calcium Acetate Side Effects

6 ADVERSE REACTIONS Hypercalcemia is discussed elsewhere [see Warnings and Precautions (5.1) ].

The most common (>10%) adverse reactions are hypercalcemia, nausea and vomiting.

( 6.1 ) In clinical studies, patients have occasionally experienced nausea during calcium acetate therapy.

( 6 ) To report SUSPECTED ADVERSE REACTIONS, contact Cipla Ltd.

at 1-866-604-3268 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch 6.1 Clinical Trial Experience Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice.

In clinical studies, calcium acetate has been generally well tolerated.

Calcium acetate was studied in a 3-month, open-label, non-randomized study of 98 enrolled ESRD hemodialysis patients and an alternate liquid formulation of calcium acetate was studied in a two week double-blind, placebo-controlled, cross-over study with 69 enrolled ESRD hemodialysis patients.

Adverse reactions (>2% on treatment) from these trials are presented in Table

Table 1: Adverse Reactions in Patients with End-Stage Renal Disease Undergoing Hemodialysis Preferred Term Total adverse reactions reported for calcium acetate n=167 n (%) 3-month, open-label study of calcium acetate n=98 n (%) Double blind, placebo-controlled, cross-over study of liquid calcium acetate n=69 Calcium acetate n (%) Placebo n (%) Nausea 6 (3.6) 6 (6.1) 0(0.0) 0(0.0) Vomiting 4 (2.4) 4 (4.1) 0(0.0) 0(0.0) Hypercalcemia 21 (12.6) 16 (16.3) 5 (7.2) 0(0.0) Mild hypercalcemia may be asymptomatic or manifest itself as constipation, anorexia, nausea, and vomiting.

More severe hypercalcemia is associated with confusion, delirium, stupor, and coma.