No black box warning on record for K-Phos No. 2
As of the latest FDA labeling reviewed, K-Phos No. 2 (POTASSIUM PHOSPHATE, MONOBASIC AND SODIUM PHOSPHATE, MONOBASIC, ANHYDROUS) does not carry a black box warning. Standard warnings and precautions still apply — see the full K-Phos No. 2 medicine page for the complete safety profile.