No black box warning on record for Alka-Seltzer Extra Strength
As of the latest FDA labeling reviewed, Alka-Seltzer Extra Strength (ANHYDROUS CITRIC ACID, SODIUM BICARBONATE, AND ASPIRIN) does not carry a black box warning. Standard warnings and precautions still apply — see the full Alka-Seltzer Extra Strength medicine page for the complete safety profile.