No black box warning on record for D-34
As of the latest FDA labeling reviewed, D-34 (OYSTER SHELL CALCIUM CARBONATE, CRUDE, CALCIUM FLUORIDE, CALCIUM HYPOPHOSPHITE, TRIBASIC CALCIUM PHOSPHATE, HEKLA LAVA, DAPHNE MEZEREUM BARK, MERCURIC OXIDE, SILICON DIOXIDE, AND MATRICARIA CHAMOMILLA) does not carry a black box warning. Standard warnings and precautions still apply — see the full D-34 medicine page for the complete safety profile.