No black box warning on record for Drainage
As of the latest FDA labeling reviewed, Drainage (ECHINACEA (ANGUSTIFOLIA), TRIFOLIUM PRATENSE, PHYTOLACCA DECANDRA, CALCAREA IODATA, KALI MURIATICUM, NITRICUM ACIDUM, PHOSPHORICUM ACIDUM, SULPHUR IODATUM) does not carry a black box warning. Standard warnings and precautions still apply — see the full Drainage medicine page for the complete safety profile.