Answer: magnesia

AnswerCrossword Clue
MAGNESIA

Laxative powder

MAGNESIA

Milk of ...

MAGNESIAMilk of ..
MAGNESIA

Drug store item.

MAGNESIA
Milk of ... (antacid)
MAGNESIA
Antacid ingredient
MAGNESIAKind of milk (with "of")
MAGNESIAAntacid substance
MAGNESIAMilk of ... (medicine cabinet item)
MAGNESIAOxide used as an antacid