Milk of Magnesia Magnesium Hydroxide Doxycycline
ModerateAntacids chelate doxycycline and reduce its absorption, risking treatment failure.
These medicines are often taken together with some care. Your doctor may change a dose, space them apart or check on you more often. Make sure your doctor and pharmacist know you take both.
What to do: Give doxycycline at least 2-3 hours before or after the antacid.