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Pulse · Anti-infective note · 3 min read
Doryx 100 mg with dairy and antacids: delayed-release spacing
Medically reviewed by Dr. Mateo Ruiz, MD - Clinical pharmacology, Barcelona
Last reviewed
Updated
01Separate Doryx from dairy, antacids, and iron
Divalent and trivalent cations bind tetracyclines. Do not wash Doryx down with a latte.
Exact food-effect percents vary by formulation. The counselling move does not. Pair with the sun note.
Stay upright. Esophagitis is the other everyday miss.
02Ordinary hyclate is cheaper and different
GoodRx prints different cash for DR 100 mg x 14 versus ordinary hyclate 100 mg x 14. Ask the pharmacist to price the form on the script.
03Full glass, remain upright
Night doses in bed are how people earn a burnt esophagus on a 'simple' 100 mg course.
Do not crush DR pellets unless that insert allows a sprinkle-and-swallow. Ordinary crushing wrecks the release.
DR 100 mg everyday spacing
What
Move
Not a move
Dairy / antacid / iron
Separate per the insert
Wash the capsule down with a latte
Swallow
Full glass, stay upright
Bedtime dry swallow
Missed dose
Take when remembered unless near the next
Double at dinner
04What a cheaper 100 mg tablet does not inherit
It does not inherit the DR pellet clock. It does not erase sun or upright-swallow rules. Reviewed 2026-08-21.
Do not wash Doryx 100 mg down with a latte. Cations bind tetracyclines. Stay upright after the swallow.
Jonas V. Yogurt with the noon dose?
Vault reply
Dairy, antacids, and iron bind tetracyclines. Food-effect studies on some doxycycline products show lower Cmax and AUC with dairy-rich meals. Exact percents vary by formulation. The counselling move does not: separate them.
Rita F. Crush DR to hide taste?
Vault reply
Do not crush delayed-release pellets unless that product insert says you may sprinkle them on applesauce and swallow immediately. Ordinary crushing wrecks the release.
Ugo S. Night dose in bed?
Vault reply
Esophagitis is a class risk. Take with a full glass of water and stay upright. Night doses in bed are how people earn a burnt esophagus.
Gala N. Ordinary hyclate cheaper - same spacing?
Vault reply
Ordinary hyclate is a different product. Cations still matter. Price the delayed-release NDC if that is the script. See Doryx 100 mg DR.
Enric B. Missed noon. Double at dinner?
Vault reply
Do not double. Take the missed dose when you remember unless it is close to the next one, then skip.
Sibley T. Why not quote banner 'doxy 100' cash?
Vault reply
Because this note follows Doryx-class 100 mg delayed-release. A banner that hides the dosage form is hiding the NDC.
Before you start, stop, or change any medicine, speak with your prescriber or pharmacist - they hold your chart, this vault card does not. Open the vault disclaimer.
