Prescription Clinical MonographProton Pump Inhibitor (Gastric Acid Suppressant)

Verified Evidence Sources: openFDA & NLM MedlinePlus

Omeprazole

PPIs bind covalently to the H+/K+-ATPase enzyme system at the secretory surface of gastric parietal cells, blocking basal and stimulated gastric acid production.

Generic Active Chemical: Omeprazole

Brand Formulations:PrilosecPrilosec OTCTalicia (as a combination product containing Amoxicillin, Omeprazole, Rifabutin)Zegerid (containing Omeprazole, Sodium Bicarbonate)Zegerid OTC (containing Omeprazole, Sodium Bicarbonate)

Quick Jump:Kitchen Foods (1)Drug Red Flags (0)Supplements & Herbs (0)Nutrient Depletion (1)Administration Timing (2)Pairwise Combos (3)

Kitchen Food, Drink & Dietary Conflicts

Biochemical interactions with common foods, beverages & cooking ingredients

1 Flagged Foods

CRITICAL

Potassium-Enriched Salt Substitutes (NoSalt, Nu-Salt)

NLM MedlinePlus Dietary Warning & openFDA

Bioactive Compound:Potassium Chloride (KCl)

Biological Target:Renal Cortical Collecting Duct Electrophysiology

Clinical Mechanism:

Exogenous potassium chloride loads cannot be cleared efficiently when RAAS or renal filtration is modified, risking acute lethal hyperkalemia (>6.5 mEq/L) and ventricular arrhythmias.

Patient Actionable Rule:Strictly avoid low-sodium seasonings containing potassium chloride without explicit physician approval and laboratory electrolyte monitoring.

Prescription & OTC Drug Interactions (DDI)

Documented pharmacological conflicts & contraindicated co-prescriptions

0 Warning Classes

No major contraindicated drug classes listed in the basic monograph. Always provide your complete medication list to your prescribing physician.

Dietary Supplements, Herbs & Minerals (DNI)

Interactions with over-the-counter vitamins, minerals, and herbal preparations

0 Monitored

No acute supplement or herb contraindications identified. Notify your healthcare provider of any multi-vitamins or botanicals you take daily.

Drug-Induced Nutrient Depletion & Nutritional Defense

Micronutrient depletions caused by pharmacological pathways & recommended replenishment

1 Depletion Pathways

Magnesium & Vitamin B12

FDA Drug Safety Communication on Hypomagnesemia

Depletion Pathway: Hypochlorhydria impairs enzymatic cleavage of protein-bound B12 and alters intestinal TRPM6/7 channels essential for active magnesium absorption.

Nutritional Defense Protocol:Routine serum magnesium testing on prolonged (>1 yr) PPI therapy; consider magnesium glycinate and oral methylcobalamin.

Chronotherapy & Meal Administration Protocols

Optimal absorption, meal-timing rules & GI tolerability protocols

2 Protocols

MEALAdministration Rule

pylori , or up to three times a day, before meals when used to treat conditions in which the stomach produces too much acid.

Rationale: Promotes optimal mucosal absorption and consistent therapeutic plasma levels.

MEALAdministration Rule

If you are taking the delayed-release tablets, swallow them whole with a full glass of water.

Rationale: Promotes optimal mucosal absorption and consistent therapeutic plasma levels.

Frequently Researched Drug-Substance Combinations

Explore pairwise interaction dossiers and laboratory safety analyses

CRITICAL→

Multi-Substance Interactive Radar

Taking Omeprazole alongside daily coffee, supplements, or other medications?

Add all your daily medications, foods (Dairy, Spinach, Coffee, Grapefruit), and botanicals (Ashwagandha, Curcumin, Melatonin) into the SafeStack interactive engine to run full multi-way synergy collision analysis in real time.

Launch SafeStack Radar with Omeprazole→

Authoritative Clinical Evidence & Regulatory Sources

Data on this clinical monograph is compiled from the U.S. National Library of Medicine (MedlinePlus), openFDA Structured Product Labeling (SPL Section 7 Drug Interactions), the NIH Office of Dietary Supplements (ODS), and Krause and Mahan's Food & Nutrition Care Process.

View Original NLM MedlinePlus Monograph·Clinical & Legal Disclaimers