dexlansoprazole vs ketoconazole

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Side-by-side comparison of dexlansoprazole and ketoconazole. Data from FDA drug databases (Orange Book, NDC Directory, recalls, shortages) covering 20,000+ approved drugs, plus CMS pricing; see our methodology.

minor Known Drug Interaction

Drugs Dependent on Gastric pH for Absorption (e.g., iron salts, erlotinib, dasatinib, nilotinib, mycophenolate mofetil, ketoconazole/itraconazole) Clinical Impact: Dexlansoprazole can reduce the absorption of other drugs due to its effect on reducing intragastric acidity.

Drug Class
dexlansoprazole Proton Pump Inhibitor (PPI)
ketoconazole Azole Antifungal
Type
dexlansoprazole Prescription
ketoconazole Over-the-Counter
Summary
dexlansoprazole

Dexlansoprazole (Dexilant) is a medicine that lowers stomach acid. It belongs to a class of drugs called proton pump inhibitors (PPIs).

ketoconazole

Ketoconazole shampoo is an antifungal medicine. It treats a fungal infection on your skin.

What It Treats
dexlansoprazole

This medicine can help heal damage to your esophagus (the tube connecting your mouth to your stomach). It can also help with heartburn caused by acid reflux. Dexlansoprazole can also treat heartburn from GERD, a condition where stomach acid flows back into your esophagus.

ketoconazole

This shampoo treats tinea versicolor, a fungal infection. This infection can cause patches on your skin that are lighter or darker than the surrounding skin. These patches may appear on your trunk, neck, arms, and upper thighs.

How It Works
dexlansoprazole

Dexlansoprazole works by reducing the amount of acid your stomach makes. It does this by blocking a specific system in your stomach cells. This helps to heal damage caused by stomach acid.

ketoconazole

Ketoconazole is an antifungal medicine. It works by stopping the growth of the fungus. This helps to clear up the infection.

Common Side Effects
dexlansoprazole
  • Diarrhea
  • Abdominal pain
  • Nausea
  • Upper respiratory tract infection
  • Vomiting
ketoconazole

No common side effects listed.

FAERS Reports
dexlansoprazole
  • Chronic Kidney Disease 16,100
  • Acute Kidney Injury 7,791
  • Renal Failure 6,721
  • End Stage Renal Disease 4,842
  • Renal Injury 4,339
ketoconazole
  • Fatigue 929
  • Pruritus 902
  • Nausea 834
  • Rash 802
  • Diarrhoea 760
Serious Warnings
dexlansoprazole

Dexlansoprazole may hide signs of stomach cancer, so tell your doctor if your symptoms don't improve. It can also cause kidney problems, severe diarrhea from a Clostridium difficile infection, and bone fractures with long-term use. Some people may have severe skin reactions or lupus. Long-term use may also lead to low vitamin B12 or magnesium levels.

ketoconazole

You should not use this shampoo if you are allergic to ketoconazole or any of the other ingredients.

Pregnancy
dexlansoprazole

Based on animal studies, this medicine may harm a developing baby's bones. Talk to your doctor if you are pregnant or plan to become pregnant.

ketoconazole

It is not known if ketoconazole shampoo can harm an unborn baby. Talk to your doctor if you are pregnant or breastfeeding before using this medicine.

Also Compare, Nearby Drugs

How to Read This dexlansoprazole vs ketoconazole Comparison

dexlansoprazole is classified in the Proton Pump Inhibitor (PPI) drug class, while ketoconazole sits within the Azole Antifungal class. Drugs from different classes work through distinct mechanisms, so a head-to-head comparison illustrates trade-offs rather than equivalence. Both drugs are split between OTC and prescription status, which affects access and supervision.

Adverse event totals above are pulled from the FDA's Adverse Event Reporting System (FAERS). For these top-ranked reactions alone, dexlansoprazole has 39,793 submissions while ketoconazole has 4,227. Those figures reflect cumulative reporting volume, not per-patient risk, so older, widely dispensed drugs typically look worse on count alone. These two drugs have a known minor interaction flagged in FDA labeling, attributed to this medicine lowers stomach acid, which ketoconazole needs to dissolve and get into your bloodstream. without enough acid, your body may not absorb enough of the antifungal medicine to work properly.. Serious warnings, pregnancy guidance, and contraindications can differ even when indications overlap.

A table cannot represent individual circumstances. Data here is sourced from FDA Structured Product Labels (SPL) and FAERS, both of which update as manufacturers and clinicians submit new information. This registry does not provide medical, treatment, substitution, or medication-change directions for dexlansoprazole or ketoconazole.

Registry boundary: This comparison displays source-record fields and does not provide individualized medical direction.