diclofenac vs voriconazole

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Side-by-side comparison of diclofenac and voriconazole. 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

ibuprofen and diclofenac (CYP2C9 Inhibition) Increased Frequent monitoring for adverse reactions and toxicity related to NSAIDs.

Drug Class
diclofenac Nonsteroidal Anti-Inflammatory Drug (NSAID)
voriconazole Azole Antifungal
Type
diclofenac Over-the-Counter
voriconazole Prescription
Summary
diclofenac

Diclofenac is a gel that helps with arthritis pain in your hands, wrists, elbows, feet, ankles, or knees. It belongs to a class of drugs called NSAIDs.

voriconazole

Voriconazole (Vfend) is an antifungal medicine. It is used to treat serious fungal infections in adults and children 2 years and older.

What It Treats
diclofenac

This medicine temporarily relieves arthritis pain. It is only for pain in your hands, wrists, elbows, feet, ankles, or knees. It may take up to 7 days to start working. If you still have pain after 7 days, stop using it.

voriconazole

This medicine treats several types of fungal infections. It is used for invasive aspergillosis, a lung infection. It also treats candidemia (a blood infection) and other Candida infections in the skin, abdomen, kidney, bladder, and wounds. Voriconazole can also treat esophageal candidiasis (a throat infection) and serious infections caused by Scedosporium and Fusarium fungi.

How It Works
diclofenac

Diclofenac is an NSAID. It reduces pain and swelling by blocking substances in the body that cause inflammation.

voriconazole

Voriconazole belongs to a class of drugs called azole antifungals. It works by stopping the growth of fungi. It does this by interfering with the production of the fungal cell membrane.

Common Side Effects
diclofenac
  • Pain
  • Headache
voriconazole
  • Visual disturbances
  • Fever
  • Nausea
  • Rash
  • Vomiting
FAERS Reports
diclofenac
  • Pain 12,281
  • Fatigue 11,317
  • Rheumatoid Arthritis 9,241
  • Rash 8,747
  • Arthralgia 8,640
voriconazole
  • Drug Interaction 2,315
  • Death 1,460
  • Pyrexia 1,411
  • Pneumonia 1,321
  • Condition Aggravated 1,093
Serious Warnings
diclofenac

No specific warnings noted.

voriconazole

Voriconazole can cause serious liver problems. Your doctor will check your liver function with blood tests before and during treatment. This medicine can also cause heart rhythm problems. Make sure your potassium, magnesium, and calcium levels are normal before starting. Voriconazole can also cause severe skin reactions and make you sensitive to sunlight. Avoid sunlight and wear protective clothing. This medicine can harm an unborn baby, so women who can get pregnant should use effective birth control.

Pregnancy
diclofenac

No pregnancy information available.

voriconazole

Voriconazole can cause harm to an unborn baby. If you are pregnant or could become pregnant, talk to your doctor. It is not known if voriconazole passes into breast milk. Talk to your doctor about the risks and benefits of breastfeeding while taking this medicine.

Also Compare, Nearby Drugs

How to Read This diclofenac vs voriconazole Comparison

diclofenac is classified in the Nonsteroidal Anti-Inflammatory Drug (NSAID) drug class, while voriconazole 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, diclofenac has 50,226 submissions while voriconazole has 7,600. 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 voriconazole interferes with the enzyme that clears diclofenac from your blood, which can cause the drug to reach higher levels than intended.. 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 diclofenac or voriconazole.

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