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Does Salsalate Interact with Acetylsalicylic Acid?

Salsalate and Acetylsalicylic Acid have a contraindicated drug interaction according to U.S. FDA drug labeling data. Aspirin and other salicylate drugs are additive to salsalate and may increase plasma concentrations of salicylic acid to toxic levels. Concomitant administration is not generally recommended. The mechanism involves additive salicylate accumulation; reduced protein binding. Patients taking both medications should consult their healthcare provider before starting, stopping, or changing the dosage of either drug. This information is based on official FDA drug labeling sourced from OpenFDA and the NIH National Library of Medicine.

Severity
Contraindicated
Management
Do not take together
Data Source
U.S. FDA via OpenFDA

How This Interaction Works

The interaction between Salsalate and Acetylsalicylic Acid occurs because additive salicylate accumulation; reduced protein binding. Clinically, this means aspirin and other salicylate drugs are additive to salsalate and may increase plasma concentrations of salicylic acid to toxic levels. concomitant administration is not generally recommended. Because of the severity of this interaction, these medications are contraindicated — meaning they should not be taken together under any circumstances. If you are currently taking both, contact your healthcare provider immediately to discuss alternatives.

What To Tell Your Doctor or Pharmacist

If you are taking Salsalate and your doctor is considering prescribing Acetylsalicylic Acid (or vice versa), make sure to:

  • Inform your doctor and pharmacist of all current medications, including over-the-counter drugs and supplements
  • Ask whether the benefits of combining these medications outweigh the risks for your specific situation
  • Ask what symptoms to watch for that would indicate the interaction is causing problems
  • Ask about alternative medications that do not interact with your current regimen
  • Ask how frequently you should be monitored while these are co-prescribed
  • Never stop or change either medication without first consulting your healthcare provider
💊 Salsalate(Salsalate)+💊 Acetylsalicylic Acid

Severity & Interaction Details

⛔
contraindicated
Avoid this combination
FDA labeling lists this pair as contraindicated. The risk outweighs the benefit in nearly all cases.
Severity scale
MinorContra
On record
Yes
Drug A class
—
Drug B class
—
Source
NLP:salsalate

What this means in plain English

Aspirin and other salicylate drugs are additive to salsalate and may increase plasma concentrations of salicylic acid to toxic levels. Concomitant administration is not generally recommended.

What the FDA label says

"Additive salicylate accumulation; reduced protein binding"

📖 Source: NLP:salsalate

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Data sourced from U.S. FDA drug labeling via openFDA and the NIH National Library of Medicine. For informational purposes only. Always consult your pharmacist or physician.