Tolfenamic Acid and Sertraline: Interaction Details
AI-assisted, pharmacist-reviewed · AI content regenerated Jul 11, 2026 · Source data updated Jul 2, 2026 · Sources: FDA labeling, DDInter 2.0, cited literature
Sertraline
No brand names on recordTolfenamic Acid
No brand names on record
How we grade severity & evidence
Severity levels
- Contraindicated: These should generally not be used together.
- Major: Potentially serious — often needs a change or close monitoring.
- Moderate: Can be significant — usually manageable with monitoring.
- Minor: Usually limited clinical impact.
Evidence grades
- Established: Well documented — supported by controlled studies or strong clinical data.
- Probable: Good supporting evidence, though not definitively proven.
- Suspected: Some evidence suggests this interaction, but it is not well established.
- Possible: Limited or conflicting evidence; the interaction may occur.
- Theoretical: Predicted from the drugs' pharmacology; not yet confirmed in people.
Ratings come from the documented interaction literature and are reviewed by a pharmacist. They describe the documented risk of the combination, not what will necessarily happen to you — your dose, timing, and health picture all matter.
You're taking sertraline (an antidepressant) along with tolfenamic acid (an anti-inflammatory pain reliever, an NSAID). Both of these can affect how your blood clots. Sertraline lowers the amount of a chemical called serotonin that your platelets use to help stop bleeding, and NSAIDs can irritate the stomach lining. Put together, they can raise your risk of bleeding, most often in the stomach or gut, and rarely something more serious.
Watch for warning signs like black or bloody stools, vomit that looks like coffee grounds, easy bruising, or nosebleeds. The good news is your care team can manage this by choosing safer options or watching you more closely. Please don't stop either medicine on your own, just talk with your pharmacist or doctor.
Effect: Additive bleeding risk (GI and, rarely, intracranial hemorrhage) with concurrent SSRI + NSAID.
Mechanism: Sertraline inhibits platelet serotonin reuptake, depleting platelet serotonin and impairing serotonin-mediated platelet aggregation. Tolfenamic acid adds antiplatelet effect plus direct GI mucosal injury (COX inhibition). This is a pharmacodynamic interaction, not a prodrug/CYP issue.
- Direction: Increased bleeding risk (additive hemostatic impairment)
- Severity/Evidence: Major; established
- Onset: Unspecified
Management: Monitor for GI bleeding (especially elderly, prior ulcer/GI bleed). Consider acetaminophen for analgesia, an antidepressant with less serotonergic activity, or gastroprotection (PPI/H2RA).
What happens
An increased risk of bleeding
Interaction Deep Dive
Exercise caution when NSAIDs are combined with antidepressants, SSRIs included, because of a heightened likelihood of intracranial hemorrhage1 as well as gastrointestinal (GI) bleeding 6. Reported bleeding manifestations have encompassed epistaxis, ecchymosis, hematoma, petechiae, and hemorrhages that are life-threatening 5. If an SSRI is administered alongside an NSAID, monitor the patient carefully for indications of adverse reactions such as GI bleeds, particularly in elderly individuals and those who have a prior history of GI ulcers. Options to weigh include alternative approaches to pain control (for instance, acetaminophen), reassessing the selected antidepressant (that is, considering agents that exert less serotonin reuptake inhibition), or providing prophylactic antiulcer medication 4.
Why it happens (mechanism)
Depletion of platelet serotonin by SSRI; additive effects on hemostasis
How to manage this interaction
Keep taking both as prescribed unless your prescriber tells you otherwise. This combination is manageable, and your care team has several options.
- Your team may monitor you more closely for signs of bleeding, especially if you are older or have had stomach ulcers or GI bleeds before.
- They may suggest a different pain option, such as acetaminophen, when appropriate.
- They may review your antidepressant or add a stomach-protecting medicine.
Call your pharmacist or doctor if you notice black or bloody stools, coffee-ground vomit, unusual bruising, or nosebleeds that won't stop.
Management is individual — confirm any change with your pharmacist or prescriber.
Literature reports
4 reports — tap to read
a) Taking NSAIDs together with antidepressants, such as tricyclic antidepressants, SSRIs, serotonin-norepinephrine reuptake inhibitors, and MAOIs, led to a 60% higher risk of intracranial hemorrhage within 30 days of combined use when compared with antidepressant use by itself. No meaningful difference was found among the antidepressant drug classes regarding this elevated risk; nevertheless, male patients had a higher risk than female patients 1.
b) SSRIs raise the likelihood of upper gastrointestinal (GI) bleeding, and this effect is amplified by simultaneous use of NSAIDs or low-dose aspirin. Hospital admissions for upper GI bleeding were examined among 26,005 people using antidepressant medications and compared with the number of admissions in patients who were not prescribed antidepressants. The number of upper GI bleeding events was 3.6 times higher than anticipated. Using an SSRI together with NSAIDs or low-dose aspirin raised the risk to 12.2 and 5.2 times, respectively. The results of this study show a greater risk of upper GI bleeding while using SSRIs. Combining SSRIs with NSAIDs or low-dose aspirin raised the risk still further 5.
c) Two meta-analyses examining episodes of upper GI bleeding attributable to SSRIs, NSAIDs, and their combination found that SSRIs raised the risk by 1.73 6 to 2.36 times 7, NSAIDs by 2.55 times 6, and the combination of SSRIs and NSAIDs by 4.02 6 to 6.33 times 7.
d) The release of serotonin from platelets plays an important role in preserving hemostasis. Case-control and cohort studies have demonstrated that using SSRIs together with NSAIDs has been linked to a greater risk of bleeding 8.
Common questions
Can I take Tolfenamic Acid and Sertraline together?
Combining sertraline with tolfenamic acid raises your bleeding risk, mainly in the stomach and gut. Keep taking both as prescribed, watch for bleeding signs, and ask your care team whether a safer pain option or stomach protection is right for you. Always confirm with your pharmacist or prescriber before making any change.
How serious is the Tolfenamic Acid and Sertraline interaction?
It is rated major. Potentially serious — often needs a change or close monitoring.
How quickly could this interaction happen?
The documented onset is "unspecified". The timing of this interaction is not well characterized.
How is the Tolfenamic Acid and Sertraline interaction managed?
Keep taking both as prescribed unless your prescriber tells you otherwise. This combination is manageable, and your care team has several options. Your team may monitor you more closely for signs of bleeding, especially if you are older or have had stomach ulcers or GI bleeds before. They may suggest a different pain option, such as acetaminophen, when appropriate. They may review your antidepress… Management is individual — always follow your own care team's guidance.
How strong is the evidence for this interaction?
The evidence is graded "established". Well documented — supported by controlled studies or strong clinical data.
From our Q&A
Real reader questions about these medications, each personally answered by our pharmacist:
Questions for your pharmacist
- Does my dose of Tolfenamic Acid or Sertraline need adjusting while I take them together?
- What symptoms should prompt me to call you or my prescriber right away?
- Does the timing of my doses matter for this combination?
- Is there a safer alternative to one of these medications for me?
References (8)
- Shin JY, Park MJ, Lee SH, et al: Risk of intracranial haemorrhage in antidepressant users with concurrent use of non-steroidal anti-inflammatory drugs: nationwide propensity score matched study. BMJ 2015; 351:h3517. PubMed
- Product Information: VIMOVO(TM) delayed release oral tablets, naproxen and esomeprazole magnesium delayed release oral tablets. AstraZeneca LPW, Wilmington, DE, 2010. DailyMed
- Product Information: SPRIX(TM) nasal spray, ketorolac tromethamine nasal spray. Roxro Pharma, Inc, Menlo Park, CA, 2009. DailyMed
- Mort JR, Aparasu RR, & Baer RK: Interaction between selective serotonin reuptake inhibitors and nonsteroidal antiinflammatory drugs: review of the literature. Pharmacotherapy 2006; 26(9):1307-1313. PubMed
- Dalton S, Johansen C, Mellemkjoer L, et al: Use of selective serotonin reuptake inhibitors and risk of upper gastrointestinal tract bleeding. Arch Intern Med 2003; 163:59-64. DOI
- Oka Y, Okamoto K, Kawashita N, et al: Meta-analysis of the risk of upper gastrointestinal hemorrhage with combination therapy of selective serotonin reuptake inhibitors and non-steroidal anti-inflammatory drugs. Biol Pharm Bull 2014; 37(6):947-953. PubMed
- Loke YK, Trivedi AN, & Singh S: Meta-analysis: gastrointestinal bleeding due to interaction between selective serotonin uptake inhibitors and non-steroidal anti-inflammatory drugs. Aliment Pharmacol Ther 2008; 27(1):31-40. PubMed
- Product Information: CELEXA(R) oral tablets, citalopram oral tablets. Allergan USA Inc (per FDA), Madison, NJ, 2023. DailyMed
Keep reading about Sertraline
Keep reading about Tolfenamic Acid
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