Combining Diclofenac Sodium and Fondaparinux Sodium is a major interaction and should generally be avoided without close medical supervision.
Combining diclofenac (an NSAID) with fondaparinux (a blood thinner) significantly increases your risk of serious bleeding, including stomach bleeding. Your doctor will likely recommend avoiding this combination.
Mechanism: Diclofenac inhibits prostaglandin synthesis, which reduces platelet aggregation and impairs the integrity of the gastrointestinal mucosa. Fondaparinux is a selective factor Xa inhibitor, which directly reduces thrombin generation and inhibits clot formation. The concurrent use of these agents results in an additive antiplatelet and anticoagulant effect, profoundly increasing the risk of hemorrhage.
Diclofenac Sodium vs. Fondaparinux Sodium
Compare Diclofenac Sodium and Fondaparinux Sodium: mechanism of action, indications, side effects, cost, and which may be right for you.
Drug A
Diclofenac Sodium
Diclofenac Sodium
NSAIDs (Non-Steroidal Anti-Inflammatory Drugs)
RxDrug B
Fondaparinux Sodium
fondaparinux sodium
Anticoagulants
RxQuick Comparison
| Category | Diclofenac Sodium | Fondaparinux Sodium |
|---|---|---|
| Drug Class | NSAIDs (Non-Steroidal Anti-Inflammatory Drugs) | Anticoagulants |
| Rx Status | Rx | Rx |
| Generic Available | No | No |
| Typical Cost | $10-$30/month | $500–$1,500/month |
Diclofenac Sodium Overview
DICLOFENAC SODIUM (brand name: Diclofenac Sodium) is a NSAIDs. 1 INDICATIONS AND USAGE Diclofenac sodium topical solution, USP is indicated for the treatment of signs and symptoms of osteoarthritis of the knee(s) (1). Diclofenac sodium topical solution is a nonsteroidal anti-inflammatory drug indicated for the treatment of signs and symptoms of osteoarthritis…
Full Diclofenac Sodium guide →Fondaparinux Sodium Overview
Fondaparinux sodium is a medication that helps prevent and treat blood clots. It works by thinning the blood, specifically by blocking a substance in the body called Factor Xa, which is involved in clot formation. This medicine is used to prevent deep vein thrombosis (DVT) after major surgeries like hip, knee, or abdominal surgery, and also to treat existing DVT or pulmonary embolism (PE).
Full Fondaparinux Sodium guide →How Each Drug Works
Diclofenac Sodium
Diclofenac has analgesic, anti-inflammatory, and antipyretic properties. The mechanism of action of diclofenac sodium, like that of other NSAIDs, is not completely understood but involves inhibition of cyclooxygenase (COX-1 and COX-2). Diclofenac is a potent inhibitor of prostaglandin synthesis in vitro. Diclofenac concentrations reached during therapy have produced in vivo effects. Prostaglandins sensitize afferent nerves and potentiate the action of bradykinin in induc…
Fondaparinux Sodium
The antithrombotic activity of fondaparinux sodium is the result of antithrombin III (ATIII)-mediated selective inhibition of Factor Xa. By selectively binding to ATIII, fondaparinux sodium potentiates (about 300 times) the innate neutralization of Factor Xa by ATIII. Neutralization of Factor Xa interrupts the blood coagulation cascade and thus inhibits thrombin formation and thrombus development. Fondaparinux sodium does not inactivate thrombin (activated Factor II) and…
Approved Uses (Indications)
Diclofenac Sodium
Diclofenac sodium topical solution, USP is indicated for the treatment of signs and symptoms of osteoarthritis of the knee(s) . Diclofenac sodium topical solution is a nonsteroidal anti-inflammatory drug indicated for the treatment of signs and symptoms of osteoarthritis of the knee(s).
Fondaparinux Sodium
Fondaparinux sodium injection is a Factor Xa inhibitor (anticoagulant) indicated for: Prophylaxis of deep vein thrombosis (DVT) in patients undergoing hip fracture surgery (including extended prophylaxis), hip replacement surgery, knee replacement surgery, or abdominal surgery. Treatment of DVT or acute pulmonary embolism (PE) when administered in conjunction with warfarin. 1.1 Prophylaxis of Deep Vein Thrombosis Fondaparinux sodium injection is indicated for the prophylaxis of deep vein thrombosis (DVT), which may lead to pulmonary embolism (PE): …
Side Effects
Diclofenac Sodium
Fondaparinux Sodium
Cost Comparison
Diclofenac Sodium
$10-$30/month
Diclofenac sodium is widely available as a low-cost generic. Patients can often find significant savings by using discount cards or pharmacy loyalty programs.
Fondaparinux Sodium
$500–$1,500/month
As Fondaparinux Sodium is a brand-only drug, manufacturer patient assistance programs or discount cards may offer significant savings. Always check with your healthcare provider for available options.
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Medical Disclaimer
The information on RxGuide is intended for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician, pharmacist, or other qualified health provider with any questions you may have regarding a medical condition or medication. Never disregard professional medical advice or delay in seeking it because of something you have read on this website.