Aceclofenac

# Aceclofenac ## Overview - **Classification**: Non-steroidal anti-inflammatory drug (NSAID) - **Mechanism**: Inhibits prostaglandin synthesis, primarily through preferential inhibition of cyclooxygenase-2 (COX-2), leading to anti-inflammatory, analgesic, and antipyretic effects. ## Primary Indications 1. **Osteoarthritis** - Symptomatic relief of pain and inflammation 2. **Rheumatoid Arthritis** - Symptomatic treatment of pain and inflammation 3. **Ankylosing Spondylitis** - Symptomatic relief of pain and inflammation ## Adult Dosing ### Standard Dosing **Osteoarthritis, Rheumatoid Arthritis, Ankylosing Spondylitis** - **Dose**: **100 mg** - **Frequency**: Twice daily (BID) - **Route**: Oral - **Duration**: As clinically indicated for symptomatic relief. ### Dose Adjustments - **Renal Impairment**: Use with caution in mild-to-moderate impairment. Avoid in severe renal impairment (CrCl < **30 mL/min**). - **Hepatic Impairment**: Initial dose **100 mg once daily** for mild to moderate impairment. Avoid in severe hepatic impairment. - **Elderly Patients**: Use the lowest effective dose for the shortest duration. Monitor for GI, renal, and cardiovascular adverse effects. ## Pediatric Dosing *Aceclofenac is generally **not recommended** for use in individuals under 18 years of age due to insufficient data on safety and efficacy.* ### Neonates (0-28 days) - **Dose**: Not recommended. - **Special Notes**: Safety and efficacy are not established. Avoid use. ### Infants (1-12 months) - **Dose**: Not recommended. - **Special Notes**: Safety and efficacy are not established. Avoid use. ### Children (1-12 years) - **Dose**: Not recommended. - **Special Notes**: Safety and efficacy are not established. Avoid use. ### Adolescents (13-18 years) - **Dose**: Not recommended. - **Special Notes**: Safety and efficacy are not established. ## Safety Information ### Contraindications - **Absolute**: Hypersensitivity to aceclofenac, aspirin, or other NSAIDs (e.g., aspirin-induced asthma, urticaria, rhinitis). - **Absolute**: Active gastrointestinal bleeding or peptic ulcer disease. - **Absolute**: Severe heart failure (NYHA Class II-IV), severe renal impairment (CrCl < **30 mL/min**), severe hepatic impairment. - **Absolute**: Third trimester of pregnancy. - **Absolute**: Post-operative pain in the setting of coronary artery bypass graft (CABG) surgery. ### Common Adverse Effects - **Common (1-10%)**: Dyspepsia, abdominal pain, nausea, diarrhea, elevated liver enzymes. - **Serious but Rare**: Gastrointestinal bleeding/ulceration, cardiovascular thrombotic events (MI, stroke), acute kidney injury, severe skin reactions (SJS, TEN), anaphylactic reactions. ### Key Drug Interactions - **Anticoagulants (e.g., Warfarin)**: Increased risk of bleeding. **Monitor INR closely.** - **Corticosteroids, SSRIs**: Increased risk of GI bleeding. Use with caution. - **Diuretics, ACE Inhibitors, ARBs**: Reduced antihypertensive effect; increased risk of renal impairment. **Monitor renal function.** - **Lithium, Methotrexate**: Increased plasma concentrations, leading to toxicity. **Monitor drug levels.** - **Other NSAIDs/Aspirin**: Increased risk of adverse effects, especially GI. Avoid concomitant use. ## Monitoring & Follow-up - **Before Treatment**: Baseline complete blood count (CBC), liver function tests (LFTs), renal function (SCr, CrCl), blood pressure. - **During Treatment**: Periodically monitor for GI symptoms, edema, blood pressure, and renal function (e.g., annually or as clinically indicated). - **Clinical Signs**: Watch for signs of GI bleeding (black stools, vomiting blood), rash, peripheral edema, shortness of breath. ## Clinical Pearls - 💡 **Tip 1**: Administer with food or milk to minimize gastrointestinal upset. - 💡 **Tip 2**: Use the lowest effective dose for the shortest possible duration to minimize risks. - 💡 **Tip 3**: Counsel patients on symptoms of GI bleeding (e.g., black tarry stools, coffee-ground emesis) and serious skin reactions. - 💡 **Tip 4**: Avoid in patients with a history of cardiovascular events or high cardiovascular risk if safer alternatives exist. > **⚠️ Important**: This information is for educational purposes only. Always consult current prescribing information, local guidelines, and clinical judgment before prescribing.