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## Ecospirin (Aspirin Enteric-Coated)
### Overview
Ecospirin is a brand name for enteric-coated aspirin. Aspirin is a nonsteroidal anti-inflammatory drug (NSAID) with analgesic, antipyretic, and antiplatelet properties. The enteric coating is designed to delay absorption until the drug reaches the small intestine, reducing gastric irritation.
### Primary Indications
* **Analgesia and Antipyresis:** Mild to moderate pain and fever.
* **Antiplatelet Therapy:** Prevention of cardiovascular events (e.g., myocardial infarction, stroke) in patients with established cardiovascular disease, those at high risk, or after certain procedures (e.g., coronary artery bypass grafting, percutaneous coronary intervention).
### Adult Dosing
* **Analgesia/Antipyresis:**
* 325 mg to 650 mg orally every 4 hours as needed.
* Maximum dose: Not well-defined for this indication with enteric-coated formulations, but typically not exceeding 4000 mg/day for NSAIDs in general, though higher doses may be used under specific medical supervision.
* **Cardiovascular Prevention:**
* **Primary Prevention:** Dosing can vary. Some guidelines suggest 75-100 mg daily. Others do not recommend routine primary prevention in low-risk individuals.
* **Secondary Prevention:** 75 mg to 100 mg orally once daily.
* **Post-ACS/PCI/CABG:** Often initiated at a higher dose (e.g., 162 mg to 325 mg daily) followed by a lower maintenance dose. Specific loading and maintenance doses should follow established protocols or cardiologist recommendations.
### Pediatric Dosing
* **Analgesia/Antipyresis:** Aspirin is generally **not recommended** for children and teenagers with viral infections (e.g., influenza, varicella) due to the risk of Reye's syndrome. For other indications, dosing is weight-based but should be guided by specific pediatric guidelines and physician discretion due to the Reye's syndrome risk.
### Dose Adjustments
* No dose adjustments are typically required for hepatic or renal impairment unless severe. However, caution is advised in patients with severe renal or hepatic disease.
### Contraindications
* Hypersensitivity to aspirin, salicylates, NSAIDs, or any component of the formulation.
* History of asthma, urticaria, or other allergic-type reactions precipitated by aspirin or other NSAIDs.
* Active peptic ulceration or gastrointestinal bleeding.
* Children and teenagers with viral infections.
* Third trimester of pregnancy.
* Severe heart failure.
* Concurrent use with methotrexate at doses >20 mg/week.
### Adverse Effects
* **Common:** Gastrointestinal upset, dyspepsia, heartburn, nausea.
* **Serious:** Gastrointestinal bleeding, ulceration, perforation; tinnitus (especially at higher doses); bronchospasm; urticaria; angioedema; Reye's syndrome (in children/teenagers with viral illness); increased bleeding risk.
### Key Drug Interactions
* **Anticoagulants (e.g., warfarin, heparin, DOACs):** Increased risk of bleeding.
* **Other NSAIDs and COX-2 Inhibitors:** Increased risk of gastrointestinal adverse effects and bleeding.
* **Corticosteroids:** Increased risk of gastrointestinal ulceration and bleeding.
* **Selective Serotonin Reuptake Inhibitors (SSRIs):** Increased risk of bleeding.
* **Methotrexate:** Aspirin can increase methotrexate toxicity, especially at higher doses.
* **Uricosuric agents (e.g., probenecid):** Aspirin can decrease the efficacy of uricosuric agents.
* **Antihypertensives (e.g., ACE inhibitors, ARBs, beta-blockers):** NSAIDs can reduce the efficacy of some antihypertensives.
### Monitoring
* Signs and symptoms of gastrointestinal bleeding (e.g., melena, hematemesis, abdominal pain).
* Signs and symptoms of bleeding elsewhere (e.g., bruising, epistaxis, hematuria).
* Renal function, especially in elderly patients or those with pre-existing renal disease.
* Tinnitus or hearing changes, which may indicate overdosage.
### Clinical Pearls
* The enteric coating delays absorption and reduces gastric irritation but does not eliminate the risk of gastrointestinal bleeding. Take with a full glass of water. Do not crush or chew enteric-coated tablets.
* Aspirin is a potent antiplatelet agent; its antiplatelet effect is irreversible and lasts for the life of the platelet.
* In patients undergoing elective coronary artery bypass surgery, aspirin should generally be discontinued for at least 7 days prior to surgery to reduce perioperative bleeding risk, unless specifically indicated otherwise.
* For acute cardiovascular events (e.g., suspected myocardial infarction), immediate administration of non-enteric-coated aspirin (chewed) is preferred for faster absorption.
*This information is intended for clinical use and does not replace the need to consult the official prescribing information or current clinical guidelines.*
