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# Ecospirin (Aspirin Enteric-Coated)
## Overview
Ecospirin is an enteric-coated formulation of aspirin, a non-steroidal anti-inflammatory drug (NSAID) that acts as an antiplatelet agent. The enteric coating is designed to delay the dissolution of the tablet until it reaches the less acidic environment of the small intestine, potentially reducing gastric irritation.
## Primary Indications
* **Cardiovascular Prevention:** Secondary prevention of myocardial infarction (MI) and stroke in patients with established cardiovascular disease; primary prevention in select high-risk individuals.
* **Pain and Inflammation:** Relief of mild to moderate pain and reduction of fever and inflammation (less common use for enteric-coated formulations due to slower onset).
## Adult Dosing
* **Cardiovascular Prevention (Secondary):** 75-325 mg once daily.
* **Cardiovascular Prevention (Primary):** Dosing varies based on risk assessment; typically 75-100 mg once daily. The decision for primary prevention should be individualized and discussed with a healthcare provider.
* **Pain/Inflammation:** Typically 325-650 mg every 4-6 hours as needed. Higher doses may be used for inflammatory conditions, but this is less common with enteric-coated formulations. The maximum daily dose generally should not exceed 4 grams.
## Pediatric Dosing
Aspirin is generally **contraindicated** in children and adolescents for pain, fever, or inflammatory conditions due to the risk of Reye's syndrome. Exceptions may exist for specific conditions like Kawasaki disease, where dosing is based on expert recommendations and may involve higher doses (e.g., 80-100 mg/kg/day divided into 4 doses for the acute phase, followed by low-dose 3-5 mg/kg/day once daily). **Consult pediatric guidelines or a specialist for specific indications.**
## Dose Adjustments
* **Renal Impairment:** Use with caution. Dose reduction may be necessary in severe renal impairment.
* **Hepatic Impairment:** Use with caution. Dose reduction may be necessary in severe hepatic impairment.
## Contraindications
* Hypersensitivity to aspirin, salicylates, NSAIDs, or any component of the formulation.
* Active peptic ulcer disease or history of recurrent ulceration.
* Bleeding disorders (e.g., hemophilia, thrombocytopenia).
* Severe hepatic or renal impairment.
* Children and adolescents with viral infections (risk of Reye's syndrome).
* Asthma, urticaria, or other allergic-type reactions precipitated by aspirin or other NSAIDs.
* Third trimester of pregnancy.
## Adverse Effects
Common: Gastrointestinal upset (nausea, dyspepsia), heartburn.
Serious: Gastrointestinal bleeding, ulceration, perforation; hypersensitivity reactions (bronchospasm, rash); tinnitus, hearing loss (especially at higher doses); Reye's syndrome (in children/adolescents with viral infections); 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 GI toxicity and bleeding.
* **Corticosteroids:** Increased risk of GI ulceration and bleeding.
* **Antihypertensives (e.g., ACE inhibitors, ARBs, beta-blockers):** NSAIDs may reduce their efficacy and increase the risk of renal impairment.
* **Diuretics:** NSAIDs may reduce diuretic efficacy and increase risk of renal impairment.
* **Methotrexate:** Aspirin can decrease methotrexate clearance, increasing toxicity.
* **Selective Serotonin Reuptake Inhibitors (SSRIs) and Serotonin-Norepinephrine Reuptake Inhibitors (SNRIs):** Increased risk of bleeding, particularly GI bleeding.
* **Antacids:** May alter absorption; generally not clinically significant with enteric-coated aspirin.
## Monitoring
* **Signs of GI bleeding:** Melena, hematemesis, abdominal pain.
* **Signs of bleeding elsewhere:** Easy bruising, prolonged bleeding from cuts, nosebleeds.
* **Renal and hepatic function:** Periodically, especially in patients with pre-existing impairment or those on long-term therapy.
* **Tinnitus or hearing changes:** May indicate salicylate toxicity.
## Clinical Pearls
* The enteric coating delays absorption, so it is not suitable for rapid pain relief.
* Even with enteric coating, GI side effects and bleeding can still occur. Taking with food may further minimize GI upset, though it can delay absorption.
* Discontinue aspirin at least 5-7 days before elective surgery to reduce bleeding risk.
* Always consult the current prescribing information for the most up-to-date and detailed information.
