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## Ecospirin (Aspirin, Enteric-Coated)
### Overview
Ecospirin is an enteric-coated formulation of aspirin, a nonsteroidal anti-inflammatory drug (NSAID) that inhibits cyclooxygenase (COX) enzymes, thereby reducing prostaglandin synthesis. The enteric coating is designed to delay release and absorption until the drug reaches the small intestine, potentially reducing gastric irritation.
### Primary Indications
* **Cardiovascular prophylaxis:** Prevention of myocardial infarction and stroke in patients with established cardiovascular disease or risk factors.
* **Pain and inflammation:** Management of mild to moderate pain and inflammatory conditions (though other NSAIDs or acetaminophen are often preferred due to GI safety).
* **Rheumatic fever prophylaxis:** Prevention of recurrent episodes.
### Adult Dosing
* **Cardiovascular prophylaxis:** 75 mg to 100 mg once daily. Higher doses (e.g., 325 mg) may be used in specific acute situations or per physician discretion, but lower doses are generally preferred for long-term use to minimize bleeding risk.
* **Pain and inflammation:** Doses vary widely depending on the condition. For mild pain, 325 mg to 1000 mg every 4-6 hours as needed. For inflammatory conditions, higher doses may be required, up to 4000 mg to 6000 mg daily in divided doses, but this is less common with enteric-coated formulations due to GI risk.
* **Rheumatic fever prophylaxis:** 100 mg to 200 mg once daily.
### Pediatric Dosing
Aspirin is generally **contraindicated** in children and adolescents with viral infections (e.g., influenza, varicella) due to the risk of Reye's syndrome. Specific dosing for approved indications in children is limited and should be guided by expert consultation or specific pediatric protocols.
### Dose Adjustments
* **Renal impairment:** Use with caution. Severe renal impairment may warrant dose reduction or avoidance.
* **Hepatic impairment:** Use with caution.
### Contraindications
* Hypersensitivity to aspirin, NSAIDs, or salicylates.
* Active peptic ulceration or gastrointestinal bleeding.
* Children and adolescents with viral infections (risk of Reye's syndrome).
* Severe hepatic or renal impairment.
* Asthma, urticaria, or allergic-type reactions after taking aspirin or other NSAIDs.
* Hemophilia and other bleeding disorders.
### Adverse Effects
* **Gastrointestinal:** Dyspepsia, heartburn, nausea, abdominal pain, ulceration, bleeding, perforation.
* **Hematologic:** Increased bleeding time, bruising, petechiae, epistaxis, purpura, prolonged bleeding from wounds.
* **Hypersensitivity:** Bronchospasm, dyspnea, urticaria, angioedema.
* **Auditory:** Tinnitus, hearing loss (especially with higher doses).
* **Other:** Dizziness, headache, confusion, Reye's syndrome (in children with viral infections).
### 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; concurrent use is generally not recommended.
* **Corticosteroids:** Increased risk of GI ulceration and bleeding.
* **Selective serotonin reuptake inhibitors (SSRIs):** Increased risk of bleeding, particularly in the GI tract.
* **Antihypertensives (e.g., ACE inhibitors, ARBs, beta-blockers):** Aspirin may decrease their efficacy.
* **Methotrexate:** Aspirin can decrease methotrexate clearance, increasing toxicity.
* **Uricosuric agents (e.g., probenecid):** Aspirin can antagonize their uricosuric effect.
* **Valproic acid:** Aspirin can displace valproic acid from plasma proteins, increasing free valproate levels.
### Monitoring
* **GI symptoms:** Monitor for signs of dyspepsia, abdominal pain, or blood in stool.
* **Bleeding:** Monitor for signs of increased bruising, petechiae, epistaxis, or prolonged bleeding.
* **Renal function:** Monitor in patients with pre-existing renal disease or risk factors.
* **Liver function:** Monitor in patients with hepatic impairment.
* **Tinnitus/hearing changes:** May indicate excessive dosage.
### Clinical Pearls
* The enteric coating is intended to reduce gastric irritation, but does not eliminate the risk of GI bleeding or ulceration, especially with higher doses or long-term use.
* Do not crush or chew enteric-coated aspirin; swallow whole.
* Due to the risk of Reye's syndrome, aspirin should be avoided in children and adolescents with viral illnesses.
* For acute pain or fever, acetaminophen or other NSAIDs are often preferred in pediatric populations.
* When used for cardiovascular prophylaxis, consistency is key. If a dose is missed, the patient should generally take the next dose as scheduled and not double the dose.
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*Disclaimer: This information is intended for healthcare professionals. Always consult the most current prescribing information and relevant clinical guidelines before making any treatment decisions.*
