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Aspirin

An anti-platelet medication used to prevent stroke and heart attack in people with vascular risk factors.

Drug Class: cardiovascular

Aspirin is an anti-platelet medication that helps prevent blood clots. In neuro-ophthalmology, it's used for vascular conditions and prevention of stroke after transient vision loss.

Key Takeaways

  • Prevents blood clots
  • Used after transient vision loss from vascular causes
  • Part of stroke prevention
  • Low dose (81 mg) usually sufficient
  • Increases bleeding risk

Common Uses

How It Works

  • Inhibits platelet clumping
  • Reduces blood clot formation
  • Prevents vessel blockage
  • Single dose effect lasts days (platelets affected for their lifespan)

Typical Dosing

  • Low dose: 81 mg daily (baby aspirin)
  • Sometimes 325 mg
  • Take with food to reduce stomach upset
  • Consistent daily dosing important

Side Effects

Common

  • Stomach upset
  • Heartburn
  • Easy bruising
  • Minor bleeding

Serious

  • GI bleeding
  • Hemorrhagic stroke (rare)
  • Allergic reactions

Precautions

Avoid if:

  • Active GI bleeding
  • Bleeding disorder
  • Aspirin allergy
  • Before some surgeries

Use Caution if:

  • History of ulcers
  • On other blood thinners
  • Kidney disease
  • Asthma (some people)

Drug Interactions

  • Other blood thinners (increased bleeding)
  • Ibuprofen (may reduce aspirin effect if taken first)
  • NSAIDs (increased GI bleeding)

Important Points

  • Don't stop suddenly before surgery without medical advice
  • Tell all doctors and dentists you take aspirin
  • Report unusual bleeding
  • Prescription medications may replace aspirin for some patients

Medically Reviewed Content

This article meets our editorial standards

Written by:
Hashemi Eye Care Medical Team
Medically reviewed by:
Board-Certified Neuro-Ophthalmologist (MD, Neuro-Ophthalmology)
Last reviewed:
January 30, 2025