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Acetyl Salicylic Acid

Aspirin (acetylsalicylic acid) is a medicine used to reduce the chance of a blood clot or to relieve pain.

Clinical information

Common uses

  • low daily dose to prevent blood clots, heart attack and stroke
  • pain relief at higher doses
  • preventing pre-eclampsia in pregnancy

Common side effects

  • indigestion and stomach aches
  • bleeding more easily than usual

Cautions

  • do not give to children 15 or under (Reye's syndrome risk)
  • may not suit people with stomach ulcers, asthma or bleeding problems
  • can rarely cause stomach ulcers or bleeding inside the stomach
  • limit alcohol — it increases the risk of side effects

Interactions

  • anticoagulants such as warfarin or rivaroxaban
  • some steroid medicines
  • some antidepressants
  • some blood pressure medicines
  • methotrexate
  • other NSAIDs such as ibuprofen or naproxen

Pregnancy: low-dose aspirin may be recommended; higher pain-relief doses not recommended

Reference information, not medical advice — always follow your doctor or pharmacist. Source: NHS Medicines A–Z, nhs.uk/medicines/aspirin (accessed 2026-08-16)

Approved brands & formulations12

Brand nameDosage formStrengthImporterCategory
Acetyl Salicylic AcidTablet325 mgPOM
Acetyl Salicylic AcidTablet50 mgPOM
Acetyl Salicylic AcidTablet300 mgPOM
Acetyl Salicylic AcidTablet100 mgPOM
Acetylsalicylic Acid (Aspirin)Tablet75 mgPOM
Acetylsalicylic Acid (Aspirin)Tablet150 mgPOM
CardiprinTablet100 mgauthorized medicine importersPOM
Delisprin 75Tablet (Delayed Release)75 mgauthorized medicine importersPOM
DisprinTablet ( Uncoated Effervescent )350mgauthorized medicine importersPOM
Ecosprin-150Tablet ( Enteric coated )150 mgauthorized medicine importersPOM
Ecosprin-75Tablet ( Enteric coated )75 mgauthorized medicine importersPOM
WinspirinTablet ( Dispersible )300mgADK Pharmaceutical Company Pvt LtdPOM
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