Aspirin (low-dose)

Pregnancy & gynaecology-specific. Every dose row is source-referenced; verify against institutional protocols.

Aspirin (low-dose)Antiplatelet

Regimens checked: 2026-10-17. Each indication has its own preparation, limits and safety checks.

Aspirin (low-dose): indication-specific regimens
Indication	Dose	Route	Frequency	Duration / preparation	Maximum	Monitoring / cautions
NICE regimen for pre-eclampsia prevention in women meeting high/moderate-risk criteria NICE · NG133checked	75–150 mg	Oral	Once daily	From 12 weeks until birth (NICE NG133); use a single named prevention protocol · Swallow the prescribed low-dose tablet; do not substitute analgesic-dose aspirin Some other named prevention protocols stop at 36 weeks. Choose and document one start/stop protocol rather than prescribing a fixed number of weeks irrespective of gestation.	150 mg/day in this NICE regimen	Monitor Adherence, bleeding, allergy and the evolving obstetric risk assessment Contraindications / cautions Aspirin allergy/NSAID hypersensitivity, active significant bleeding or relevant bleeding disorder

Pregnancy safety

Safe at low dose in pregnancy

Lactation

Low-dose indication and maternal/infant risks require review; avoid extrapolating this row to analgesic doses.