Hypertensive disorders are the most common medical complication of pregnancy, affecting approximately 10% of pregnancies in the UK. Pre-eclampsia — the most serious form — occurs in 2–6% of pregnancies and remains a leading cause of maternal and perinatal morbidity and mortality worldwide.
The renewed Women's Health Strategy, published on 15 April 2026, identifies maternal health outcomes as a priority area. Community pharmacy teams encounter pregnant women regularly — dispensing prescriptions, selling OTC products, and providing NHS blood pressure checks — making them part of the detection and management chain.
Definitions
| Condition | Definition | When it occurs |
|---|---|---|
| Chronic hypertension | BP ≥140/90 mmHg present before pregnancy or diagnosed before 20 weeks | Pre-existing |
| Gestational hypertension | New BP ≥140/90 mmHg after 20 weeks, without proteinuria or other organ involvement | After 20 weeks |
| Pre-eclampsia | New hypertension after 20 weeks PLUS proteinuria and/or evidence of organ dysfunction (liver, kidneys, platelets, brain) | After 20 weeks (rarely earlier) |
| Eclampsia | Pre-eclampsia complicated by seizures | Any time in late pregnancy or postpartum |
| HELLP syndrome | Haemolysis, Elevated Liver enzymes, Low Platelets — a severe variant of pre-eclampsia | Typically third trimester |
Why it matters for pharmacy
Pharmacy teams will encounter hypertensive disorders of pregnancy in three main contexts:
1. Dispensing antihypertensives in pregnancy
The NICE guideline on hypertension in pregnancy (NG133) recommends:
- Labetalol as first-line treatment (oral, starting at 100 mg twice daily)
- Nifedipine (modified-release) as second-line
- Methyldopa as third-line
Pharmacy teams should note:
- ACE inhibitors and ARBs are contraindicated throughout pregnancy — if a woman of childbearing age is dispensed these medicines, it is worth confirming pregnancy status
- Labetalol is contraindicated in asthma — nifedipine is used instead
- Methyldopa should be discontinued within 2 days of delivery (risk of postnatal depression)
- Atenolol is associated with fetal growth restriction and is not recommended
2. Aspirin prophylaxis
NICE recommends low-dose aspirin (75–150 mg daily from 12 weeks to delivery) for women at moderate or high risk of pre-eclampsia. Risk factors include:
| High risk (one factor = aspirin) | Moderate risk (two or more = aspirin) |
|---|---|
| Previous pre-eclampsia | First pregnancy |
| Chronic kidney disease | Age ≥40 |
| Autoimmune conditions (SLE, antiphospholipid syndrome) | BMI ≥35 at booking |
| Type 1 or type 2 diabetes | Family history of pre-eclampsia |
| Chronic hypertension | Pregnancy interval >10 years |
Pharmacy teams dispensing aspirin 75 mg to a pregnant woman should confirm the indication if not clear from the prescription context.
3. NHS blood pressure checks
Many community pharmacies offer free NHS blood pressure checks. While these are targeted at detecting chronic hypertension in the general population, a pregnant woman presenting for a BP check with a reading of ≥140/90 mmHg should be urgently referred to her midwife or maternity assessment unit — not simply recorded and followed up.
Warning signs for pharmacy teams
Pre-eclampsia can develop rapidly. Symptoms that should trigger urgent referral include:
- Severe headache not relieved by paracetamol
- Visual disturbances — flashing lights, blurred vision, spots
- Sudden swelling of face, hands or feet (oedema alone is common in pregnancy, but sudden onset is significant)
- Upper abdominal pain — especially right upper quadrant or epigastric (liver involvement)
- Nausea and vomiting in the second half of pregnancy (not morning sickness, which typically resolves by 16 weeks)
- Feeling generally unwell — a non-specific but important patient report
If a pregnant woman describes any of these symptoms at the pharmacy counter, advise her to contact her midwife or attend the maternity assessment unit immediately. Do not suggest paracetamol and review — pre-eclampsia can progress to eclampsia within hours.
OTC considerations in hypertensive pregnancy
| Product | Guidance |
|---|---|
| Ibuprofen / NSAIDs | Avoid throughout pregnancy; can worsen hypertension and reduce renal blood flow |
| Pseudoephedrine / phenylephrine (decongestants) | Avoid — vasoconstrictive effect can raise blood pressure |
| Paracetamol | Safe at standard doses; first-line for headache and pain |
| Antacids | Generally safe; avoid high-sodium preparations |
| Herbal remedies | Many have unknown effects on blood pressure in pregnancy; advise caution |
After delivery
Pre-eclampsia does not always resolve immediately after delivery. NICE recommends blood pressure monitoring for at least 6 weeks postpartum. Women who had pre-eclampsia are at increased long-term cardiovascular risk and should be offered an annual cardiovascular review.
Pharmacy teams seeing a postnatal woman collecting antihypertensives can check whether a follow-up review has been arranged and signpost to the GP if not.
Data context
PharmSee tracks 1,742 active pharmacy vacancies across England. Maternal health is not typically named as a pharmacy speciality in job listings, but every community pharmacist is expected to manage pregnancy-related dispensing and OTC queries safely.
For pharmacies offering blood pressure monitoring services near you, use PharmSee's pharmacy finder.
Caveats
Clinical guidance follows NICE NG133 (Hypertension in Pregnancy) and NG201 (Antenatal Care). Prevalence figures are from NICE and RCOG publications. Pre-eclampsia risk factor tables are from NICE guideline recommendations, not PharmSee data. PharmSee does not track pharmacy service provision for maternal health.
Sources: NICE NG133, NICE NG201, RCOG Green-top Guidelines, MBRRACE-UK Confidential Enquiry into Maternal Deaths, PharmSee vacancy database (April 2026), BBC News (15 April 2026).