Educational draft · awaiting clinical reviewThe full textbook explains uncertainty but does not replace live national or local guidance, specialist advice, or current prescribing information.
Assess breastfeeding problems through observed milk transfer and infant wellbeing, protect maternal treatment and select lactation-compatible medicines using the infant's age, health and exposure risk.
Breastfeeding support begins with the parent's experience and goals. Ask whether feeding hurts, whether the infant seems able to attach and swallow, how feeding fits around recovery and sleep, and what help has already been tried. Avoid making the family prove commitment before offering practical assistance. The immediate task is adequate nutrition and a sustainable plan; expressed milk, supplementation or a revised feeding choice may form part of that plan when clinically indicated or preferred.
Watch a feed with consent and offer hands-on assistance only after explanation and permission. Observe how the baby approaches the breast, opens the mouth, attaches, sucks and swallows. Ask about nipple pain during and after feeding and inspect when the history suggests trauma or infection. Adjusting position and attachment can reduce pain and improve transfer, but persistent difficulty should prompt assessment for infant illness, oral or anatomical problems and maternal factors rather than repeated identical advice.
Interpret output and weight in context. Early weight loss occurs, but an unexpectedly large loss, failure to regain appropriately or deteriorating hydration warrants a feeding and clinical review. A baby who remains latched for prolonged periods may still transfer little milk. Conversely, frequent feeding alone does not prove insufficient supply. Look at alertness, swallowing, urine, stools and the trajectory, and arrange timely reassessment after an intervention so that the plan's effect is actually measured.
Persistent pain, repeated slipping from the breast, little audible swallowing or ineffective feeding despite long feeds suggests the need for skilled observation.
Reduced output, increasing sleepiness or a concerning weight pattern should lead to assessment of the baby's health and hydration as well as technique.
New drowsiness, poor feeding, inadequate weight gain or breathing change after maternal medicine exposure warrants clinical review and consideration of other neonatal causes.
Major postpartum bleeding, ongoing illness, endocrine symptoms or ineffective milk removal may explain low production and change the appropriate management.
Check all combination products for duplicate paracetamol. Lower body weight, malnutrition, hepatic disease or substantial alcohol exposure may require a lower maximum and an individual prescribing plan.
Avoid with active gastrointestinal ulceration, significant renal injury, NSAID hypersensitivity or relevant bleeding risk; assess asthma history and interacting anticoagulation. Do not combine with another NSAID.
Expression depends on technique, equipment and let-down as well as production, so one disappointing pump session cannot independently diagnose insufficient milk.
Advice for a healthy term infant may need modification for a premature baby with respiratory disease or impaired clearance, even when the maternal prescription is unchanged.
Withholding useful treatment can worsen illness and feeding capacity; the decision should compare realistic treatment options and the risks of undertreatment.
Herbal lactation products may have uncertain composition, interaction and efficacy data, so they should be included in the same careful medication history.
Equating frequent feeding or soft breasts with proven low supply without assessing milk transfer, output and growth.
Starting a galactagogue before observing feeding or investigating a clear maternal or infant contributor.
Recommending routine cessation of breastfeeding for every prescription without checking current lactation-specific evidence.
Prescribing co-codamol without recognising that its codeine component is unsuitable during breastfeeding.
Applying healthy-term-infant advice automatically to a very premature or medically unstable baby.
Allowing a short domperidone trial to become indefinite prescribing without assessing benefit, interactions and a stopping plan.
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A breastfeeding mother has persistent low supply despite specialist feeding assessment and effective milk-removal support. No domperidone contraindication is identified and a medicine trial is agreed. Which initial regimen matches SPS advice?
National guidance is shown before implementation-dependent detail. Typical adult dose examples remain subject to patient factors, contraindications and the live BNF or specialist protocol. Source check completed 7 Sept 2026; clinical approval remains outstanding.
Editorial contact: Doctor’s Passport editorial team. Source-check date is separate from clinical approval. Report a content problem · Content changes
Milk production depends in part on effective removal. When mother and infant are separated, or transfer is ineffective, explain hand expression and an appropriate expressing routine, checking comfort and equipment fit. Explore painful feeding, infrequent removal, severe maternal illness, major blood loss, retained placental tissue, endocrine disease or medicines that may contribute to supply problems. Low supply should not be treated as a single hormonal deficiency without this assessment.
Medicine advice should consider the mother and infant together. Record the exact drug, dose, formulation, route and duration, and the baby's gestation, postnatal age, health and feeding proportion. Maternal illness also has consequences if treatment is delayed. SPS recommendations commonly apply to full-term healthy infants; premature or medically vulnerable babies may have reduced clearance or different risks. When uncertainty matters, seek UK Drugs in Lactation Advisory Service advice rather than assuming all medicines are prohibited.
Small transfer into milk does not automatically mean clinically important harm, and a statement in a product leaflet may reflect limited licensing data rather than a requirement to stop feeding. Equally, a reassuring class label does not make every preparation or combination suitable. Check combination analgesics, over-the-counter cold remedies and herbal supplements. Long half-lives, active metabolites, accumulation and infant sedation can matter more than simply choosing a dose immediately after a feed.
Galactagogues have a limited role after an adequate assessment and non-drug support. Domperidone is used off label in the UK when a clinician judges that medication is warranted. Discuss the expected modest or uncertain benefit, cardiac contraindications, interactions and a review date. Higher doses are not a routine response to disappointment. Continuing treatment or stopping after prolonged use needs an individual plan, particularly when mood or withdrawal symptoms emerge.
Avoid with known QT prolongation, important cardiac disease, significant electrolyte abnormalities, relevant interacting drugs or moderate to severe hepatic impairment. Discuss reported psychiatric withdrawal symptoms, particularly after higher-dose or prolonged exposure.