toxylact: a02ab07 aluminium glycinate
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Aluminium glycinate (ATC A02AB07) is generally considered compatible with breastfeeding, because aluminium antacids are poorly absorbed from the maternal gut and only very small amounts, if any, are expected to reach breast milk or the infant.
Overview of aluminium glycinate
Aluminium glycinate (dihydroxyaluminium aminoacetate) is an antacid used to relieve heartburn, dyspepsia, gastro‑oesophageal reflux and as adjuvant therapy in peptic ulcer disease. Like other aluminium-containing antacids, it acts locally in the stomach by neutralising gastric acid and does not require systemic absorption to exert its therapeutic effect.
Transfer into breast milk
Aluminium from antacids has very low oral bioavailability, so only small fractions are absorbed into maternal systemic circulation. Aluminium and magnesium are naturally present in breast milk and infant foods, and available data indicate that maternal use of aluminium antacids does not significantly increase aluminium levels in breast milk. Clinical experience and expert reviews therefore conclude that antacids, including aluminium salts, are acceptable during lactation with no need for specific precautions.
Potential effects on the breastfed infant
Because exposure from maternal aluminium glycinate is expected to be minimal, clinically relevant toxicity in breastfed infants is unlikely. Expert sources report extensive experience with aluminium-containing antacids during breastfeeding without documented adverse effects in infants, and no routine infant monitoring is recommended when these drugs are used at standard doses. As with any maternal medication, clinicians may advise observation for non‑specific gastrointestinal symptoms (changes in stool pattern, irritability), although such reactions are not well documented for aluminium antacids.
Maternal considerations during lactation
Antacids are considered first‑line pharmacological options for heartburn and dyspepsia in breastfeeding women, after lifestyle and dietary measures. Treatment with aluminium-containing antacids, including aluminium glycinate, should follow general principles: use the lowest effective dose, limit the duration to symptom control, and avoid chronic high-dose aluminium exposure in women with significant renal impairment. If symptoms persist or long-term acid suppression is needed, H2-receptor antagonists or proton pump inhibitors with evidence of safety in lactation may be considered as alternatives.
Risk assessment and professional recommendations
Current lactation references and national medicines advisory services state that antacids and alginates are compatible with breastfeeding and are preferred over systemically absorbed alternatives for short-term dyspepsia management. Aluminium hydroxide is explicitly listed as a preferred antacid during breastfeeding, and aluminium glycinate is expected to share a similar safety profile based on its pharmacology and route of action. Overall, when clinically indicated and used as directed, aluminium glycinate can be considered a low‑risk option for treating gastric acidity in lactating women.



