toxylact: a02bx71 combinations with antipsychotics

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Carbenoxolone-containing combinations with psycholeptics (ATC A02BX71) are considered completely inappropriate during breastfeeding, and their use should be avoided in lactating women.file+2

Pharmacological class and indications

Carbenoxolone is a synthetic derivative of glycyrrhetinic acid with a steroid‑like structure, developed primarily as an antiulcer agent. It has been used systemically for peptic ulcer disease and other gastrointestinal mucosal conditions, and more recently mainly as topical or oral treatment for mouth and lip ulcers and oral mucositis. The ATC subgroup A02BX71 designates fixed combinations of carbenoxolone with psycholeptics (e.g. sedatives, antipsychotics), formulated to enhance antiulcer or mucosal protection effects.drugbank+5

Psycholeptics in such combinations may include drugs with sedative, antipsychotic or anxiolytic properties, which themselves often have central nervous system (CNS) adverse effects and lactation‑related concerns. No medicinal products from ATC A02BX71 are currently registered on the Bulgarian market.psychiatriapolska+2

Mechanism of action and toxicology

Carbenoxolone exerts anti‑inflammatory and cytoprotective effects on gastrointestinal and mucosal tissues, accelerating ulcer healing. It potently inhibits 11β‑hydroxysteroid dehydrogenase, thereby increasing local glucocorticoid activity and producing mineralocorticoid‑like effects (sodium retention, potassium loss). Systemic use is associated with fluid retention, elevation of blood pressure and significant electrolyte disturbances, particularly hypokalaemia.thekingsleyclinic+2

With systemic exposure, these mineralocorticoid‑like adverse effects can be clinically relevant in vulnerable patients such as pregnant and lactating women or those with cardiovascular/renal comorbidities. Psycholeptics added to carbenoxolone may add further toxicity, including CNS depression, extrapyramidal symptoms, metabolic effects and, for some antipsychotics, potential hematologic and cardiac risks.pubmed.ncbi.nlm.nih+3

Use in pregnancy and lactation

Available clinical data on carbenoxolone in pregnancy are limited, and systemic use is generally not recommended due to its impact on blood pressure and fluid–electrolyte balance. For the lactation period, systemic or high‑exposure use of carbenoxolone is considered unacceptable, given the lack of human lactation data, its mineralocorticoid activity and the possibility of significant adverse effects in the breastfed infant.drugs.ncats+3

Psycholeptics used in combination with carbenoxolone often carry their own lactation restrictions, and some antipsychotics and sedative agents are listed among medications that may be contraindicated or require strict caution during breastfeeding. In such fixed combinations, the risk assessment for the breastfed infant is guided by the most hazardous component; thus, the presence of both carbenoxolone and a psycholeptic reinforces the conclusion that these medicines are entirely unsuitable during breastfeeding.msdmanuals+3

Toxico‑lactation risk assessment

Within the TOXYLACT framework used on the Lactology Foundation site, carbenoxolone is classified in toxico‑lactation category IV, meaning “completely inappropriate for use during lactation.” For ATC A02BX71 products, this classification applies a fortiori, because the addition of a psycholeptic increases both maternal and infant risk (CNS depression, impaired infant arousal, potential effects on milk production and milk ejection, and additive cardiovascular/metabolic toxicity).file+2

When evaluating the toxico‑lactation risk of a fixed combination, the overall risk level is determined by the component with the poorest safety profile in lactation. In A02BX71 medicinal products, at least one component (carbenoxolone itself, and often also the psycholeptic) is clearly non‑recommended for nursing mothers, leading to a global recommendation to avoid their use and to choose safer alternatives.healthdirect+2

Clinical recommendations for breastfeeding women

In breastfeeding women, systemic use of carbenoxolone‑containing combinations with psycholeptics (A02BX71) should be avoided, and alternative therapies with established lactation safety should be selected for ulcer disease or mucosal lesions. If, in exceptional circumstances, exposure occurs, temporary interruption of breastfeeding should be strongly considered and individualized toxicological and pediatric monitoring is warranted.thekingsleyclinic+3

For the management of peptic ulcer disease and related conditions during lactation, standard agents with better established safety profiles (such as certain proton pump inhibitors or H2‑receptor antagonists) are generally preferred, in line with contemporary breastfeeding‑compatible pharmacotherapy guidance. Psychotropic comorbidities should be treated with single‑agent regimens using psychotropics with better characterised lactation data, rather than fixed combinations with carbenoxolone.mayoclinic+4

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