VeriMomDois-je éviter methenamine pendant la grossesse ? | VeriMom
Methenamine is listed with a harmonised/suspected reproductive hazard (H361) in ECHA materials and registration/brief-profiles, so reproductive hazard is 'suspected' rather than confirmed. Human pharmacokinetic data show methenamine crosses the placenta (measured in umbilical cord blood and amniotic fluid), demonstrating placental transfer. For topical cosmetic use, systemic exposure is expected to be low but measurable (cosmetic dermal exposures estimated and CIR/Canada assessments indicate low risk at typical cosmetic concentrations). Sources: ECHA classification summary; human study showing placental passage; CIR/Canada cosmetic assessments.
ECHA regulatory hazard statements
- •H228
- •H317
What to use instead
Pregnancy-safe ingredients that serve a similar function:
FAQ
- methenamine est-il sûr pendant la grossesse ?
- Methenamine is listed with a harmonised/suspected reproductive hazard (H361) in ECHA materials and registration/brief-profiles, so reproductive hazard is 'suspected' rather than confirmed. Human pharmacokinetic data show methenamine crosses the placenta (measured in umbilical cord blood and amniotic fluid), demonstrating placental transfer. For topical cosmetic use, systemic exposure is expected to be low but measurable (cosmetic dermal exposures estimated and CIR/Canada assessments indicate low risk at typical cosmetic concentrations). Sources: ECHA classification summary; human study showing placental passage; CIR/Canada cosmetic assessments.
- methenamine est-il sûr pendant l'allaitement ?
- Harmonised/suspected reproductive classification (H361) supports 'suspected' hazard. Human data demonstrate methenamine is present in breast milk at concentrations similar to maternal plasma, showing demonstrated mechanism of transfer. However, for topical cosmetic use expected systemic absorption (and milk transfer) is low but measurable. Sources: ECHA classification; PubMed human milk data; CIR/Canada safety summaries.
- methenamine est-il sûr pour la peau de bébé ?
- Hazard remains 'suspected' (H361). Mechanistic concern is supported by demonstrated maternal→fetal/milk transfer in humans (relevant to infant exposure). Exposure (e) is increased for baby skin relative to adult because infants have a higher surface-area-to-weight ratio and an immature barrier; adult topical e is low but measurable, so baby skin exposure is scored one tier higher. CIR/Canada reviews found cosmetic uses safe only at low concentrations (e.g., CIR cited 0.16% max to limit formaldehyde release).
- Comment VeriMom évalue-t-il methenamine ?
- VeriMom évalue methenamine à 20/100 (risque élevé) sur la base du statut EU CosIng, des classifications ECHA et des études PubMed.
- Quelles sont les alternatives sûres à methenamine pendant la grossesse ?
- Consultez notre liste d'alternatives sûres à methenamine basée sur une fonction similaire et une classification sans risques connus.
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Avis Médical
Ces informations sont fournies à titre éducatif uniquement et ne constituent pas un avis médical. Les scores de sécurité sont basés sur des données accessibles au public et peuvent ne pas refléter tous les risques. Consultez toujours votre professionnel de santé avant d'utiliser tout produit pendant la grossesse ou l'allaitement.