Safety of medicinal comfrey cream preparations (Symphytum officinale s.l.): The pyrrolizidine alkaloid lycopsamine is poorly absorbed through human skin

Kuchta, KennyKennyKuchtaSchmidt, MathiasMathiasSchmidt2021-04-142021-04-142020https://resolver.sub.uni-goettingen.de/purl?gro-2/82453enSafety of medicinal comfrey cream preparations (Symphytum officinale s.l.): The pyrrolizidine alkaloid lycopsamine is poorly absorbed through human skinjournal_article10.1016/j.yrtph.2020.104784