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Lycopodium clavatum exine microcapsules enable safe oral delivery of 3,4-diaminopyridine for treatment of botulinum neurotoxin A intoxication.

Scientists have been investigating the use of 3,4-diaminopyridine to reverse botulinum intoxication, but its narrow therapeutic window and poor pharmacokinetics have limited its use. To address these problems, researchers developed an oral delivery system using the exines from club moss spores. These microcapsules slowed the absorption of the drug, reduced seizures, and allowed for higher doses to be administered, which improved survival rates in mice with botulinum neurotoxin A intoxication. This new delivery platform could potentially have broad implications for the treatment of botulinum intoxication.

Harris TL et al (2016).
Chem Commun (Camb).
PubMed:
26906286