what poison does claudius use on hamlet’s father
Hebenon Hebenon is the agent of death in Hamlet's father's murder, it sets in motion the events of the play. It is spelled hebona in the Quartos and hebenon in the Folios. This is the only mention of hebenon/hebona in any of Shakespeare's plays.
Toxicology Mathieu Orfila is considered the modern father of toxicology, having given the subject its first formal treatment in 1813 in his Traité des poisons, also called Toxicologie générale.[5]