Kim Jong-nam, the half-brother of North Korean dictator Kim Jong-un, was carrying vials of the antidote to the VX nerve agent with which he was killed in Kuala Lumpur International Airport in February.
Testifying before a high court in the city this week, a Malaysian government toxicologist said Kim had 12 doses of atropine in his carry-on luggage when he was approached by two women who smeared the nerve agent onto his face.
Doan Thi Huong, a 29-year-old Vietnamese national, and Siti Aisyah, 25, from Indonesia, have pleaded not guilty of the murder of Mr Kim, who was returning to his home in Macau and travelling on a passport in the name of Kim Chol.
The two women have testified that they were told by a group of men that they were taking part in a prank for a television programme.
They were paid to approach Mr Kim in the airport’s departure area and wipe his face, but both women claim they were not aware they were applying a lethal nerve agent.