What is the meaning of "We administered a ladaad to the Messenger of Allah, may Allah bless him and grant him peace" in the context of the hadith which refers to punishing those who administered it to him during his final illness, and was that a disciplinary action and not a retaliation?

The family of the Prophet (peace and blessings of Allah be upon him) administered medicine to him when he was ill, after he had fainted, believing he had pleurisy. He had forbidden them before he fainted, but they did not obey. When he regained consciousness, he ordered that everyone present be given the same medicine, except for Al-Abbas, as a punishment for their disobedience to his prohibition.