Westenberg had been scheduled to compete on the track in the Men’s C4-5 1000m Time Trial and the Men’s C4 4000m Individual Pursuit.
New Zealand Paralympic Team Chef de Mission Raylene Bates said while this was a difficult situation, the priority is the health and safety of Westenberg.
“The medical team has worked really hard this week to aid Ben’s recovery – but unfortunately the decision had to be made to withdraw him from competition,” Bates said.
“Ben has been going really well and we are all hugely disappointed he won’t make his Paralympic debut at Paris 2024, but we are confident he will be back.”