Jockey Steven Pateman has been taken to hospital with concussion after a fall in a maiden hurdle at Warrnambool.

Pateman was riding the $2.50 favourite Sir Issac Newton who was in front when he fell at the final jump in Tuesday's Carlton Draught Maiden Hurdle (3200m).

The jockey was ruled out of the remainder of Tuesday's all-jumps program on the opening day of the two-day carnival and was taken to the Warrnambool hospital for further tests and observation.

Pateman was to ride Zed Em for trainer Patrick Payne in the day's feature, the Grand Annual Steeplechase (5500m) and has been replaced by Aaron Lynch.

Sir Isaac Newton suffered a fractured shoulder in the fall and was euthanised.