Fig. 1.

Preparation of experimental loops in the rabbit ileum to determine the effect of lacidipine on cholera toxin. The first loop (1) contained sterile peptone water (negative control); the second loop (2) received challenge plus 200 μg of lacidipine; the third loop (3) was given challenge plus 100 μg of lacidipine, while the fourth loop (4) received only the challenge (positive control). Experiment was replicated five times in five different rabbits.