First timer here... I've been instructed to take Pico Salax for my colonoscopy (once in the afternoon, then again the very early morning of), but my GI also wants 2 doses of laxative pill taken along with, they said any kind and weren't really clear on what time I take them. Does it make more sense to take the laxative pill an hour or two BEFORE the Pico Salex, or after?? And what is a good laxative to use, I was thinking a more gentle one, senokot maybe?, because doesn't it seem like overkill..