Scheduled for colonoscopy but afraid magnesium citrate won't clear my colon. docqulace and bisacodyl failed to evacuate colon. will the citrate work?

AlwaysAGuess; agent,: dose & response relationships (with all the usual complex individual variables). A full bottle of citrate of magnesia will likely be far more effective than the other agents, especially if one stays physically active, fasts, take 2 days prior & chase with another bottle 1 day prior. Just keep up clear liquids. Awareness of heart beats both a focus & a self-distraction (from other greater) issues.