How long can you defecate after drinking laxatives before colonoscopy

After drinking laxatives before colonoscopy, it usually takes 30 minutes to 1 hour to start defecating, but the specific time varies from person to person.

During colonoscopy, the subject usually needs to take laxatives as prescribed to promote intestinal emptying and facilitate examination. Generally speaking, within 30 minutes to 1 hour after drinking laxatives, the drug will gradually exert its effect, stimulating intestinal motility, thus causing defecation. However, due to the different types of laxatives each person takes and their different sensitivities to the drugs, some people may produce stool in a shorter time while others may take longer, so the specific time to defecate varies from person to person.