A larger 20-tablet pack of Dulcolax for adults who use it occasionally and want better value than the smaller 8-pack. These tablets contain bisacodyl 5mg, a stimulant laxative that helps trigger bowel movements when constipation is temporary or occasional. What it does Designed to be taken at night so it can work by morning. Typical onset is 6–12 hours, making it useful when you want relief the next day. Key Details Strength: 5mg bisacodyl per tablet Pack size: 20 tablets Type: Gastro-resistant tablets Use: Short-term constipation relief Adults 18+: Usually start with 1 tablet, may increase to 2 if needed Best For Adults who get constipation now and then People wanting a better-value larger pack Those who prefer tablets over liquid laxatives Important Notes Swallow whole with water — do not chew or crush. Avoid taking close to milk, antacids, or acid-reducing medicines. Not intended for daily long-term use. If symptoms keep returning, seek medical advice.