Which laxative should I use?
Although laxatives have been around for a long time, there's a lack of high-quality evidence about exactly how effective they are and whether certain laxatives are better than others.
Unless there's a reason why specific laxatives may be more suitable than others (see below), most adults should try using a bulk-forming laxative first. These usually start to work after about two or three days.
If your stools remain hard, try using an osmotic laxative in addition to – or instead of – a bulk-forming laxative. If your stools are soft, but are still difficult to pass, try taking a stimulant laxative in addition to a bulk-forming laxative.
Osmotic laxatives usually start to work after about two or three days, while stimulant laxatives usually have an effect within six to 12 hours.
Speak to your GP or pharmacist if you're unsure which laxative to use. Also see your GP if you're still constipated after trying all of the different types of laxative, or if you think your child might benefit from taking laxatives.
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