Some people will require laxatives to achieve a softly formed stool. It is important to avoid excessive straining that may further weaken the pelvic floor muscles. There are many different laxatives available. In general it is best to avoid stimulant laxatives that contain senna or cascara for long term use. The osmotic laxatives (such as Epsom salts) are safer long term. Sorbitol is a safe long term laxative that occurs naturally in apple, pear and prune juice. It is also used as a substitute sweetener in confectionary. Liquorice contains anthraquinones, another laxative, but this is not recommended for long term use. The laxative guide which follows will help in the choice of a safe option.