: MiraLAX (polyethylene glycol), Phillips' Milk of Magnesia (magnesium hydroxide), and magnesium citrate.

: These add soluble fiber to your stool, making it larger and softer, which naturally triggers bowel contractions. They are considered the gentlest option.

: Metamucil (psyllium), Citrucel (methylcellulose), and FiberCon (calcium polycarbophil).

Laxatives are categorized by how they work in your body. Common options include:

: These activate the nerves and muscles in your colon to force contractions. They provide faster relief but are considered "harsher" and should only be used for a few days.

Nonprescription laxatives for constipation: Use with caution

: These draw water into the colon from surrounding tissues to soften stool for easier passage.

: These add moisture and fats directly to the stool to make it easier to pass without straining. Examples : Colace (docusate). Typical Working Times How Long It Takes Enemas / Suppositories 15 minutes to 1 hour Stimulant Tablets 6 to 12 hours Lubricants (Mineral Oil) 6 to 8 hours Osmotics (Gradual) 1 to 3 days Bulk-forming / Softeners 12 hours to 3 days Important Safety Considerations