Laxatives/Stimulants - e.g. senna, bisocodyl, wetting agents like docusate (“colace”)
Bulk agents - high fiber foods that resist bacterial breakdown, need to increase fluid intake or constipation will worsen.
Lubricants - mineral oil for acute constipation or fecal impaction not for prolonged use
Hyperosmotic agents - agents pass through small bowel and draw water into the colon: sugars (laculose, sorbitol, mannitol, glycerin) or salts (polyethlene glycol (miralax).
Prokinetic drugs - decrease bowel transit time, e.g. metoclopramide.
Natural laxatives - fruits, juices, puddings, etc
Enemas - saline, tap water, soap suds, oil retention