Liquid%2525252525252525252520paraffin

# Liquid Paraffin (Mineral Oil) ## Overview Liquid paraffin is a highly refined, non-absorbable mixture of saturated hydrocarbons. It acts as a lubricant laxative by coating the stool, reducing water absorption from the colon, and softening the fecal mass to facilitate easier defecation. ## Primary Indications * Short-term management of occasional constipation. * Management of fecal impaction or chronic constipation (often in combination with stool softeners/laxatives). ## Adult Dosing * **Standard dose:** 15 to 30 mL (1 to 2 tablespoons) orally once daily or in divided doses. * **Maximum:** Generally not to exceed 45 mL/day due to risk of lipid aspiration and nutrient malabsorption. ## Pediatric Dosing * **Ages 6–12 years:** 5 to 15 mL orally once daily at bedtime. * **Under 6 years:** Generally not recommended unless directed by a pediatrician. Risk of aspiration pneumonia is significantly higher in this population. ## Dose Adjustments * **Geriatric/Debilitated patients:** Use with extreme caution. Start at the lowest end of the dosing range due to high risk of aspiration pneumonia and fecal incontinence (leakage). * **Renal/Hepatic impairment:** No specific adjustments required, but monitor for electrolyte disturbances or prolonged use risks. ## Contraindications * **Aspiration risk:** Patients with dysphagia, neuromuscular disorders, or those prone to regurgitation (severe risk of lipoid pneumonia). * **Abdominal symptoms:** Presence of undiagnosed abdominal pain, nausea, vomiting, or signs of bowel obstruction/appendicitis. * **Bowel obstruction:** Known or suspected intestinal obstruction. * **Pregnancy/Lactation:** Use is generally avoided due to potential for reduced absorption of fat-soluble vitamins (A, D, E, K). ## Adverse Effects * **Lipoid pneumonia:** Caused by accidental aspiration (especially if taken at bedtime). * **Anal leakage:** Pruritus ani, soiling, and seepage of oil through the anal sphincter. * **Nutritional deficiencies:** Long-term use impairs the absorption of fat-soluble vitamins. * **GI:** Abdominal cramps, diarrhea, and nausea. * **Foreign-body reaction:** Rare granulomatous reactions in the intestinal mucosa or mesenteric nodes (paraffinoma) with prolonged use. ## Key Drug Interactions * **Fat-soluble vitamins (A, D, E, K):** Mineral oil may reduce the absorption of these vitamins if taken concurrently; space doses by 2–4 hours. * **Docusate:** Avoid concurrent use; liquid paraffin acts as a solvent and may increase systemic absorption of docusate, which can lead to hepatic toxicity. * **Oral contraceptives/Warfarin:** Potential for decreased absorption of these drugs due to increased intestinal transit time. ## Monitoring * Monitor bowel regularity and consistency of stools. * Monitor for perianal skin irritation. * Assess for signs of respiratory distress if there is a suspicion of aspiration. * Avoid prolonged use (>7 days). ## Clinical Pearls * **Aspiration Risk:** Advise patients to never take liquid paraffin while lying down or immediately before bed. * **Administration:** It can be chilled or mixed with fruit juice to improve palatability. * **Not a first-line agent:** Due to the risk of aspiration and vitamin malabsorption, osmotic laxatives (e.g., Polyethylene Glycol 3350) are generally preferred for chronic constipation. * **Dependency:** Long-term regular use can lead to dependency and "lazy bowel" syndrome. *** *Disclaimer: This information is for educational purposes only and does not constitute medical advice. Dosing protocols may vary by institution. Always verify specific patient details and current prescribing information through a recognized clinical database (e.g., Lexicomp, Micromedex) or local hospital guidelines before administration.*