Please check your internet connection and try again.
# Liquid Paraffin + Milk of Magnesia + Sodium Picosulfate
## Overview
This combination is a multi-modal osmotic and stimulant laxative preparation. It acts by lubrication (paraffin), osmotic draw of fluid into the bowel (magnesium hydroxide/milk of magnesia), and direct stimulation of colonic peristalsis (sodium picosulfate).
## Primary Indications
Short-term treatment of chronic or refractory constipation; bowel preparation for clinical procedures (per institutional protocol).
## Adult Dosing
Standard dosing for constipation is typically 15–30 mL taken at bedtime. Follow specific manufacturer or local clinical guidelines, as concentration/formulations of the combination vary significantly. Do not exceed 30 mL/24 hours unless directed by a physician.
## Pediatric Dosing
- **Children >12 years:** Use adult dosing (15–30 mL).
- **Children <12 years:** Not recommended without specialist pediatric supervision.
- *Note:* Liquid paraffin is generally avoided in young children due to the risk of aspiration and interference with fat-soluble vitamin absorption.
## Dose Adjustments
- **Renal Impairment:** Use with extreme caution. Magnesium accumulation can lead to hypermagnesemia in patients with moderate-to-severe renal impairment (CrCl <30 mL/min).
- **Hepatic Impairment:** No specific adjustment, but use caution in patients with hepatic encephalopathy or electrolyte imbalances.
## Contraindications
- Intestinal obstruction, ileus, or suspected surgical abdomen.
- Acute inflammatory bowel disease (ulcerative colitis, Crohn’s).
- Severe dehydration or electrolyte imbalance.
- Known hypersensitivity to any components.
- Children with dysphagia or risk of aspiration (risk of lipid pneumonia).
## Adverse Effects
- **Common:** Abdominal cramping, flatulence, diarrhea, nausea.
- **Serious:** Hypermagnesemia (lethargy, muscle weakness, hypotension), hypokalemia (with chronic overuse), lipid pneumonia (if aspirated), and rectal irritation.
## Key Drug Interactions
- **Absorption:** Liquid paraffin may decrease the absorption of fat-soluble vitamins (A, D, E, K).
- **Chelation:** Magnesium salts can decrease the absorption of tetracyclines, fluoroquinolones, and bisphosphonates. Space doses by at least 2 hours.
- **Diuretics:** Potential for additive hypokalemia if used with loop or thiazide diuretics long-term.
## Monitoring
- Monitor bowel patterns and consistency.
- Assess for signs of electrolyte disturbance (dizziness, muscle cramps) if used frequently.
- Renal function in elderly or patients with pre-existing renal issues.
## Clinical Pearls
- **Lipid Pneumonia Warning:** Never administer in a supine position or to patients with swallowing difficulties.
- **Hydration:** Patients must increase water intake significantly to allow the osmotic components to function safely.
- **Short-term use:** This combination is intended for intermittent use. Chronic reliance may lead to "lazy bowel" syndrome (atony).
- **Timing:** Effects typically occur within 6–12 hours.
***
*Disclaimer: This information is for educational purposes. Dosing and availability of combination products vary significantly by region and manufacturer. Always verify specific product concentrations and current institutional, regional, or national prescribing guidelines before administration.*
