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# Liquid Paraffin
## Overview
Liquid paraffin, a mineral oil, is a lubricant laxative. It coats the intestinal wall, softening fecal mass and easing defecation.
## Primary Indications
Constipation.
## Adult Dosing
* **Oral:** 10 mL to 30 mL once daily, typically at bedtime. Maximum dose is generally not well-defined but should be used cautiously and for short durations.
## Pediatric Dosing
* **Oral:**
* 1 to 12 years: 5 mL to 10 mL once daily, typically at bedtime.
* Under 1 year: Use with caution and under medical supervision. Dosing is variable and depends on clinical judgment.
## Dose Adjustments
No specific dose adjustments are typically required for renal or hepatic impairment.
## Contraindications
* Hypersensitivity to liquid paraffin.
* Conditions where abdominal pain, nausea, vomiting, or fever are present.
* Ileus or intestinal obstruction.
* Aspiration risk (e.g., in individuals with impaired gag reflex, debilitated patients, or those with gastroesophageal reflux).
## Adverse Effects
* Anal leakage, soiling, and irritation.
* Abdominal cramps, bloating, and diarrhea.
* Nausea.
* **Lipoid pneumonia:** A serious risk, especially with chronic use or in individuals with impaired swallowing or a risk of aspiration. This can occur if the oil is inhaled into the lungs.
* Malabsorption of fat-soluble vitamins (A, D, E, K) with prolonged, regular use.
## Key Drug Interactions
* **Mineral Oil:** Concomitant use of other mineral oil products (e.g., nasal sprays, topical emollients) can increase the risk of systemic absorption and adverse effects.
* **Fat-Soluble Vitamins:** May reduce the absorption of fat-soluble vitamins (A, D, E, K) if taken concurrently. Separate administration by at least 2 hours.
* **Other Laxatives:** Concomitant use may lead to excessive fluid loss and electrolyte imbalance.
## Monitoring
* Bowel movements, frequency, and consistency.
* Signs of abdominal distension or pain.
* Signs of aspiration or respiratory distress, particularly in at-risk individuals.
* Electrolytes and nutritional status if used long-term.
## Clinical Pearls
* Administer at bedtime to minimize disruption and potential for leakage during the day.
* Avoid administration immediately before lying down due to aspiration risk.
* Should generally be used for short-term management of constipation. Chronic use is discouraged due to risks of lipoid pneumonia and vitamin malabsorption.
* Educate patients about the potential for anal leakage.
* Consider alternative laxatives for long-term management.
**Disclaimer:** This information is intended for healthcare professionals. Always consult the official prescribing information and current guidelines for complete and up-to-date details.
