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# Liquid Paraffin
## Overview
Liquid paraffin, also known as mineral oil, is a highly refined mineral oil used as an emollient and lubricant. It works by coating the stool, making it softer and easier to pass.
## Primary Indications
* Constipation
## Adult Dosing
* **Oral:** 10-45 mL once daily, typically at bedtime. Dosing may be adjusted based on response.
* **Rectal (as enema):** Administer as a retention enema (e.g., 100-200 mL).
## Pediatric Dosing
Dosing in children should be guided by a healthcare professional and is often lower than adult doses.
* **Oral:** Typically 5 mL to 15 mL once daily, depending on age and weight. Strict adherence to age-appropriate recommendations is crucial.
## Dose Adjustments
No dose adjustments are typically required for renal or hepatic impairment. However, the risk of aspiration is higher in certain populations, and administration methods may need to be modified.
## Contraindications
* Known hypersensitivity to liquid paraffin.
* Concurrent use of docusate sodium in patients with impaired swallowing.
* In patients with paralytic ileus or intestinal obstruction.
* Aspiration risk: Caution in individuals with gastroesophageal reflux, dysphagia, or impaired gag reflex due to the risk of lipid pneumonitis if aspirated.
## Adverse Effects
* **Common:** Abdominal cramping, nausea, vomiting, diarrhea, anal leakage.
* **Less Common/Serious:** Lipid pneumonitis (if aspirated), vitamin malabsorption (with chronic use, particularly fat-soluble vitamins A, D, E, K).
## Key Drug Interactions
* **Fat-soluble vitamins:** Chronic oral use may decrease absorption of vitamins A, D, E, and K. Consider separate administration times or vitamin supplementation if clinically indicated.
* **Docusate sodium:** Concurrent use in patients with swallowing difficulties increases the risk of aspiration and lipid pneumonitis.
## Monitoring
* Bowel movements (frequency, consistency).
* Signs of abdominal discomfort.
* For chronic use, monitor for signs of vitamin deficiency.
* Monitor for signs of aspiration in at-risk individuals.
## Clinical Pearls
* Administer oral liquid paraffin at bedtime to minimize anal leakage during the day.
* Advise patients to remain upright for at least 1 hour after taking oral liquid paraffin to reduce aspiration risk.
* Use with caution in elderly patients and those with neurological impairments due to increased aspiration risk.
* Avoid prolonged use without medical supervision due to potential for vitamin malabsorption and dependence.
* For rectal administration, ensure the patient retains the enema for the recommended duration.
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**Disclaimer:** This information is intended for healthcare professionals and is not a substitute for professional medical advice. Always consult the most current prescribing information and specific institutional protocols before administering any medication.
