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# Calamine Lotion ## Overview Calamine lotion is a topical protectant and antipruritic agent consisting primarily of zinc oxide and ferric oxide. It provides a cooling, soothing sensation upon evaporation and acts as a mild astringent for minor skin irritations. ## Primary Indications * Relief of itching, pain, and discomfort associated with minor skin irritations. * Poison ivy, poison oak, and poison sumac exposure. * Insect bites or stings. * Minor sunburns. ## Adult Dosing * Apply a thin layer to the affected area. * Frequency: 3 to 4 times daily as needed. * Maximum dosage: Use only as frequently as necessary to manage symptoms; no formal systemic maximum exists due to minimal absorption. ## Pediatric Dosing * **Infants and Children:** Safe for use in all pediatric age groups. * Apply a thin layer to the affected area. * Frequency: 3 to 4 times daily as needed. ## Dose Adjustments * No systemic dose adjustments are required as there is negligible systemic absorption via intact skin. ## Contraindications * Hypersensitivity to zinc oxide, ferric oxide, or any component of the formulation. * Avoid application to broken, blistered, or weeping skin unless directed by a clinician (risk of crusting and trapping infection). * Do not apply to mucous membranes or near the eyes. ## Adverse Effects * **Common:** Dryness, mild irritation, or maceration of the skin with excessive use. * **Rare:** Contact dermatitis or hypersensitivity reactions. ## Key Drug Interactions * No significant clinical drug-drug interactions exist due to minimal systemic absorption. * Avoid applying other topical medicated products simultaneously at the same site, as the physical barrier of calamine may interfere with the absorption of other topicals. ## Monitoring * Monitor for signs of infection (pus, increased redness, warmth, or fever) if applying to damaged skin. * Discontinue use if the condition worsens, symptoms last longer than 7 days, or irritation/rash develops. ## Clinical Pearls * **Shake well:** The product is a suspension and must be shaken thoroughly before each application to ensure uniform concentration of active ingredients. * **Removal:** Calamine lotion can be easily removed with water or mineral oil. * **Avoid ingestion:** Product is for external use only. If ingested, seek medical attention or contact Poison Control. * **Barrier efficacy:** It is physically inactive; it does not "cure" underlying conditions like contact dermatitis but provides temporary symptom relief. * **Staining:** Be aware that the iron content may stain clothing or linens. *** **Educational Disclaimer:** This information is for educational purposes and does not substitute professional medical advice. Always verify current prescribing information, package inserts, and local institutional protocols before administration.