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# Calamine Lotion ## Overview Calamine lotion is a topical skin protectant containing zinc oxide and ferric oxide (which provides the characteristic pink color). It acts as an antipruritic and mild astringent. ## Primary Indications * Relief of itching, pain, and discomfort associated with minor skin irritations (e.g., poison ivy, poison oak, poison sumac, insect bites, and sunburn). ## Adult Dosing * **Topical:** Shake well before use. Apply a thin layer to the affected area 3 to 4 times daily as needed. ## Pediatric Dosing * **Pediatric (including infants/children):** Apply a thin layer to the affected area 3 to 4 times daily as needed. Safety and efficacy in neonates are not formally established; consult a pediatrician if irritation is severe or covers a large surface area. ## Dose Adjustments * No systemic dose adjustments required as absorption is minimal. * Avoid use on large body surface areas, particularly in patients with impaired renal function, although systemic toxicity from topical application is clinically rare. ## Contraindications * Hypersensitivity to zinc oxide, ferric oxide, or any component of the formulation. * Do not apply to deep or puncture wounds, animal bites, or serious burns. * Avoid application to broken or blistered skin unless directed by a provider. ## Adverse Effects * **Common:** Mild stinging, skin dryness, or irritation. * **Rare:** Allergic contact dermatitis. ## Key Drug Interactions * No significant systemic drug interactions identified due to lack of systemic absorption. * May physically interfere with the absorption/application of other topical medications if applied concurrently. Apply other topicals first, allow to dry, then apply calamine. ## Monitoring * Monitor for signs of worsening irritation, infection (e.g., pus, spreading redness, fever), or lack of response after 7 days of use. * Ensure the product does not come into contact with eyes, mouth, or mucous membranes. ## Clinical Pearls * **Shake well:** Calamine lotion is a suspension and will settle upon storage. * **Drying agent:** May cause significant skin drying; discontinue if excessive desquamation or irritation occurs. * **Staining:** The iron oxide in the lotion can stain clothing and fabrics. * **Not a curative:** Use is strictly symptomatic for pruritus; it does not treat the underlying cause of rashes (e.g., contact dermatitis). * **Flammability:** Some formulations may contain alcohol; ensure the product is dry before exposing the skin to high heat or open flames. *** **Disclaimer:** This information is provided for educational purposes only. Always verify drug labeling, specific concentrations, and clinical protocols with current pharmacy references or institutional guidelines before administration. Always check for ingredient variations in commercial products.