Karbamid Evolan (Urea)

Karbamid Evolan acts on hyperkeratotic skin conditions by softening and promoting desquamation.

• Psoriasis: reduces scaling and plaque thickness, improving lesion appearance.
• Ichthyosis: enhances skin hydration and smoothness, decreasing roughness.
• Hyperkeratotic dermatitis: softens thickened skin, facilitating easier removal of scales.

• Urea functions as a keratinolytic and hygroscopic agent. It disrupts hydrogen bonds within keratin fibers, weakening the stratum corneum structure, while simultaneously increasing water binding capacity of the epidermis. This dual action softens hyperkeratotic plaques and restores moisture balance in the outer skin layer.

Topical urea is generally well tolerated, but local reactions can occur.

Common Side Effects

• Mild skin irritation: transient redness or itching at the application site.
• Dryness: temporary decrease in skin moisture after repeated use.
• Burning sensation: brief stinging feeling during or shortly after application.

Serious or Rare Side Effects

• Allergic contact dermatitis: rash, swelling, or vesicular eruption requiring medical attention.
• Severe skin ulceration: breakdown of epidermis with possible bleeding.
• Systemic toxicity: unlikely but reported with extensive large‑area use, presenting as nausea or altered mental status.

Proper use of Karbamid Evolan requires attention to skin condition and application area.

• Assess skin integrity: avoid on open wounds or severely compromised barrier.
• Limit surface area: restrict to small patches to reduce systemic absorption risk.
• Avoid eyes and mucous membranes: may cause irritation if contact occurs.
• Do not combine with other strong keratolytics without supervision: increased irritation potential.
• Pregnancy and lactation: consult a healthcare professional before use.
• Store at ambient temperature: keep in original container, protect from moisture and direct sunlight.

Urea can interact with other topical agents, affecting skin tolerance.

Major Interactions (Avoid)

• Concurrent use with potent topical corticosteroids: may increase risk of skin atrophy.
• Combination with other keratolytic agents (e.g., salicylic acid) on the same area: risk of excessive irritation.

Moderate Interactions (Monitor Closely)

• Use with occlusive dressings: may enhance absorption, monitor for irritation.
• Co‑application with topical antibiotics: observe for allergic reactions.
• Concomitant systemic diuretics: theoretical increase in systemic urea levels, monitor renal function if extensive skin area is treated.