Dermatology Flashcards
Two Calcineurin Inhibitors
Pimecrolimus and Tacrolimus
Mechanism of action of Pimecrolimus
release of inflammatory cytokines and inflammatory mediators from mast cells. Mild to moderate atopic dermatitis
Mechanism of action of tacrolimus
- Inhibits t-cells, mast cells, langerhan cells, kerocytes (tacrolimus)
- Moderate to severe atopic dermatitis
True or false. Calcineurin inhibitors can be used in all areas of the body
True. Best for maintenance. Comparable to mid potency corticosteroids.
Tacrolimus peds dosing (ages 2-15)
0.03%
Tacrolimus adult dosing
0.1% (never use 0.03%)
Pimecrolimus dosing
1%
3 point treatment regimen for atopic dermatitis
1st: hydration. Daily showers
2nd: Steroid (cortisone) within 3 minutes
3rd: emollient: Rub cream/lotion over cortisone to seal it in
Mechanism of action for topical corticosteroids
- Suppress release of cytokines
- Inhibit migration of macrophages and leukocytes by reducing vascular dilation and permeability thus decreasing edema, erythema, itching
Children younger than 12 should not be treated with this group of topical corticosteroids
Group 1 and 2
Potency of topical steroids is determined by this:
By vasoconstrictor assays (not strength of steroid)
List type of vehicles from best to worst
ointments, creams, solutions and lotions
Absorption is enhanced by:
Skin temperature, hydration, thin stratum corneum, occlusive dressing, infant/children, denuded, hydration
Clobetasol cream/ointment/solution
High potency topical corticosteroid. Used for psoriasis and stubborn dermatitis
Desoximetasone
High potency topical corticosteroid for hyperkeratotic dermatitis