DERMATOLOGY PharmDr. Marek Lžičař FAFP1 Pharmaceutical care I Lecture, 5. 11. 2018 Information about skin  The biggest part of human body  Body surface 1,6 – 2 m2  Weight 3 kg, with fatty tissue more then 20 kg  Skin contents cca 70 % of water  Epidermis (cuticle) – stratum corneum  Dermis – elastic, collagen fibers, mast cells, vascular and nerve fibers Skin functions Protective Barrier • acid pH, Langerhans cells as a part of immune system Thermoregulatory • vasoconstriction and vasodilatation, sweat formation – cooling Sensory • receptors for press, touch, nociceptors, thermoreceptors Resorption and excretion • Sebaceous glands Vitamin D production • After sunlight Dermatological drugs  Medicines for the treatment of skin disease  Local treatment  Systemic treatment  The effect of the therapy depends on the pharmaceutical form, lipophilic properties, molecular size and concetration of active substance  The medicine absorption is affected by age, sex, skin hydratation, application site Dermatology medicines Emollients and protectives Antiseptics and disinfectants Antifungals Antivirotics Antipsoriatics Anti-acne preparations Antiphlogistics Antiectoparasitics Emollients Soften, smoothen, skin hydratation  Urea  Lactic acid  Ointment base Bath oils (Balneum hermal, Balmandol oil, Linola-Fett- Olbad) Emulsions, creams (Excipial U, Linola, Lipobase) How to use it? Antimycotics  Infections caused by pathogenic funghi and yeast  The most frequent pathogens  Candida  Pityrosporum  Microsporum  Trichophyton  Affected areas: nails, (onychomycosis), hair, feet, vaginal mucosis  Frequent complication of diabetes mellitus Antivirotics Herpes simplex skin infections HPV infections Warts Antipsoriatics  Psoriasis vulgaris quite common disease (2 – 3 % populace - Autoimmune disease  It causes cells to build up rapidly on the surface of the skin.  The extra skin cells form scales and red patches that are itchy and sometimes  Type I  Type II Acne  Skin condition that occurs when hair follicles become plugged with oil and dead skin cells  Usually appears on face, neck, chest, back and shoulders  Most common among teenagers Eczema - Atopic dermatitis  Inflammatory skin disease  long lasting (chronic) and tends to flare periodically.  It may be accompanied by asthma or hay fever Scabies  an itchy skin condition caused by a tiny burrowing mite called Sarcoptes scabiei  The presence of the mite leads to intense itching in the area of its burrows  The urge to scratch may be especially strong at night. Head lice  Tiny insects that feed on blood from the human scalp  most often affects children  direct transfer of lice from the hair of one person to the hair of another Conclusions Treatment of skin diseases must be complex Individual therapy is needed Causal therapy is often unknown