EXAM #5: REVIEW Flashcards
List the vehicles that should be used on the scalp and hairy areas.
Lotion Solution Gel Aerosol Foam
List the vehicles that should be used on interriginous areas.
Lotion
Solution
Cream
List the vehicles that are good for drying.
Powder
Paste
Tincture
Aerosol
What bacteria can be treated with Azelaic acid?
P. acnes and S. epidermidis
Describe the MOA of Azelaic acid.
1) Reduces inflammation
2) Reduces keratinization
3) Keratolytic and induces desquamation
What side effects are associated with Azeliac acid?
1) Lightening of the skin
2) Skin dryness
What is the MOA of benzoyl peroxide?
Release ROS that are harmful to anaerobic bacterial species
What type of bacteria is benzoyl peroxide effective against?
Anaerobic
How is benzoyl peroxide commonly administered?
In combination with Erythromycin or Clindamycin
List the indications for the retinoid drugs.
1) Acne
2) Psoriasis
3) Skin aging
4) Skin cancer
List two side effects associated with the retinoid drugs.
1) TERATOGEN
2) Photosensitivity and increased risk of sunburn
What is the MOA of Tretinoin?
1) Reduces cohesiveness of comodomes
2) Codomolytic
3) Reduces keratinization
What is the MOA of Adapalene?
1) Reduced cellular proliferation
2) Reduced inflammation
3) Comedolysis
What is the MOA of Isotretinoin?
Induces apoptosis of sebum producing cells in sebaceous glands
What is the MOA of Tazarotene?
1) Decreases inflammation
2) Reduces epidermal inflammation
What are the clinical indications for Tazarotene?
Acne and Psoriasis
What is the clinical indication for Acritretin?
Severe, reluctant psoriasis
What is the clinical indication for Calcipotriene?
Psoriasis
What is the MOA of Calcipotriene?
- Binds Vitamin D receptor
- Gene transcription changes are beneficial in PSORIASIS
List five adverse effects of topical corticosteroids.
1) Epidermal atrophy
2) Acne
3) Enhanced fungal infection
4) Delayed wound healing
5) Hypopigmentation
List the Psoralen drugs. What is the MOA of these drugs?
Methoxsalen
Trioxsalen
Administered topically or orally; activated by light; intercalate with DNA
List four indications for the Psoralen drugs.
1) Alopecia
2) Cutaneous T-cell Lymphoma
3) Eczema
4) Psoriasis
List the long-term adverse effects of the Psoralens.
1) Photoaging
2) Actinic keratoses
3) Nonmelanoma skin cancer
List the three primary locations of H2 receptors.
1) GI parietal cells
2) Cardiac muscle
3) CNS neurons
What are the three general functions of histamine in the CNS?
1) Release of pituitary hormones
2) Wakefullness
3) Appetite/Satiety
List five clinical indications for a first generation antihistamine.
1) Allergic rhinitis
2) Allergic conjunctivitis
3) Urticaria
4) Motion sickness
5) Anti-emetic
What is the MOA of the H1 antihistamines?
“INVERSE AGONIST”
List five major side effects of the first generation antihistamines and the receptor association with that effect.
- CNS depression (H1)
- Dry mouth and urinary retention (M – anticholinergic)
- Increased appetite and weight gain (5-HT)
- Dizziness and postural hypotension (Alpha-1)
List the four H1 antihistamines with the strongest anti-emetic effects.
Diphenhydramine
Promethazine
Hydroxyzine
Meclazine
List the three H1 antihistamines with the strongest sedative effects.
Diphenhydramine
Promethazine
Hydroxyzine
What H1 antihistamines have the strongest anticholinergic effects?
Diphenhydramine
Promethazine
What H1 antihistamines is the strongest alpha-1 antagonist?
Promethazine
List second generation antihistamines.
Foxofenadine Loratadine Desoloratadine Citrizine Levocitrazine Azelastine
What are the clinical pearls the remember with Foxfenadine administration?
1) Decrease dose with renal dysfunction
2) Don’t combine with antacids
What is the MOA of Cromolyn and Nedocromil?
Stabilization of mast cells to prevent degranulation
What are the three clinical indications for Cromolyn and Nedocromil?
1) Allergic rhinitis
2) Allergic conjunctivitis
3) Exercise induced asthma
List two indications for Omalizumab.
1) Chronic urticaria
2) Asthma
What is Doxepin?
TCA used to treat chronic urticaria
What is Ketotifen?
H1 antihistamine with additional mast cell stabilizing characteristics
Used in an ophthalmic preparation for allergic conjunctivitis
What two receptors can cortisol bind to and activate?
Mineralcorticoid
Glucocorticoid
List the major adverse effects seen with elevated cortisol.
1) Salt/water retention
2) Hypokalemia
3) HTN
What is Primary Adrenal Insufficiency? What are the symptoms?
Autoimmune or tuberculoid destruction of the adrenal cortex leading to:
- Hypotension
- Hyponatremia
- Hypokalemia
- Hypoglycemia
How do you treat Primary Adrenal Insufficiency?
1) Cortisol
2) Increase Na+ intake
3) Fludrocortisone
Aside from iatrogenic Cushing’s Disease, what are the alternate etiologies of Cushing’s?
1) Pituitary tumor with increased ACTH
2) Ectopic ACTH tumor
3) Adrenal tumor
What are the three drug therapies for Cushing’s Syndrome?
Ketoconazole
Metyrapone
Mifepristone
What is the MOA of Ketoconazole to treat Cushing’s?
Antifungal that inhibits 17-a hydroxylase
What toxicity is associated with Ketoconazole?
Liver toxicity
What is the MOA of Metyrapone to treat Cushing’s?
Inhibits 11-B hydroxylase
Note that this is also used in the diagnosis of ACTH production
What is the MOA of Mifepristone?
Glucocorticoid receptor antagonist
What are the specific indications for Mifepristone?
1) Inoperable ectopic ACTH production
2) Adrenal carcinoma
What is the MOA of inhaled glucocorticoids in the treatment of asthma?
- Reduced proliferation and hypertrophy of airway smooth muscle
- Prevents leakage of vascular endothelium
- Reduces adhesion of molecules to vascular epithelium
- Increased epithelial integrity
What is a significant adverse effect of inhaled glucocorticoids, especially in kids?
Growth retardation
What are the local adverse effects of inhaled glucocorticoids to treat asthma?
1) Dysphonia
2) Oropharyngeal candidiasis
3) Cough
List four functions of the thyroid hormones.
1) Growth
2) Development
3) Body temperature
4) Energy metabolism
What enzyme converts T4 into T3?
5’-deiodinase
What is the effect of low thyroid hormone levels on the SNS?
1) Increased Beta-adrenergic receptors
2) Decreased Alpha-adrenergic receptors
List the causes of primary hypothyroidism.
1) Congenital i.e. Cretinism
2) Autoimmune Thyroiditis
3) Iodide deficiency
4) Other i.e. surgery, radiation, and meds like Lithium
List the drugs used to treat hypothyroidism.
Levothyroxine (T4)
Liothyronine (T3)
Liotrix (Both)
List the adverse effects of thyroid replacement in children,
Restlessness
Insomnia
Accelerated bone maturation
List the adverse effects of thyroid replacement in adults.
Nervousness Heat intolerance Palpitations Tachycardia Weight loss
List the adverse effects of thyroid replacement in the elderly.
A-fib
Osteoporosis
List five causes of primary hyperthyroidism.
1) Grave’s Disease
2) Thyroid adenoma/ carcinoma
3) Autoimmune thyroiditis
4) Thyroid storm
5) Excess iodide