Exam I Flashcards

1
Q

Acne Treatments based on Mechanism Of Action (MOA)- 4 Components:

A
  1. Follicular hyperproliferation and abnormal desquamation
  2. Increased sebum production
  3. C. acnesproliferation
  4. Inflammation
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2
Q

MOA Follicular hyperproliferation and abnormal desquamation: Medications

A
  • Topical retinoids
  • Oral retinoids
  • Azelaic acid
  • Salicylic acid
  • Hormonal therapies
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3
Q

MOA Increased sebum production: Medications

A
  • Oralisotretinoin

* Hormonal therapies

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4
Q

MOA C. acnesproliferation: Medications

A
  • Benzoyl peroxide
  • Topical and oral antibiotics
  • Azelaic acid
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5
Q

MOA Inflammation: Medications

A
  • Oralisotretinoin
  • Oral tetracyclines
  • Topical retinoids
  • Azelaic acid
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6
Q

What is Retinoic Acid

A

Morphogen derived from Vitamin A, it is insoluble in water but soluble in many organic solvents

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7
Q

Retinoic Acid’s effect on epithelial tissues

A

Its action in acne has been attributed to decreased cohesion between epidermal cells and increased epidermal cell turnover

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8
Q

How it is retinoic acid applied topically

A

Topical retinoic acid is applied initially in a concentration sufficient to induce slight erythema with mild peeling

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9
Q

The effects oftretinoinon keratinization and desquamation

A

It offers benefits for patients with photo-damaged skin. Prolonged use oftretinoinpromotes dermalcollagensynthesis, new blood vessel formation, and thickening of the epidermis, which helps diminish fine lines and wrinkles. Specially formulated moisturizing 0.05% cream (Renova, Refissa) is marketed for this purpose.

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10
Q

The most common adverse effects of topical retinoic acid

A

Erythema and dryness that occur in the first few weeks of use, but these can be expected to resolve with continued therapy

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11
Q

Acne-Systemic Agents-Oral isotretinoin: Isotretinoin Medications

A

Claravis, Amnesteen, Myorisan, Zenatane, Absorica, Sotret

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12
Q

Isotretinoin recommendations

A

Children: Not recommended.
Contraindications: Pregnancy (Cat.X)
Nursing mothers
Boxed Warning: High risk of severe birth defects will result if pregnancy occurs while taking Amnesteem

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13
Q

How many elements does REM need to mitigate risks associated with use of drug

A

1 or more elements

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14
Q

REMS goals:

A
  1. To inform patients about the serious risks associated with drug X;
  2. To minimize potential drug-drug and disease-drug interactions; and
  3. To prevent the risk of fetal exposures to drug X
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15
Q

What is Isotretinoin treatment for acne

A

vulgaris that is thought to improve acne through reducing sebum production, inhibiting the growth of Cutibacterium (formerly Propionibacterium) acnes, and inhibiting comedogenesis

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16
Q

Isotretinoin side effects

A

teratogenicity, mucocutaneous disorders, myalgias, visual changes, idiopathic intracranial hypertension, hepatotoxicity, and hyperlipidemia

17
Q

Patients with severe inflammatory acne (eg, acne conglobata, acne fulminans)

A

May require a lower initial dose and/or concomitant treatment with systemic glucocorticoids starting before or at the initiation of oralisotretinointherapy

18
Q

Other Systemic Agents for Acne MOA: Oral Antibiotics- Tetracycline dosage

A

500 mg twice daily

19
Q

Other Systemic Agents for Acne MOA: Oral Antibiotics- Tetracycline: Side effects and Contraindications

A

Photosensitivity, gastrointestinal distress; contraindicated in pregnancy and young children

20
Q

Other Systemic Agents for Acne MOA: Oral Antibiotics- Doxycycline dosage

A

50 to 100 mg twice daily or 100 mg once daily
or
Delayed release formulation: 100 mg every 12 hours for one day, then 100 mg per day

Subantimicrobial dosing: 20 mg twice dailyor
Delayed release formulation given as 40 mg once daily

21
Q

Other Systemic Agents for Acne MOA: Oral Antibiotics- Doxycycline: Side effects and Contraindications

A

Photosensitivity, gastrointestinal distress; contraindicated in pregnancy and young children

22
Q

Other Systemic Agents for Acne MOA: Oral Antibiotics- Minocycline dosage

A

50 mgone to three timesdailyor

Extended release formulation: 1 mg/kg/day (round to nearest available strength)

23
Q

Other Systemic Agents for Acne MOA: Oral Antibiotics- Minocycline: Side effects and Contraindications

A

Dizziness, drug-induced lupus, skin discoloration; contraindicated in pregnancy and young children

24
Q

Other Systemic Agents for Acne MOA: Oral Antibiotics- Sarecycline
dosage

A

Weight-based dosing:
33 to 54 kg: 60 mg once daily
55 to 84 kg: 100 mg once daily
85 to 136 kg: 150 mg once daily

25
Q

Other Systemic Agents for Acne MOA: Oral Antibiotics- Sarecycline Side effects and Contraindications

A

Photosensitivity, gastrointestinal distress; contraindicated in pregnancy and young children

26
Q

Other Systemic Agents for Acne MOA: Oral Antibiotics- Erythromycin dosage

A

500 mg twice daily (base)

27
Q

Other Systemic Agents for Acne MOA: Oral Antibiotics- Erythromycin: Side effects

A

Gastrointestinal distress

28
Q

Other Systemic Agents for Acne MOA: Oral Antibiotics- Trimethoprim-sulfamethoxazole dosage

A

160 mg/800 mg once to twice daily

29
Q

Other Systemic Agents for Acne MOA: Oral Antibiotics- Trimethoprim-sulfamethoxazole: Side effects

A

Stevens-Johnson syndrome, toxic epidermal necrolysis

30
Q

Other Systemic Agents for Acne MOA: Oral Antibiotics- Azithromycin
dosage

A

Intermittent dosing due to long drug half-life; optimum regimen unknown

31
Q

Other Systemic Agents for Acne MOA: Oral Antibiotics- Azithromycin: Side effects

A

Gastrointestinal distress

32
Q

Slide 16

A

16