Dermatologic, Ophthalmic, and Otic Flashcards
antiglaucoma drug categories
Cholinergic Drugs (Mitotics) Sympathomimetics (Mydriatics) Beta-Adrenergic Blockers Carbonic Anhydrase Inhibitors Prostaglandin Agonists
Cholinergic Drugs (Mitotics) Key drugs:
- Pilocarpine
- Echothiophate
Sympathomimetics (Mydriatics)
Key drug:
Dipivefrin
Beta-Adrenergic Blockers
Key drugs:
- Betaxolol
- Timolol
Carbonic Anhydrase Inhibitors
Key drug:
Dorzolamide
Prostaglandin Agonists
Key drug:
Latanoprost
Cholinergic Drugs:
MOA
Similar to acetylcholine effects in the body
Cholinergic Drugs: Indications
Open-angle glaucoma, angle-closure glaucoma, convergent strabismus
Cholinergic Drugs: Contraindications:
Drug allergy
Cholinergic Drugs: Adverse Effects
Local and limited to the eye
Cholinergic Drugs: Interactions
Unlikely due to local action of these drugs
Cholinergic Drugs:
Nursing Considerations
-
Pilocarpine
Direct-acting miotic
Treatment of glaucoma
Echothiophate
Indirect-acting miotic
Management of glaucoma
Long acting
Sympathomimetics:
MOA
Mimic norepinephrine and epinephrine
Sympathomimetics:
Indications
Reduce intraocular pressure in chronic open-angle glaucoma
Sympathomimetics:
Contraindications
Drug allergy
Sympathomimetics:
Adverse Effects
Burning, eye pain, and lacrimation
Sympathomimetics:
Interactions
Anesthetics, cardiac glycosides, thyroid hormones, or TCA’s potentially cause dysrhythmias
Sympathomimetics:
Nursing Considerations
-
Beta-Adrenergic Blockers:
MOA
Reduce both elevated and normal intraocular pressure
Beta-Adrenergic Blockers: Indications
Chronic open-angle glaucoma and ocular hypertension
Beta-Adrenergic Blockers:
Contraindications
Drug allergy
Beta-Adrenergic Blockers: Adverse Effects
Most common are transient burning and discomfort
Beta-Adrenergic Blockers:
Interactions
Unlikely d/t to localized nature of the drugs
Beta-Adrenergic Blockers:
Nursing Considerations
-
Betaxolol
Very potent and selective beta blocking drug
Treatment of open-angle glaucoma and ocular hypertension
Timolol
Acts at both beta1 and beta2 receptors
Indicated for open-angle glaucoma and ocular hypertension
Carbonic Anhydrase Inhibitors:
MOA
Inhibits carbonic anhydrase to decrease intraocular pressure
Carbonic Anhydrase Inhibitors:
Indications
Management of glaucoma
Carbonic Anhydrase Inhibitors:
Contraindications
Drug allergy, caution use with sulfonamide antibiotics
Carbonic Anhydrase Inhibitors:
Adverse Effects
Similar to those of sulfonamide antibiotics
Carbonic Anhydrase Inhibitors:
Interactions
Unlikely with local administration
Carbonic Anhydrase Inhibitors:
Nursing Considerations
-
Dorzolamide
Treatment of elevated intraocular pressure associated with ocular hypertension or open-angle glaucoma
Only available as an ophthalmic solution
Prostaglandin Agonists:
MOA
Reduce intraocular pressure
Prostaglandin Agonists:
Indications
Treatment of glaucoma
Prostaglandin Agonists:
Contraindications
Drug allergy
Prostaglandin Agonists:
Adverse Effects
Foreign body sensation, dotted appearance of cornea, stinging, bloodshot eyes, blurred vision, itching, and burning
Prostaglandin Agonists:
Interactions
Concurrent administration with other eye drops may cause precipitation
Prostaglandin Agonists: Nursing Considerations
-
Latanoprost
Only available in eyedrop form
About 3-10% of patients have increased iris pigmentation after 3-4.5 months of treatment
Eyes may turn dark brown
Antimicrobial Drugs: Categories
Aminoglycosides Macrolide antibiotics Polypeptide antibiotics Quinolone antibiotics Sulfonamides
Aminoglycosides
Gentamicin
Macrolide antibiotics
Erythromycin
Polypeptide antibiotics
Bacitracin
Quinolone antibiotics
Ciprofloxacin
Sulfonamides
Sulfacetamide
Antimicrobial Drugs:
MOA
Work to destroy invading organism
Antimicrobial Drugs:
Indications
Known or suspected infection
Antimicrobial Drugs:
Contraindications
Drug allergy or severe previous drug reaction
Antimicrobial Drugs:
Adverse Effects
Local & transient burning, inflammation, stinging, urticaria, dermatitis
Antimicrobial Drugs:
Interactions
Possible interaction with corticosteroids
Antimicrobial Drugs:
Nursing Considerations
-
Gentamicin
Wide variety of gram positive and gram negative infections
Erythromycin
Various ophthalmic infections
Bacitracin
Various eye infections
Ciprofloxacin
Bacterial keratitis and conjunctivitis
Sulfacetamide
Most commonly used ophthalmic antimicrobial drug
Diagnostic Drugs: Atropine Sulfate
MOA:
Dilates the pupil and paralyzes the ciliary muscle
Indications:
Assist in eye examination or treat inflammatory states
Lubricants & Moisturizers: Artificial Tears
MOA:
Isotonic and contain buffers to adjust eye pH
Indications:
Provide lubrication or moisture for the eye