Ocular Pharm: L8: Drugs for Managing Ocular Allergy Flashcards
Non-Pharmaceutical Management
- Goal is to do what?
- What are good things to do?
(START WITH NON DRUG TXs!) - What sets Allergies apart from dry eyes?
- soothe eye and/or get rid of antigens
- ATs, Cold compresses, Wash Hair before going to bed; Wash Pets (2x’s/wk for dogs)
* If associated w/CL Wear: Switch to DAILY DISPOSABLE LENSES or use HYDROGEN PEROXIDE CLEANER! - Usually ITCHING
Pharmaceutical Tx?
- Mast Cell Stabilizers
- Antihistamines
- Combined Antihistamine/Mast Cell Stabilizers
- Steroids (NSAIDs)
- Immune System Suppressants
Topical Mast Cell Stabilizers
- What is needed to get them?
a. How long does it take for them to work? - 4 of them
- What will they do with Mast Cells?
- Rx
a. 7-14 days to work (Best if given before allergic response starts) - a. Lodaxamide Tomethamine
* 1 gtt QID >2yo
b. Nedocromyl Sodium
* 1 gtt BID, >3yo
c. Perimolast Potassium
* 1gtt QID >3yo
d. Cromolyn Sodium
* 1 gtt QID >4yo
- Turn off symptoms and Mast Cells are saved!
Topical Antihistamines
- Emedastine Difumerate: drops?
- 1 gtt QID, >3yo, Rx NEEDED
Oral Antihistamines: First Gen
- Rx needed?
- Diphenhydramine
- Chlorpheniramine
- Also can cause what?
- OTC or BTC
- 25-50 mg q4-6h, No children’s formulation
- 4 mg, q4-6h >6yo
- Drowsiness
Oral Antihistamine: Second Gen
- Less effect of what?
- Certirizine Hydrochloride
- Loratadine
- Fenfoxadine Hydrochloride
- Less Anticholinergic Effects (Less Drowsiness)
- 10 mg QD (2yo)
- Non-Drowsy, 10 mg QD (2 yo)
- Non-Drowsy, Up to 180 mg daily (6 yo)
Oral Antihistamine: Newest in Class
- Desloratadine
- Levocetirizine
- Active form of Loratadine (Claritin)
Faster Action. (1 yo for liquid form) - Active Form of CERTIRIZIN (Zyrtec
More Effective, Fewer Side effects
Non-Drowsy
(6 months for liquid form)
Topical AH’s (MCS’s)
- Ketotifen Fumerate
- Olopatadine Hydrochloride
- OTC (0.025%)
- Patanol: 0.1%, 1gtt, BID >3yo
Pataday: 0.2%, 1gtt, BD, >3yo
Topical AH’s/MCS’s-2
- Azelastine Hydrochloride
- Bepotastine Besolate
- Epinastine Hydrochloride
- Alcaftadine
- 1 gtt BID >3yo
- 1 gtt BID >2yo
- 1 gtt BID >3yo
- 1gtt QD >2yo; Reduces Itching in 3 minutes, Lasts for 16 hrs
Topical Corticosteroids
- Rx needed?
- Ocular: (already discussed..)
- Non-ocular
a. Hydrocortisone
b. Triamcinolone
- Yes. Usually
- Fluorometholone, Loteprednol
- a. 1% ung or cream; OTC; BID to TID 5-10 Days, use with CAUTION on children
b. by Rx; BID to TID 5-10 Days, use with caution on children
(0. 025 to 0.5% ung or cream)
Nasal Spray Corticosteroids
- Nasal Steroids can also reduce what?
- Rx Needed?
- How do you administer it?
- 5 of them
- Ocular Allergy Symptoms
- Yes
- 2 Sprays Each nostril, QD
- a. Triamcinolone
b. Fluticonasone
c. Fluticonasone Propionate
d. Budesonide
e. Beclomethasone
Topical NSAIDs
- DO NOT Block what receptors?
- Do not completely inhibit what?
- GOOD for Tx of what 2 ocular symptoms?
- Not as effective as other drugs for what symptoms?
- Histamine receptors
- Immune System
- of Itching and Redness
- for Burning, Conjunctival Chemosis, Eyelid Swelling, Photophobia, and FBS
If you really just want to get the RED out, prescribe what?
- Long-term Tx?
- Three of them?
- Decongestant Vasoconstrictor
- NO. If you do, then stop using them, you will get issues…
- Naphazoline HCL
b. Phenylephrine HCL
c. Tetrahydrozoline HCL, Oxymetazoline HCL
Major Types of Ocular Allergy
- Acute Allergic (rhino) conjunctivitis
a. Seasonal and Perennial Allergic - Vernal Keratoconj. (VKC)
a. W/LIMBAL and CORNEAL INVOLVEMENT - Atopic Keratoconjunctivitis
- Giant Papillary Conjunctivitis
Acute Allergic conjunctivitis
- Can be what?
- Symptoms?
- Signs
- Seasonal or Year-round, depends on when allergens are present
- Itching, burning, tearing, HYPEREMIA
- CONJUNCTIVAL HYPEREMIA and Chemosis, Eyelid Edema
Acute Allergic conjunctivitis Tx
- Mild (2 things)
- Moderate to Severe
a. first step
b. Prophylaxis control
c. Combo?
d. For RhinoConjunctivitis
e. Severe Cases?
- Cold Compresses and ATs (chilled)
- a. Topical or oral Antihistamines
b. Topical Mast Cell Stabilizers (prophylaxis or Control RATHER than RAPID RESPONSE)
c. Topical Antihistamine/Mast Cell Stabilizer Combination
d. Topical NSAID or Steroid Nasal Spray (RHINOCONJUNCTIVITIS)
e. Topical Corticosteroids (SEVERE CASES)
Vernal Keratoconjunctivitis (VKC)
- Usually affects whom?
- Peak incidence?
- % of patients have associated ATOPY?
- Symptoms?
- 3 forms?
- Can develop what?
- Young Boys
- Spring
- 90%
- Intense Bilateral Itching, Stringy mucous DISCHARGE, FBS, VA may be affected
- Limbal, Palpebral, Mixed
- Keratopathy can develop d/t inflammatory mediators or trauma from palpebral papillae
Treatment of VKC
- Supportive Therapy (Mild Disease)
- What is used in 85% of PATIENTS?
- Chronic Cases?
- What is used for EXCESS MUCOUS?
- What is used in Severe Cases?
- Cold Compresses, ATs, Maintain cool and Moist environment
- Topical Corticosteroids
- Topical Mast Cell Stabilizers w/or w/o Antihistamine (for chronic cases)
- Acetylcysteine 10% (mycolytic)
- Cyclosporine, Mitomycin-C 0.01%, Periocular Corticosteroids for severe cases, or even systemic
Atopic Keratoconjunctivitis
- Symptoms
- Signs
- in men more than women. Bilateral, symmetric
1. Itching and tearing, reduced VA late in disease possible
2. Ropy mucous discharge, Tarsal Papillae, Trantas Dots, Fornix foreshortening, symblepharon
Atopic Keratoconjunctivitis Tx:
- Mild Disease?
- ACUTE OCULAR Symptoms?
- Chronic Symptoms
- Eyelid Eczema
- Blepharitis/Meibomianitis
- Excessive Mucous Production
- Refractory Disease
- Supportive: Cool compresses, ATs, maintain cool and moist environment, Warm compresses for Blepharitis
- Topical Antihistamine, Antihistamine/Mast Cell Stabilizer, NSAID, or Corticosteroid
- Topical Mast Cell STabilizer w/or w/o antihistamine
- Topical Corticosteroid (non-ocular)
- Topical Antibiotic, Topical Corticosteroid/Antibioitc, Oral Antibiotic
- Acetylcysteine
- Topical or Oral Cyclosporine
GPC
- In whom?
- Symptoms?
- Signs
- CL patient, ocular prostheses
- itching, burning, chafing, mucous discharge (eyelids stick together), BILATERAL
- Conj Hyperemia, mucus discharge, Giant papillae on Upper tarsal conj, CL coated with grayish-white film
GPC Tx
- Mild:
- Long term Maintenance?
- If CL Related?
- Mild Topical Corticosteroid: QID 2wks then BID for 2 more weeks.
- Topical mast cell stabilizer
- D/C CL wear for about 4 wks
and re-fit w/DAILY Lens or switch to Hydrogen peroxide cleaning system