- •CONTENTS
- •FOREWORD
- •PREFACE
- •CONTRIBUTORS
- •ABOUT THIS BOOK
- •ABBREVIATIONS
- •GENERAL CONSIDERATIONS
- •MEDICOLEGAL ISSUES
- •EVALUATION
- •EMERGENCY MANAGEMENT
- •MECHANICAL GLOBE INJURIES
- •CONJUNCTIVA
- •CORNEA
- •EXTRABULBAR TISSUE PROLAPSE
- •ANTERIOR CHAMBER
- •IRIS
- •CILIARY BODY
- •GLAUCOMA
- •LENS
- •CHOROID
- •VITREOUS AND RETINA
- •INTRAOCULAR FOREIGN BODIES
- •ENDOPHTHALMITIS
- •SYMPATHETIC OPHTHALMIA
- •EVISCERATION AND ENUCLEATION
- •NONMECHANICAL GLOBE INJURIES
- •PHOTIC AND ELECTRICAL TRAUMA
- •NONGLOBE INJURIES
- •EYELID AND LACRIMAL TRAUMA
- •ORBITAL TRAUMA
- •OCULAR MOTOR SYSTEM
- •APPENDICES
- •INSTRUMENTATION
- •ENDOSCOPY
- •PHARMACOLOGY
- •MYTHS AND TRUTHS ABOUT EYE INJURIES: ANSWERS TO COMMONLY ASKED QUESTIONS
- •INDEX
Appendix 5
PHARMACOLOGY
Martin L. Heredia-Elizondo,
Tamer A. Macky, D. Virgil Alfaro, and Joel H. Herring
Drug |
Preparation |
Dose |
|
|
|
|
|
ANESTHETICS |
|
|
|
Lidocaine |
0.5%, 1%, 1.5%, 2%, 4%, 10%, and 20% for |
Extensive procedures: 10–20 mL of a 1% |
|
|
injection |
solution* |
|
|
|
|
Minor surgery: 2–10 mL of a 0.5% solution. |
|
0.5%, 1%, 1.5%, and 2% with epinephrine |
Extensive time: up to 20 mL of a 1% solution |
|
|
1:200,000 for injection |
with epinephrine |
|
|
|
|
Maximum dose: |
|
|
|
with epinephrine (7 mg kg or 500 mg) |
|
|
|
without epinephrine (4.5 mg kg or 300 mg) |
Procaine |
1%, 2%, and 10% for injection |
Extensive procedures: 6 10 mL of the 2% |
|
|
|
|
solution |
|
|
|
Minor surgery: 6 20 mL of the 1% solution |
ANTIBIOTICS |
|
|
|
Aminoglycosides |
|
|
|
Amikacin |
50 and 250 mg mL solution. (im and iv) |
7.5 to 8.0 mg kg every 12 h (iv) |
|
|
|
|
0.2 to 0.4 mg in 0.1 mL for intravitreal injection |
Gentamicin |
2 mg mL solution (im, iv, and intrathecal) |
1.5 to 2.0 mg kg every 8 h |
|
|
10 and 40 mg mL solution (im and iv) |
0.1 mg in 0.1 mL for intravitreal injection |
|
Neomycin |
Neomycin sulfate 500 mg tablet |
1 g every 4 h |
|
|
Neomycin-bacitracin-polymyxin ointment |
One to four times daily |
|
|
Neomycin-dexamethasone 0.1% solution |
Once or twice every h (topical) |
|
Tobramycin |
0.3% solution and ointment (topical) |
Every 3–4 h (ointment) |
|
|
10 and 40 mg mL solution (im and iv) |
1–2 drops every 4 h , or 2 drops once or twice |
|
|
|
|
every h for severe infections (topical) |
Cephalosporins |
|
|
|
Cefazolin |
500 mg, 1 g, 10 g, and 20 g solution |
133 mg mL topical (one drop every 4–6 h) |
|
|
|
|
100 mg mL subconjunctival |
|
|
|
2.25 mg intravitreal |
|
|
|
500 to 1000 mg every 6 h iv im |
Ceftazidime |
500 mg, 1 g, and 2 g solution |
50 mg mL topical (one drop every 4–6 h) |
|
|
|
|
200 mg mL subconjunctival |
|
|
|
2.2 mg intravitreal |
|
|
|
1–2 g every 12 h iv im |
|
|
|
continued |
*1% solution: 10 mg mL. |
|
|
|
446
|
|
APPENDIX 5 PHARMACOLOGY • 447 |
Drug |
Preparation |
Dose |
|
|
|
Ceftriaxone |
250 mg, 500 mg, 1 g, 2 g, and 10 g solution |
3 mg intravitreal |
|
|
1–2 g every 24 h iv im |
Penicillins |
|
|
Ampicillin |
125 mg 5 mL and 250 mg 5 mL suspension |
250–500 mg every 6 h (oral) |
|
(oral) |
|
|
250 mg capsule (oral) |
50 mg mL topical (one drop every 4–6 h) |
|
125 mg, 250 mg, 500 mg, 1 g, and 2 g |
|
|
solution (iv and im) |
100 mg mL subconjunctival |
5000 g intravitreal 1–3 g every 6 h (iv im)
Methicillin |
1 g, 4 g, and 6 g powder |
Oxacillin |
250 mg and 500 mg capsule (oral) |
|
250 mg 5 mL solution (oral) |
|
500 mg, 1 g, and 2 g solution (iv) |
Penicillin G |
Benzathine: 600,000 U mL suspension (im) |
|
Potassium: 20,000 U mL suspension (iv, |
|
topical, subconjunctival) |
|
Procaine: 600,000 U mL susp (im) |
Penicillin V |
125 mg 5 mL and 250 mg 5 mL solution |
|
(oral) |
|
250 mg and 500 mg tablet |
Sulfonamides |
|
Sulfacetamide |
10% suspension and ointment (topical) |
|
10%, 15%, and 30% solution (topical) |
|
Same preparations and steroid: |
|
Prednisolone 0.2% and 0.5% |
|
Prednisone 0.25% |
|
Fluorometholone 0.1% |
Trimethoprim/ |
80 mg trimethoprim, 400 mg |
sulfamethoxazole |
sulfamethoxazole |
combination |
160 mg trimethoprim, 800 mg |
|
sulfamethoxazole |
|
40 mg trimethoprim, 200 mg |
|
sulfamethoxazole 5 mL oral |
|
suspension |
|
80 mg trimethoprim, 400 mg |
|
sulfamethoxazole/5 mL infusion. |
Tetracyclines |
|
Tetracycline |
1% solution and ointment (10 mg per mL |
|
and g) |
|
125 mg 5 mL suspension and syrup |
|
250 mg and 500 mg capsules |
|
250 mg tablets |
|
250 mg and 500 mg sterile powder (iv) |
|
100 mg and 250 mg sterile powder (im) |
Miscellaneous |
|
Bacitracin |
500 U g ophthalmic ointment |
|
50,000 U vial (injection) |
|
2500 U soluble tablet |
Chloramphenicol |
0.5% solution (5 mg mL) (topical) |
|
1.0 % ointment (10 mg mL) (topical) |
|
Capsules: 250 and 500 mg (oral) |
|
Palmitate: 150 mg mL suspension (oral) |
|
Sodium succinate: 1 g (100 mg mL) |
|
(injection) |
1 g every 6 h (im, iv) Subconjunctival: 50–150 mg in 0.5 mL Intracameral: 1 mg in 0.2–0.5 mL
50 mg mL topical (one drop every 4–6 h) 75–100 mg subconjunctival
1 g every 6 h iv
Topical: 100,000–333,000 U mL
Subconjunctival: 0.5–1.0 million U Intravitreal: 2000 U
Oral: 400,000 U every 6 h iv: 2 to 6 million U every 4 h
250–500 mg every 6 h (oral)
One or two drops every 2 to 3 h
Ointment: one to four times daily
Tablet: 4 times daily
Tablet: 2 times daily
Suspension: 8 mg kg daily trimethoprim and 4 mg kg daily sulfamethoxazole in 2 divided doses
iv: 20 mg kg daily trimethoprim and 100 mg kg daily sulfamethoxazole
3–4 times daily
1–2 g daily adults and nonpregnant women, children aged more than 8 years should receive 25 to 50 mg kg daily in two to four divided doses
2–6 times daily (topical)
10,000 U 0.5 mL subconjunctival
1000 U kg daily in 2–3 doses, not exceed 100,000 U daily
One drop two to six times daily Every 3 h
1–3 g daily in systemic therapy (4g daily max)
continued
448 • APPENDIX 5 |
PHARMACOLOGY |
|
Drug |
Preparation |
Dose |
|
|
|
Clindamycin |
Hydrochloride: 75, 150, and 300 mg |
150 mg to 300 mg every 8 h (p.o.) |
|
capsules |
|
|
Phosphate: 150 mg mL solution |
600 mg every 6 h (iv and im), |
|
(parenteral) |
not to exceed 8 g daily |
|
|
1 mg for intravitreal injection |
Erythromycin |
0.5% ointment (5 mg g) (topical) |
One to six times daily |
|
250, 333, and 500 mg tablets |
250 mg to 500 mg every 6 h |
|
Estolate: 125 and 250 mg capsules |
500 mg every 12 h |
|
125 and 250 mg mL suspension |
|
|
500 mg tablets |
|
|
Ethylsuccinate: 200 and 400 mg 5mL |
600 mg every 8 h |
|
suspension or 400 mg tablets |
|
|
Stearate: 250 and 500 mg tablets |
500 mg every 12 h |
|
Gluceptate: Powder 250 mg, 500 mg, and 1 |
1 to 4 g daily in iv |
|
g (iv) |
|
|
Lactobionate: Powder 500 mg and 1 g (iv) |
|
Imipenem/Cilastatin |
500–500 mg solution (injection) |
500 mg 500 mg every 4 h, not to exceed 4 g daily |
Polymyxin B |
Ointment (in combination with other |
Every half hour to hourly and then tapered |
|
antibiotics and/or steroids) |
(topical) |
|
Sterile powder U Vial: 500,000 |
25,000 to 40,000 U kg daily for im |
|
|
15,000 to 25,000 U kg daily for iv |
Vancomycin |
500 mg, 1 g, and 10 g vials (iv) |
1 g every 8 or 12 h |
|
1 g and 10 g (oral solution) |
500 mg to 1 g every 6 h (oral) |
|
125 and 250 mg (powder) |
25 mg 0.5 mL for subconjunctival injection |
|
|
1.0 mg in 0.1 mL for intravitreal injection |
ANTIFIBRINOLYTICS |
|
|
Aminocaproic acid |
Tablets: 500 mg |
50 mg kg every 4 h up to 30 g daily |
|
Syrup and injection: 250 mg mL |
|
ANTIFUNGALS |
|
|
Amphotericin B |
50 mg (lyophilized) |
0.005 mg intravitreal |
|
|
0.5–0.6 mg kg daily iv (maximum of 1.5 mg kg) |
|
3% ointment, cream, and lotion |
3–4 times daily |
Ketoconazole |
1% and 3% solutions |
1% solution subconjunctival |
|
200 mg tablets |
200 mg daily |
|
2% cream and shampoo |
|
Miconazole |
10 mg mL sterile solution |
300 mg daily (iv) |
|
|
1% solution (topical) |
|
2% cream and lotion |
0.25 mg intravitreal |
|
|
|
ANTIGLAUCOMA |
|
|
Beta-blockers |
|
|
Betaxolol |
0.25% Suspension |
One drop twice daily |
|
0.5% Solution |
|
Carteolol |
1% Solution |
One drop twice daily |
Timolol |
0.25% Solution |
One drop twice daily |
|
0.5% Solution |
One drop once daily (gel) |
CAIs |
|
|
Acetazolamide |
Oral tablets: 125 mg and 250 mg |
250 mg to 1000 mg daily, in four divided doses |
|
Sustained-release capsules: 500 mg |
|
|
Lyophilized powder for iv injection: 500 mg |
|
Dichlorphenamide |
Tablets: 50 mg |
25 to 50 mg, one to four times daily |
Dorzolamide |
2% solution |
One drop three times daily in the affected eye |
Methazolamide |
Tablets: 25 mg and 50 mg |
25 to 50 mg, two or three times daily |
Miotics |
|
|
Carbachol |
0.01%, 0.75%, 1.5%, and 3% solution |
0.75% to 3.0% solution three times daily |
|
|
0.01% solution intracamerally |
Pilocarpine |
0.5% to 10% solution, 4% usually maximal |
0.5% to 4.0% aqueous solution four times daily |
|
4% gel |
Once daily |
continued
|
|
APPENDIX 5 |
PHARMACOLOGY • 449 |
Drug |
Preparation |
Dose |
|
|
|
|
|
|
Ocusert: 20 g h and 40 g h |
Once every 7 days |
|
|
sustained-release rate |
|
|
Prostaglandins |
|
|
|
Latanoprost |
0.005% solution |
Once daily |
|
Sympathomimetics |
|
|
|
Apraclonidine |
0.5% and 1% solution |
0.5% solution three times daily |
|
Brimonidine |
0.2% solution |
One drop twice daily |
|
Dipivefrin |
0.1% solution |
Once or twice daily |
|
ANTI-INFLAMMATORY |
|
|
|
Nonsteroids |
|
|
|
Diclofenac |
0.1% solution |
One drop four times daily postoperatively |
|
|
Tablets: 25, 50, and 75 mg |
25 to 50 mg three times daily |
|
Flurbiprofen |
0.03% solution |
One drop every 30 minutes, for 2 h |
|
|
Tablets: 50 and 100 mg |
preoperatively |
|
Indomethacin |
0.5% and 1% suspension |
One drop four times daily |
|
Ketorolac |
0.5% solution |
One drop three times daily |
|
Suprofen |
1.0% solution |
One drop 1, 2, and 3 h preoperatively or every |
|
|
|
4 h while awake on the day of surgery |
|
ANTI-IRON |
|
|
|
Deferoxamine |
500 mg solution (injection) |
1 g initial dose; followed by 0.5 g every 4 h, |
|
|
|
not exceed 6 g daily (systemic) |
|
|
|
0.5 mL of a 10% solution twice a week |
|
|
|
(subconjunctival) |
|
|
|
10% in 1% methylcellulose four daily (topical) |
|
ANTIMETABOLITES |
|
|
|
5-Fluorouracil |
500 mg 10 mL solution. |
10 mg subconjunctival injection |
|
|
|
1 mg intravitreal injection |
|
Daunorubicin HCl |
5 mg mL solution (injection) |
7.5 g mL solution infuse for 10 minutes |
|
ANTITETANUS
Antitoxin |
10,000, 15,000, and 50,000 units |
|
(syringe or vial) |
Immune globulin |
250 units (syringe or vial) |
Tetanus toxoid |
Adsorbed and ultrafined 5 Lf U solution |
CYCLOPLEGICS |
|
AND MYDRIATICS |
|
Atropine |
0.5% and 1% sterile solution and ointment |
|
0.1 mg mL solution (indictable) |
|
0.6 mg, 0.8 mg, and 1 mg tablets |
Cyclopentolate |
0.5%, 1%, and 2% solution (topical) |
Homatropine |
2% and 5% sterile ophthalmic solution |
Phenylephrine HCL |
2.5% and 10% ophthalmic solution |
Tropicamide |
0.5% and 1.0% ophthalmic solution |
CYTOTOXIC |
|
Azathioprine |
50 mg tablets (oral) |
|
100 mg lyophilized powder (iv) |
Cyclosporin |
100 mg mL solution (oral) |
|
25 mg and 100 mg soft gelatin capsules (oral) |
|
50 mg and 1 mL vehicle (iv) |
|
1% and 2% solution (topical) |
5000 to 10,000 U (prophylaxis)
40,000 to 100,000 U (iv treatment)
250 U (prophylaxis)
5000 to 10,000 U (im treatment)
Three injections of 0.5 mL; second injection 5 weeks after the first one, the third 6–12 months later
Three times daily (solution),
Once daily (ointment)
One drop three or four times daily Three times daily
One drop twice or three times daily
2–3 mg kg daily
2.5–5.0 mg kg daily
Topical solution 5 times daily
continued
450 • APPENDIX 5 |
PHARMACOLOGY |
|
Drug |
Preparation |
Dose |
|
|
|
Cyclophosphamide |
25 mg and 50 mg tablets |
1–2 mg kg daily |
|
100 mg, 200 mg, 500 mg, 1 g, and 3 g |
|
|
powder (im, iv) |
|
Chlorambucil |
2 mg sugar-coated tablets (oral) |
0.1 mg kg daily |
Methotrexate |
2.5 mg tablets |
Weekly dose of 2.5 mg to 7.5 mg in a single |
|
2.5 and 25 mg mL solution (im, iv, |
or divided dose with a maximum dose |
|
intrathecal) |
of 15 mg week |
|
20 mg, 50 mg, 100 mg, 250 mg, and 1 g |
|
|
powder (im, iv, intrathecal) |
|
ENZYMES |
|
|
Hyaluronidase |
150 U mL solution |
5–7 U per mL of anesthetic solution |
Urokinase |
5000 U, 9000 U, and 250,000 U, solution |
Intravitreal: 25,000 U in 0.3 mL |
|
|
iv: 4400 U kg initially (90 mL h every 10 min, |
|
|
then 15 mL h every 12 h) |
HYPEROSMOTICS |
|
|
Glycerol |
50% and 75% solution |
1–1.5 g kg every 6 h |
Isosorbide |
45% solution |
1.5 g kg every 6 h |
Mannitol |
10% and 20% solution |
1–1.5 g kg (3–5 mL per minute) |
Topical osmotic: |
|
|
Glucose |
40% and 50% solution |
2–3 drops three times daily |
Sodium chloride |
2%, 5%, and 10% solution and ointment |
Twice or three times daily |
STERILIZING |
|
|
AND DISINFECTING |
|
|
Providone-iodine |
Swab stick with 10% solution |
Apply to procedure site as needed |
STEROIDS |
|
|
Betamethasone |
3 mg mL suspension |
|
Tablet: 0.6 mg |
|
Syrup: 0.6 mg 5 mL |
1 mg subconjunctival/Tenon, and transeptal Initial doses: 0.5 mg to 9 mg daily (systemic)
Dexamethasone |
Alcohol: 0.1% suspension and 0.05% |
Individualized dose (topical) |
|
ointment |
|
|
Sodium phosphate: 0.1% solution |
Individualized dose (topical) |
|
and 0.05% ointment |
|
|
Sodium: 0.25 to 6 mg tablet |
0.75 mg to 9 mg p.o. daily |
|
0.5 mg 5 mL oral suspension |
|
|
0.5 mg 5 mL solution |
|
|
Sodium phosphate: 4 to 24 mg mL |
0.75 mg to 9 mg iv or im daily |
|
solution iv |
|
|
Acetate: 8 mg mL suspension im |
4–8 mg subconjunctival/Tenon, and transeptal |
|
Acetate: 8 to 16 mg mL suspension |
0.4 mg intravitreal |
|
Sodium phosphate: 4, 10, 24 mg mL |
4 mg retrobulbar |
|
solution |
|
Fluorometholone |
0.25% and 0.1% suspension |
Individualized dose (topical) |
|
0.1% ointment |
|
Hydrocortisone |
5 to 20 mg tablet |
20 to 240 mg systemic therapy |
|
10 mg 5 mL suspension |
|
|
25 and 50 mg suspension im |
|
|
50 mg mL solution im/iv |
|
|
Sodium succinate: 100 to 1000 mg powder |
50–125 mg subconjunctival/Tenon |
Methylprednisolone |
2 to 32 mg tablet |
20 to 80 mg systemic therapy |
|
Sodium succinate: 40 to 1000 mg |
|
|
powder im iv |
|
|
Sodium succinate: 40 mg mL, 125 mg 2 |
40–125 mg subconjunctival/Tenon |
|
mL, 2g 30 mL solution |
|
|
Acetate: 20 to 80 mg mL depot suspension |
40–80 mg 0.5 mL transeptal, retrobulbar |
continued
|
|
APPENDIX 5 PHARMACOLOGY • 451 |
Drug |
Preparation |
Dose |
|
|
|
Prednisolone |
Phosphate: 0.5% solution and 0.25% |
Individualized dose (topical) |
|
ointment |
|
|
Acetate: 0.12% and 1.0% suspension |
5 mg to 50 mg (systemic therapy) |
|
Sodium phosphate: 0.12, 0.5, and 1% |
|
|
solution |
|
|
1 to 5 mg tablet |
|
|
15 mg mL syrup |
|
|
Acetate: 25 to 100 mg mL suspension im |
|
|
Sodium phosphate: 20 mg mL solution |
|
|
im iv |
|
Prednisone |
1.0 to 50 mg tablet |
1.0 to 1.5 mg kg initial dose (systemic therapy) |
|
5 mg mL oral solution |
|
Triamcinolone |
Diacetate: 4 mg mL syrup |
4 mg to 48 mg daily (systemic) |
|
1 to 8 mg tablet |
|
|
40 mg mL suspension im |
|
|
25 and 40 mg mL suspension |
40 mg subconjunctival/Tenon |
|
Acetonide: 10 and 40 mg mL suspension |
40 mg transeptal |
VISCOELASTICS |
|
|
Chondroitin sulfate |
4% |
In surgery as needed |
Hydroxypropyl |
2% |
In surgery as needed |
methylcellulose |
|
|
Sodium |
1%, 1.4%, and 1.6% |
In surgery as needed |
hyaluronate |
|
|
|
|
|
