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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