Famciclovir (Famvir)
Dosage form:
Tablets 125 mg, 250 mg
Pharmacological group:
Antiviral
Therapeutic use:
Feline herpesvirus (FHV-1) ocular disease
Dosage:
Cats:
Doses vary. Highly effective dose: 90 mg/kg every 8–12 hours until clinical improvement.
Dose of 40 mg/kg every 8–12 hours is also effective but treatment duration may be longer.
Other doses: 62.5–125 mg per cat every 8–24 hours.
Dose of 40 mg/kg every 8–12 hours is also effective but treatment duration may be longer.
Other doses: 62.5–125 mg per cat every 8–24 hours.
Famotidine (Pepcid, Pepcid AC)
Dosage form:
Tablets 20 mg, 40 mg; powder for injection 20 mg
Pharmacological group:
H2 receptor antagonist
Therapeutic use:
Gastroprotectant
Dosage:
Dogs:
0.5–1 mg/kg orally or intravenously every 12–24 hours
Cats:
0.5–1 mg/kg orally or intravenously every 12–24 hours
Fenbendazole (Panacur, Safe-Guard)
Dosage form:
Tablets 150 mg; 20–22% powder for livestock animals
Pharmacological group:
Antiparasitic
Therapeutic use:
Active against roundworms, tapeworms, and Giardia
Dosage:
Dogs:
1) Roundworms/tapeworms: puppies <6 months — 50 mg/kg orally once every 24 hours for 3 consecutive days; over 6 months — 100 mg/kg orally as a single dose.
2) Giardiasis: 50 mg/kg orally once every 24 hours for 5 consecutive days.
2) Giardiasis: 50 mg/kg orally once every 24 hours for 5 consecutive days.
Cats:
1) Roundworms/tapeworms: kittens <6 months — 20 mg/kg orally once every 24 hours for 5 consecutive days; over 6 months — 100 mg/kg orally as a single dose.
2) Giardiasis: 50 mg/kg orally once every 24 hours for 5–7 consecutive days.
2) Giardiasis: 50 mg/kg orally once every 24 hours for 5–7 consecutive days.
Filgrastim (Neupogen, Granix)
Dosage form:
Injectable solution: 150 mcg/mL and 300 mcg/mL (15 and 30 million IU/mL)
Pharmacological group:
Hematopoietic stimulant
Therapeutic use:
Serious neutropenias, especially those associated with cytostatic drug use
Dosage:
Dogs:
100,000–500,000 IU (1–5 mcg)/kg/day subcutaneously for 3–5 days
Cats:
100,000–500,000 IU (1–5 mcg)/kg/day subcutaneously for 3–5 days
Fipronil (Frontline, Fiprospot)
Dosage form:
Topical solution (spot-on). Various formulations, often in combination with other substances.
Pharmacological group:
Antiparasitic
Therapeutic use:
Active against fleas, Ixodes ticks, lice, biting lice, Otodectes, Sarcoptes, and mosquitoes
Dosage:
Dogs:
Based on formulation. Minimum 6.7 mg/kg topically
Cats:
Based on formulation. Minimum 6.7 mg/kg topically
Ferrets:
Based on formulation. Minimum 6.7 mg/kg topically
Rabbits:
7.5 mg/kg applied to skin
Cavies:
7.5 mg/kg applied to skin
Hamsters:
7.5 mg/kg applied to skin
Rats:
7.5 mg/kg applied to skin
Firocoxib (Previcox)
Dosage form:
Tablets 57 mg, 227 mg
Pharmacological group:
NSAID (COX-2 selective)
Therapeutic use:
Analgesic, anti-inflammatory, and antipyretic effects
Dosage:
Dogs:
5 mg/kg orally once every 24 hours, with or without food
Fluconazole (Diflucan)
Dosage form:
Capsules 50 mg, 150 mg; injectable solution 2 mg/mL
Pharmacological group:
Antifungal
Therapeutic use:
Effective against Blastomyces, Candida, Cryptococcus, Coccidioides, Histoplasma, and Microsporum canis infections
Dosage:
Dogs:
2.5–5 mg/kg orally every 12 hours
Cats:
Cryptococcosis with ocular or CNS involvement: 50 mg per cat intravenously or orally once every 24 hours.
Dermatophytosis, nasal cryptococcosis: 5 mg/kg orally once every 24 hours.
Dermatophytosis, nasal cryptococcosis: 5 mg/kg orally once every 24 hours.
Flunixin Meglumine (Banamine, Flunixin)
Dosage form:
Injectable solution: 50 mg flunixin/mL
Pharmacological group:
NSAID
Therapeutic use:
Anti-inflammatory, analgesic, and antipyretic agent for acute inflammatory processes and pain syndromes
Dosage:
Dogs:
1.1 mg/kg intramuscularly once every 24 hours; per some guidelines, not to exceed 3 days
Fluralaner (Bravecto)
Dosage form:
Chewable tablets: 112.5 mg, 250 mg, 500 mg, 1000 mg, or 1400 mg per tablet
Pharmacological group:
Isoxazoline class
Therapeutic use:
Antiparasitic. Active against Ixodes ticks, fleas, Demodex, Otodectes, and Sarcoptes mites.
Dosage:
Dogs:
25–56 mg/kg orally once every 12 weeks
Cats:
40–93 mg/kg topically (spot-on) once every 12 weeks
Furazolidone (Furoxone)
Dosage form:
Nitrofuran derivative
Pharmacological group:
Antibacterial and antiprotozoal agent. Active against Giardia, Vibrio cholerae, Trichomonas, Coccidia, and many strains of E. coli, Enterobacter, Campylobacter, Salmonella, and Shigella.
Therapeutic use:
Treatment of Giardia: 4 mg/kg orally every 12 hours for 7–10 days
Dosage:
Cats:
for the treatment of Giardia - 4 mg/kg p/o every 12 hours for 7-10 days.
Furosemide (Lasix, Salix)
Dosage form:
Injectable solution 10 mg/mL and 50 mg/mL; tablets 20 mg, 40 mg
Pharmacological group:
Loop diuretic
Therapeutic use:
CHF, pulmonary edema, hypertension, hyperkalemia, etc.
Dosage:
Dogs:
1) Acute life-threatening heart failure: 1–4 mg/kg intravenously or intramuscularly every 1–4 hours until stable, then extend intervals to every 8–12 hours.
2) Chronic heart failure: 1–5 mg/kg orally every 8–48 hours. Usual maintenance: 1–2 mg/kg every 12–24 hours.
3) Acute kidney injury/uremia: after restoring fluid deficit — 2 mg/kg intravenously. If no diuresis within 1 hour, repeat at 4 mg/kg; if still no response after another hour, administer 6 mg/kg.
4) Hypokalemic diuresis: 2 mg/kg intravenously every 6 hours.
2) Chronic heart failure: 1–5 mg/kg orally every 8–48 hours. Usual maintenance: 1–2 mg/kg every 12–24 hours.
3) Acute kidney injury/uremia: after restoring fluid deficit — 2 mg/kg intravenously. If no diuresis within 1 hour, repeat at 4 mg/kg; if still no response after another hour, administer 6 mg/kg.
4) Hypokalemic diuresis: 2 mg/kg intravenously every 6 hours.
Cats:
1) Acute life-threatening heart failure: 1–4 mg/kg intravenously or intramuscularly every 1–4 hours until stable, then extend intervals to every 8–12 hours.
2) Chronic heart failure: 1–5 mg/kg orally every 8–48 hours. Usual maintenance: 1–2 mg/kg every 12–48 hours.
3) Acute kidney injury/uremia: after restoring fluid deficit — 2 mg/kg intravenously. If no diuresis within 1 hour, repeat at 4 mg/kg; if still no response after another hour, administer 6 mg/kg.
4) Hypokalemic diuresis: 2 mg/kg intravenously every 6 hours.
2) Chronic heart failure: 1–5 mg/kg orally every 8–48 hours. Usual maintenance: 1–2 mg/kg every 12–48 hours.
3) Acute kidney injury/uremia: after restoring fluid deficit — 2 mg/kg intravenously. If no diuresis within 1 hour, repeat at 4 mg/kg; if still no response after another hour, administer 6 mg/kg.
4) Hypokalemic diuresis: 2 mg/kg intravenously every 6 hours.
Ferrets:
1–4 mg/kg intravenously, intramuscularly, or orally every 8–12 hours
Rabbits:
1–4 mg/kg subcutaneously or intramuscularly every 4–6 hours, or 5–10 mg/kg subcutaneously or intramuscularly every 12 hours
Cavies:
1–4 mg/kg subcutaneously or intramuscularly every 4–6 hours, or 5–10 mg/kg subcutaneously or intramuscularly every 12 hours
Hamsters:
1–4 mg/kg subcutaneously or intramuscularly every 4–6 hours, or 5–10 mg/kg subcutaneously or intramuscularly every 12 hours
Rats:
1–4 mg/kg subcutaneously or intramuscularly every 4–6 hours, or 5–10 mg/kg subcutaneously or intramuscularly every 12 hours