Dog Formulary - VetInfo
 
All medications to be given orally unless otherwise noted. IM = intramuscular injection; IP = intraperitoneal injection; SC = subcutaneous injection; IV = intravenous injection
 
Drug Available Formulations Indication Dosage Major Precautions /Notes
 
acepromazine PromAce Rx, generics; 10mg/ml inj., 2mg, 5mg, 10mg tablets 1) Sedation, car sickness

2) Preanesthesia

 1) up to 1mg/lb, lower dosages often work well

2) 0.01 to 0.02mg/lb SQ injection

Very few veterinarians use the high dose ranges, included preanesthesia injection dosage due to show low dosage range
acetaminophen Tylenol Rx anti-inflamma-

tory, may be in other medications

 15mg/kg every 8 hours Never administer acetaminophen to cats!
acetaminophen in combination with codeine or hydrocodone Tylenol III, Vicodin, others; several combinations pain relief Dose based on the codeine or hydrocodone dosage

1) codeine = 0.5 to1mg/kg

2) hydrocodone = 0.25 to 0.5mg/kg

 can be used for cough suppression but it is probably better to use the individual codeine or hydrocodone products for this
acetazolamide Diamox 125mg, 250mg glaucoma 4-8mg/kg every 8 to 12 hours  
acetylcysteine Mucomyst Rx eye ulcers 2% solution topically q2hr

  
Adequan (polysulfated-glycosaminoglycan) 100mg/ml for injection arthritis 4.4mg/kg IM usually given weekly for 5 doses then every 3 weeks
albendazole Valbazen 113.6mg/ml suspension 1) coccidia

2) giardia

 1) 25-50mg/kg every 12hr x 3 days

2) 25mg/kg every 12hr x 2 days

  
albuterol Ventolin or Proventil 2,4,5mg tablets, 2mg/5ml syrup   20-50ug/kg every 6 hrs may use 100ug/kg for brief periods;

available in inhalant form

allopurinol Lopurin, Zyloprim; 100 and 300mg tablets urea stones in dalmatians 10mg/kg every 24 hours May be used more frequently initially
alprazolam Xanax Rx; 2mg tablets anxiety/panic 0.01 to 0.1mg/kg as necessary, do not exceed 4mg/dog/day 1 to 2mg is usually enough for a medium sized dog
aluminum carbonate gel Basalgel 500mg capsules   10 to 30 mg/kg with meals or every 8 hrs  
aluminum hydroxide Amphojel 64mg/ml oral suspension, 600mg tablet   10-30mg/kg with meals or every 8 hrs.  
amikacin

(injectable antibiotic)

 Amiglyde-V, generics 5mg/ml injection   5mg to 6.5mg/kg SC or IV every 8 hours or 20mg/kg every 24 hours causes kidney failure in some patients
aminopentamide Centrine, 0.2mg tablet, 0.5mg/ml injection vomiting 0.01 to 0.03mg/kg every 8 to 12 hours not very effective in our opinion
aminophylline generics; 100 and 200mg tablets bronchodilation 10mg/kg every 8 hrs it is considered better to use theophylline in most cases for diseases both treat
amitraz Mitban demodectic mange 1 bottle (10.6ml) per 2 gallons of water, sponge mixture on dog thoroughly every 2 weeks. treament often causes drowsiness and some deaths have been reported after use; other dosages and treatment intervals have been advocated but use caution if increasing dosage or decreasing treatment interval
amitriptyline Elavil, 10mg, 25mg, 50mg, 75mg, 100mg tabs 1) chronic pain

2) thunderstorm and other anxieties

 1) 1 to 2mg/kg every 12 to 24 hours

2) 1 to 4mg/kg every 12 to 24 hours continuously during thunderstorm season

 for thunderstorm anxiety this is usually used continuously and supplemented with diazepam or alprazolam on stormy days
amlodipine Norvasc; 2.5mg tablets high blood pressure 2.5mg/dog/day or 0.1mg/kg  
ammonium chloride generics urinary acidification 100mg/kg every 12 hours mix with food
amoxicillin Amoxi-Tabs, Amoxi-Drops, others; 50mg, 100mg tabs, 50mg/ml oral suspension antibiotic 10mg/lb every 12 hours note that this dosage is in pounds, not kg
amoxicillin/clav-ulanic acid Clavamox, 62.5mg/ml oral suspension, 62.5mg, 125mg tabs antibiotic 12.5 to 25mg/kg every 12 hours Augmentin Rx, the human medication of similar formulation has higher clavulanic acid level
ampicillin generics antibiotic 20 to 40mg/kg every 8 hours  
amprolium Corid; 20% powder, 9.6% solution coccidia approximately 1.25gm/day  
apomorphine compounded induce vomiting in toxicities 0.25mg instilled in conjunctiva of the eye or 0.02 to 0.04mg/kg IV this is the most reliable drug for inducing vomiting in dogs in our experience
ascorbic acid Vitamin C   dosages of more than 500mg/day have slight safety concerns  
aspirin generics, 81mg tablets 1) pain relief

2) anti-

inflammatory dose

 1) 10mg/lb every 12 hours

2) 20 to 25mg/kg every 12 hrs

 some dosing schedules call for every 72 hr use since aspirin can be toxic to cats
astemizole Hismanal; 10mg tablets   0.2mg/kg every 24 hours  
atenolol Tenormin; 25mg, 50mg tablets, 25mg/ml oral suspension 1) heart arrhythmia's

2) hypertension

 6.25 to 12.5mg/dog every 12 hrs  
azathioprine Imuran; 50mg tablets immune mediated diseases 2mg/kg daily until disease is controlled, then 1mg/kg every 48 hours Use lowest dose that will control the disease long term
azithromycin Zithromax, 1gm packets for suspension, 250mg tablets and capsule, 600mg tablet chronic upper airway disease 10mg/kg every 5 days or

3.3mg/kg every 24 hours for 3 doses

  
 
benazepril Lotensin; 5mg, 10mg, 20mg and 40mg tablets high blood pressure 0.25 to 0.5mg/kg every 24 hrs  
bethanechol Urecholine; 5mg, 10mg, 25mg and 50mg tablets   5 to 15mg/dog every 8 hours  
bismuth subsalicylate Pepto-Bismol; 262mg/15ml   1ml to 3ml/kg every 8hrs  
buspirone Buspar; 5mg and 10mg tablets anxiety disorders 1mg/kg every 8 to 24 hous may reduce inhibitions for biting behaviors, so use with caution
butorphanol Torbutrol; 1, 5 and 10mg tablets 1) coughing

2) pain relief

 1) 0.55mg/kg every 6 to 8 hrs

2)0.55 to 1.1mg/kg every 6 to 8 hours

 only moderately effective for pain relief
 
calcitriol Rocaltrol chronic renal failure 2.5 to 3ng/kg every 24 hrs

note that this is nanograms/kg

 dosage depends on calcium and phosphorous levels, usually must be formulated by compounding pharmacies, controversial effectiveness
calcium carbonate Tums, generics, available calcium varies dietary requirements, phosphate binder 60 to 100mg/kg per day  
calcium lactate generics dietary requirements 0.5 to 2.0gm/dog/day usually given in divided doses with meals
captopril Capoten; 25mg tablet   0.5 to 2mg/kg every 8 to 12 hours  
carbenicillin Geocillin; 500mg tablet antibiotic 10mg/kg every 8 hours  
carprofen Rimadyl; 25mg, 75mg and 100mg tablets   2.2mg/kg every 12 hours or 4.4mg/kg every 24 hours May cause liver failure in some dogs, discontinue if inappetance develops while on the medication
cascara segrada Nature's Remedy; 100mg tablets, 325mg tablets constipation 1 to 5mg/kg/day  
castor oil generics, 100% solution   8 to 30ml/day  
cefaclor Ceclor; 250 and 500mg capsules, 25mg/ml oral suspension antibiotic 4 to 20mg/kg every 8 hrs  
cefadroxil Cefa-Tabs; 50mg, 100mg, 200mg and 1gm tablets; Cefa-Drops 50mg/ml antibiotic 22 to 30mg/kg every 12 hours  
cefixime Suprax 1) general antibiotic

2) urinary tract infections

 1) 10mg/kg every 12 hrs

2) 5mg/kg every 12 to 24 hours

  
cephalexin Keflex, generic antibiotic 10 to 15mg/lb every 12 hours  
chlorambucil Leukeran; 2mg tablet   0.1 to 0.2mg/kg every 48hrs may start with every 24hr usage
chloramphenicol generics; 30mg/ml oral suspension, 250mg capsules antibiotic 40 to 50mg/kg every 8 hours handle cautiously, minor exposure can be toxic to humans
chlorothiazide Diuril; 50mg/ml oral suspension diuretic 20-40mg/kg every 12 hours  
chlorpheniramine maleate Chlortrimeton, generics; 4mg tablets antihistamine 4 to 8mg/dog every 12 hours  
cimetidine Tagamet; 100,150, 200, 300mg tablets 1)ulcers

2)gastrointestinal protectant for kidney failure patients

 1)10mg/kg every 8 hrs

2) 2.5 to 5mg every 12 hours

  
cisapride Propulsid; 10mg tablet megacolon, constipation 0.1 to 0.5mg/kg every 8 to 12 hours available from compounding pharmacies
clemastine Tavist; 1.34mg tablet, 2.64mg tablet, 0.134mg/ml syrup Allergic skin disease or upper respiratory disease 0.05mg to 0.1mg/kg every 12 hours  
clindamycin Antirobe, Cleocin; 25mg capsules, 75mg capsules, 150mg capsules, 25mg/ml syrup antibiotic, 11mg/kg every 12 hours or 22mg/kg every 24 hours Sometimes used for 5 to 10 days each month for chronic gingivitis
clomipramine Clomicalm (veterinary), Anafranil (human), 5, 10mg, 20mg, 25mg, 50mg, 80mg tablets behavioral disorders 1 to 2mg/kg every every 12 hours For severe separation anxiety sometimes 3mg/kg is used
clonazepam Klonopin, 0.5, 1 and 2mg tablets   0.5mg/kg every 8 to 12 hours  
clorazepate Tranxene; 3.75, 7.5, 11.25 and 15mg tablets   2mg/kg every 12 hours  
cloxacillin Cloxapen; 25mg/ml oral suspension anitibiotic 20 to 40mg/kg every 8 hours  
codeine generics, 15 mg, 30mg, 60mg tablets, 5mg/ml syrup, 3mg/ml solution 1)cough suppressant

2) pain relief

 1) 0.1 to 0.3mg/kg every 4 to 6 hrs

2) 0.5 to 1mg/kg every 4 to 6 hours

 For combination products with aspirin or acetaminophen it is usually OK to dose for the codeine
cholchicine generic, 500ug and 600ug tablets (0.5, 0.6mg)   0.01 to 0.3mg/kg every 24 hours  
cyclophos-

phamide

 Cytoxan; 25 and 50mg tablets   6.25 to 12.5mg/cat once daily for 4 days, then 3 days off  
cyclosporine (oral) Sandimmune, Neoral; 100mg/ml oral solution, 25mg and 100mg capsules Immune mediated diseases 3 to 7mg/kg every 12 hours Important to adjust dosage based on measuring serum levels
cyclosporine ophthalmic Optimmune 0.2%

compounded drops of 1% or 2% in olive or corn oil

   ointment: apply a 1/4th inch strip every 12 hours

drops: 1 drop every 12 hours

 To meet the legal requirements for dispensing it is necessary to start with the approved medication and see that it does not work before using compounded formulas
cyproheptadine Periactin; 4mg tablet, 2mg/5ml syrup asthma 1) 1.1mg/kg every 12 hours

  
Dantrolene Dantrium; 100mg capsule   0.5 to 2mg/kg every 12 hours  
dexamethasone Azium and generics; injection 2mg/ml, 4mg/ml, tablets 0.25mg, 0.5mg, 0.75mg, 1mg, 1.5mg, 2mg, 4mg and 6mg 1) inflammation

2) shock

3) spinal injury

4) dexamethasone suppression testing

 1) 0.1mg/kg every 24 to 72 hrs

2 and 3) 2.2 to 4.4mg/kg IV

4) 0.1mg/kg IV, take samples pre and 4 and 8hrs post injection

  
dextrometh-

orphan

 many forms cough suppression 0.5 to 2mg/kg every 6 to 8 hours  
diazepam Valium; 5mg/ml injection, 2mg, 5mg tablets seizures

 1) 0.5mg/kg IV or 1mg/kg rectally

 Rectal administration of diazepam for seizures works well, allows home treatment
dichlorphen-

amide

 Daranide; 50mg tablet   3 to 5mg/kg every 8 to 12 hours  
dichlorvos Task; 10mg and 25mg tablets deworming (hook, round, whip worms) 11mg/kg Dogs MUST be heartworm negative if this medication is used
diethylstilbestrol (DES) only available through compounding pharmacies urinary incontinence 0.1 to 1mg/dog every 24 hours then as infrequently as possible Often once or twice weekly doses will work. Do not exceed 1mg/dog!
difloxacin Dicural; 11.4, 45.4 and 136mg tablets antibiotic (fluoroquinolone class) 5 to 10mg/kg once a day  
digoxin Lanoxin, Cardoxin; 0.0625, 0.125, 0.25mg tablets, 0.05 and 0.15mg/ml elixir      
diltiazem Cardizem; 30mg, 60mg, 90mg, 120mg tablets   0.5 to 1.5mg/kg every 8 hours For long acting (Cardizem CD), use 10mg/kg once a day
dimhenhydrinate Dramamine; 50mg tablets Car sickness 4 to 8mg/kg every 8 hours  
diphenoxylate Lomotil; 2.5mg tablets to control diarrhea 0.1 to 0.2mg/kg every 8 to 12 hours  
ducosate (dioctyl-sodium-

suflosuccinate, DSS)

 many OTC brands stool softener 50mg to 200mg/dog every 12 to 24 hours do not use at the same time as any mineral oil or petrolatum based product; if using ducuosate calcium, use ½ dosage
doxycycline generics; 50mg capsules, 100mg capsules or tablets; 10mg/ml oral suspension antibiotic 3 to 5mg/kg every 12 hours or 10mg/kg every 24 hours  
enalapril Enacard, Vasotec; 2.5mg, 5mg, 10mg and 20mg tablets hypertension 0.5mg/kg every 12 to 24 hours most commonly used once daily
Enrofloxaxin Baytril; 5.7mg, 22.7mg tablets antibiotic 5 to 20mg/kg/day  
Epsiprantel Cestex; 12.5mg, 25mg, 50mg, 100mg tablets kills tapeworms 5.5mg/kg PO  
erythromycin generics; 250mg tablet, 500mg tablet antibiotic 10 to 20mg/kg every 8 to 12 hrs may cause vomiting
etretinate Tegison; 10 and 25mg capsules   1mg/kg/day with food or 10mg/day for small dogs and 10mg every 12 hours for big dogs (>35lbs)  
famotidine Pepcid AC; 10mg tablet GI protectant 0.5mg/kg every 12 to 24 hours  
fenbendazole Pancur Granules 22.7:; 100mg/ml liquid dewormer 50mg/kg/day for 3 days  
fentanyl transdermal patch Duragesic; 25ug, 50ug, 75ug, 100ug patches pain relief Apply 1 patch every 3 days good pain reliever for post surgical pain
ferrous sulfate OTC iron supplement 100mg to 300mg/dog every 24 hours  
florfenical Nuflor injectable; 300mg/ml antibiotic 22mg/kg every 12 hours of the injectable liquid given orally  
fluconazole Diflucan; 50mg, 100mg, 150mg, 200mg tablets; 10 or 40mg/ml oral suspension antifungal 10-12mg/kg day  
flucytosine Ancobon; 75mg/ml oral suspension, 250mg capsule   25 to 50mg/kg every 6 to 8 hours  
fludrocortisone Flurinef; 0.1mg tablets hypoadrenocorticism 0.2 to 0.8mg/dog or 0.02mg/kg every 24 hours Usually start with low dosage and increase as necessary
Flunixin Banamine; 250mg packet of granules Anti-inflamma-

tory

 1.1mg/kg/day Best not to use for more than 3 days
fluoxetine Prozac; 10mg and 20mg capsules, 4mg/ml oral solution behavioral disorders 0.5mg to 1.0mg/kg/day Usually start with the low dose and then increase
furosemide Salix; 12.5mg, 50mg tablets diuretic 2 to 6mg/kg up to three times a day water intake must not be restricted when using diuretics
gemfibrozil Lopid; 300mg and 600mg capsules   7.5mg/kg every 12 hours  
glucosamine-

chondroitin

 Cosequin, many OTC brands; 500mg/400mg tablets arthritis 1 standardized tablet per 25 lbs of body weight per day  
glyburide Glynase, others; 1.25mg, 2.5mg and 5mg tablets   0.2mg/kg every 24 hours  
glycerin generic oral solutions   1 to 2mg/kg every 8 hours  
griseofulvin, microsize Fulvicin U/F; 125mg, 250mg, 500mg tablets, 25mg/ml oral suspension and 125mg/ml oral syrup ringworm 50mg/kg every 24 hours  
griseofulvin, ultramicrosize Fulvicin P/G; GrisPEG; 100mg, 125mg, 165mg, 250mg, 330mg tablets ringworm 15mg/kg every 12 hours (30mg/kg/day)  
hydralazine Apresoline; 10mg tablet   0.5mg/kg  
hydrochlor-

thiazide

 HydroDiuril; 25mg, 50mg tablets, 10 and 100mg/ml oral solution diuretic 2 to 4mg/kg every 12 hours  
hydrocortisone Cortef; 5mg, 10mg and 20mg tablets 1)corticosteroid replacement therapy

2) anti-

inflammatory

 1) 1 to 2mg/kg every 12 hours

2) 2.5 to 5mg/kg every 12 hours

  
hydroxyurea Hydrea; 500mg capsules   50mg/kg once a day, use 3 days per week  
imipramine Tofranil; 10mg, 25mg, 50mg tablets   2 to 4mg/kg every 12 to 24 hours  
ipecac syrup   to induce vomiting 3 to 6ml /dog About ½ to 1 teaspoonful
isotretinoin Accutane; 10, 20 and 40mg tablets   1 to 3mg/kg every 24 hours  
itraconazole Sporanox; 100mg capsules fungal infections 2.5mg/kg every 12 hours or 5mg/kg every 24 hours  
ivermectin Ivomec, Eqvalan; 10mg/ml solution (oral or injectable); Heartgard or Iverhart/ 68ug, 136ug and 272ug tablets 1)heartworm prevention

2) demodectic mange

 1) 6ug/kg once a month to prevent heartworms

2) 0.25 to 0.6mg/kg daily

 use for mange until two skin scrapings taken at weekly intervals are negative
kaopectate Kaopectate   1 to 2ml/kg every 2 to 6 hours  
ketoconazole Nizoral; 200mg tablet, 100mg/ml oral suspension 1) most fungal infections

2) Malassezia yeast infections

 1) 10 to 15mg/kg every 8 to 12 hours

2) 10mg/kg every 24 hours

  
ketoprofen Orudis-KT (OTC); 12.5mg tablet non-steroidal anti-inflamma-

tory medication

 1mg/kg every 24 hours for no more than 5 days  
lactulose Chronulac, Enulose, Generlac; 10gm/15ml 1) constipation

2) hepatic encephalopathy

 1) 1ml/10 lbs every 8 to 12 hours

2) 0.5ml/kg every 8 hours

 (not first dose is in pounds)
leucovorin Wellovorin; 5mg, 10mg, 15mg and 25mg tablets, 3 and 5mg/ml solutions antidote for pyrimethamine (Daraprim Rx) poisoning 1mg/kg every 24 hours  
levamisole Levasole, Tamisol; 11.7gm/13gm packet 1) immune stimulant

2)heartworm microfilaria

 1) 0.5 to 2mg/kg usually every 48 to 72 hours

2) 10mg/kg every 24 hours

  
levodopa Larodopa; 100mg, 250mg, 500mg tablets hepatic encephalopathy 6.8mg/kg first dose, then 1.4mg/kg every 6 hours  
levothyroxine Soloxine, Thyro-Tabs; 0.1mg, 0.2mg tablets hypothyroidism (usually post therapy for hyperthyroidism) usually 0.1mg per 10 lbs of body weight up to 1mg/day maximum, adjusted by serum levels note dosage in pounds
lincomycin Lincocin; 100mg, 200mg and 500mg tablets antibiotic 15 to 25mg/kg every 12 hours  
lisinopril Prinivil, Zestril; 2.5mg, 5mg, 10mg, 10mg and 40mg tablets   0.5mg/kg every 24 hours  
loperamide Immodium AD; 2mg tablet, 0.2mg/ml liquid control diarrhea 0.1mg/kg every 8 to 12 hours  
lufenuron Program; 45mg, 90mg, 135mg, 204.9mg and 409.8mg tablets 1) flea control

2) ringworm

 1) 10mg/kg on the same day each month

2) 80 to 100mg/kg two days in a row, then monthly until cultures are negative

  
magnesium citrate Citroma, Citro-Mag   2 to 4ml/kg  
magnesium hydroxide Milk of Magnesia cathartic 15 to 50ml/kg  
magnesium sulfate Epsom salts   8 to 25gm/dog every 24 hours  
MCT oil OTCs   1 to 2ml/kg/day in food  
mebendazole Telmintic dewormer (hooks, rounds, whips) 22mg/kg with food once a day for 3 days  
meclizine Antivert; 12.5, 25 and 50mg tablets motion sickness 25mg/dog/day give 1 hour prior to traveling
megestrol acetate Ovaban, Megace; 5mg and 20mg tablets 1) stop estrus after first signs

2) delay estrus before signs

3) behavioral problems

 1) 2mg/kg every 24 hours for 8 days

2) 0.5mg/kg once a day for 30 days

3) 2 to 4mg/kg initially then reduce to lowest effective dose at longest possible interval

  
Metamucil (psyllium preparations) fiber source 1 teaspoonful per 10 to 25 lbs body weight note dosage is in pounds
metaproterenol Alupent, Metaprel; 10 and 20mg tablets, 5mg/ml syrup, inhalers   0.325 to 0.65mg/kg every 4 to 6 hours  
methazolamide Neptazane; 25 and 50mg tablets   2 to 6mg/kg every 8 to 12 hours  
methanamine hippurate Hipres, Urex; 1 gram tablets   500mg/dog every 12 hours  
methanimine mandelate Mandelamine; 1 gram tablet, 50 and 100mg/ml suspension   10 to 20mg/kg every 8 to 12 hours  
methionine

(d,l methionine)

 Uroeze, MethioForm; several forms   100 to 350mg/kg per dog per day  
methocarbamol Roaxin-V; 500 and 750mg tablets muscle relaxant, may work for some forms of tremoring 22 to 44mg/kg every 8 hours as necessary to control tremoring  
methylpred-

nisolone

 Medrol; 1mg, 2mg, 4mg, 8mg, 18mg and 32mg tablets corticosteroid 0.22 to 0.44mg/kg every 12 to 24 hours, use on alternate days for longer term use  
methyltestos-

terone

 Android, generics; 10 and 25mg tablets   5 to 25mg/dog every 24 to 48 hours  
metoclopramide Reglan; 5mg, 10mg tablets, 1mg/ml oral solution to control vomiting 0.2 to 0.5mg/kg every 6 to 8 hours  
metoprolol tartrate Lopressor; 50 and 100mg tablets   0.5 to 1.0mg/kg, up to 50mg/dog/day  
metronidazole Flagyl, generics; 250mg and 500mg tablets, 50mg/ml suspension 1) anaerobic infections

2) giardia infection

3) inflammatory bowel disease

 1) 10 to 25mg/kg every 24 hours

2) 17mg/kg every 24 hours for 8 days

3) 5 to 15mg/kg every 24 hours

 long term use associated with cancer in laboratory animals
milbemycin oxime Interceptor; 2.3mg, 5.75mg, 11.5mg and 23mg tablets 1) heartworm prevention

2) demodecosis

 1) 0.5mg/kg on the same day each month

2) 2mg/kg/day, usually for 3 to 4 months

  
mineral oil OTC   10 to 50ml/cat every 12 hours mineral oil can be inhaled and causes inhalation pneumonia, so its use is questionable
minocycline Minocin; 50 and 100mg tablets, 10mg/ml suspension antibiotic 5 to 12.5mg/kg every 12 hours  
morphine generics; 15mg and 30mg tablets   1mg/kg every 4 to 6 hours  
naltrexone Trexan; 50mg tablet behavioral disorders 2.2mg/kg every 12 hours  
neomycin Biosol; 200mg/ml oral suspension hepatic encephalopathy 10 to 20mg/kg every 6 to 12 hours  
neostigmine Prostigmin; Stiglyn; 15mg tablets   2mg/kg/day  
nitroglycerin ointment Nitrol, generics; 2% ointment   4 to 12mg topically every 12 hours  
nizatidine Axid; 150 and 300mg capsules   5mg/kg every 24 hours  
omeprazole Prilosec; 20mg capsule   20mg/dog per day or 0.7mg/kg/day  
ondansetron Zofran; 4 and 8mg tablets control vomiting associated with chemotherapy 0.5 to 1mg/kg given 30 minutes prior to chemotherapy agents available as an injection, same dosage
orbifloxacin Orbax; 5.7, 22.7mg tablets antibiotic, fluoroquinolone 2.5 to 7.5mg/kg every 24 hours  
ormetroprim and sulfadimethoxine Primor; 120mg, 240mg, 600mg and 1200mg (combined mg strength) antibiotic 55mg/kg day 1, then 27.5 mg/kg every 24 hours  
oxacillin generics; 250mg and 500 capsules, 50mg/ml oral solution antibiotic 22 to 44mg/kg every 8 hours  
oxybutynin chloride Diropan; 5mg tablet helpful in some forms of incontinence in dogs 5mg/dog every 6 to 8 hours  
oxytetracycline generic; 250mg tablets antibiotic 20 to 25mg/kg every 12 hours  
pancrealipase Viokase powder pancreatic enzyme deficiency 2 tsp powder per 20lbs body weight, may be adjusted based on response  
paroxetine Paxil; 10mg, 20mg, 30mg and 40mg tablets behavioral disorders 0.5 to 1mg/kg every 24 hours  
d-penicillamine Cuprimine; 125mg capsules heavy metal poisoning antidote 10 to 15mg/kg use in cats is somewhat controversial
penicillin V Pen-Vee; 250mg and 500mg tablets antibiotic 10mg/kg every 8 hours rarely used
pentoxifylline Trental; 400mg tablets control itching associated with skin disease, also used for vasculitis 10mg/kg every 12 hours  
phenobarbital generics; 15mg, 30mg, 60mg, 100mg tablets; 4mg/ml oral elixir seizure control 2 to 8mg/kg every 12 hours initially, adjust dosage by testing serum levels  
phenoxybenz-

amine

 Dibenzyline; 10mg capsule   0.25mg/kg every 8 to 12 hours  
phenylbutazone Butazolidin; 100mg, 200mg, 400mg tablets anti-inflammatory 15 to 22mg/kg every 12 hours, maximum dosage 44mg/kg/day may cause liver toxicity, not used frequently
phenylpropanolamine Proin; 25mg/ml liquid, 50mg and 75mg tablets urinary incontinence 1.5 to 2mg/kg every 8 to 12 hours  
phenytoin Dilantin; 30mg and 100mg tablets 1) seizure control

2) anti-

arrhythmic

 1) 20 to 35mg/kg every 8 hours

2) 30mg/kg every 8 hours

 not used much for seizure control due to high dosage and dosing frequency in dogs
piperazine OTCs, solutions usually 170 or 340mg/ml for pets kills roundworms 44 to 66mg/kg repeat dosage at 2 week intervals
piroxicam Feldene; 10mg capsules pain relief, cancer therapy 0.3mg/kg every 48 hours  
potassium bromide only available through compounding pharmacies seizure control 30 to 50mg/kg every 24 hours, loading dose usually used when given alone, monitor serum levels to establish long term dosage  
potassium gluconate Tumil-K, Renacare; 2mEq tablets, 2mEq/ 1/4th tsp powder and 2mEq/1/2 teaspoon gel potassium supplement 0.5mEq/kg every 12 hours  
potassium iodide     30 to 100mg/cat per day for 10 days  
praziquantel Droncit; 23 and 34 mg tablets tapeworms dogs <6.8kg use 7.5mg/kg once; for dogs >6.8kg use 5mg/kg, once  
prazosin Minipress; 1mg, 2mg   0.5 to 1mg/cat every 8 to 12 hours  
prednisone, prednisolone generics; 1mg, 2.5mg, 5mg and 20mg tablets, 1mg/ml oral solution 1) anti-

inflammatory

2) immuno-

suppressive doses

 1) 0.5 to 1mg/kg, use once daily for 3 to 5 days, then every 48 hrs

2) 2.2 to 6.6 mg/kg/day, taper if possible

  
primidone Mylepsin, Neurosyn; 1, 2.5, 5, 10, 20, 25 and 50mg tablets seizure control 8 to 10mg/kg, adjust dosage by serum monitoring causes liver damage much more frequently than phenobarbital, similar action, so use as last resort only
procainamide Pronestyl; 250mg, 375mg, 50mg tablets/capsules   10 to 30mg/kg every 6 hours  
prochlorperazine Compazine; 5, 10 and 25mg tablets   0.1 to 0.5mg/kg  
propantheline bromide Pro-Banthine, 7.5 and 15mg tablets   0.25 to 0.5mg/kg every 6 to 8 hours `
propranolol Inderal; 10mg and 20mg tablets   0.4 to 1.0mg/kg every 8 hours  
pseudo-

ephendrine

 Sudafed; 6mg/ml syrup and 30mg tablets   0.2 to 0.4mg/kg every 12 hours  
psyllium Metamucil   1 teaspoonful per 10 to 20 lbs of body weight once or twice a day with food  
pyrantel pomoate Strongid T, Nemex; 50mg/ml suspension, other strengths in generics deworming for roundworms and hookworms 5 to 20mg/kg, repeat in 7 to 14 days higher dosages currently favored
pyridostigmine bromide Mestinon; 12mg/ml syrup, 60mg tablet myasthenia gravis

 0.5 to 3mg/kg every 8 to 12hrs  
pyrimethamine Daraprim; 25mg tablet Neospora caninum infection 1 mg/kg every 24 hours for 14 to 21 days  
ranitidine Zantac; 75mg, 150mg, 300mg tablets megacolon, constipation, GI protection 2mg/kg every 8 hours  
rifampin Rifadin; 150 and 300mg capsules   10 to 20mg/kg every 24 hours  
selegiline Anipryl; 2mg, 5mg, 10mg, 15mg, 30mg; generics available in 5mg size 1) canine cognitive dysfunction

2) Cushing's disease (hyper-

adrenocorticism)

 1) 0.5 to 1mg/kg per day

2) 1mg to 2mg/kg per day

 currently thought to be effective for Cushing's disease in only 20 to 40% of dogs
sotalol Betapace; 80mg tablets   1 to 2mg/kg every 12 hours  
spironolactone Aldactone 1) low dose for heart failure

2) diuretic dosage

 1) 0.5 to 1mg/kg every 12 to 24 hours

2) 2 to 4mg/kg/day

  
stanozolol Winstrol-V; 2mg tablet anabolic steroid 1 to 2mg/dog every 12 hours  
sucralfate Carafate (Sulcrate); 200mg/ml oral suspension, 1gm tablet ulcers 0.5 to 1gm/dog every 8 to 12 hours.  
sulfadimethoxine Albon; 125mg, 250mg, 500mg tablets, 50mg/ml suspension coccidia 55mg/kg first dose, then 27.5mg/kg every 12 hours  
sulfasalazine Azulfidine (Salazopyrin); 500mg tablet inflammatory bowel disease 10 to 30mg/kg every 12 hours  
sulfisoxazole Gantrisin; 500mg tablet, 500mg/5ml syrup antibiotic 50mg/kg every 8 hours  
tamoxifen Nolvadex mammary tumors dosage not established but used by some oncologist, follow dosing advice  
taurine generics   500mg/dog every 12 hours  
terbutaline Brethine; 2.5 and 5mg tablets   1.25 to 5mg/dog every 8 hours  
tetracycline Panmycin; 250mg capsules, 100mg/ml suspension antibiotic 15 to 25mg/kg every 8 hours  
theophylline sustained release TheoDur; 100mg, 200mg, 300mg and 450mg tablets; Slo-bid Gyrocaps; 50mg, 100mg, 200mg capsules   20mg/kg every 12 hours for TheoDur, 30mg/kg every 12 hours for Slo-bid  
thiabendazole Omnizole; 2gm/30ml suspension strongyloides deworming 50 mg/kg every 24 hours for 3 days  
thiamine Vitamin B1   10 to 100mg/dog per day  
tocainide Tonocard; 400mg and 600mg tablets   15 to 20mg/kg every 8 hours  
toluene Vermiplex; deworming 267mg/kg there are much better and safer dewormers than this
triamcinolone Vetalog; 0.5 and 1.5mg tablets; generics 1mg, 2mg, 4mg, 8mg and 16mg tablets corticosteroid 1) insert dosage: 0.11 to 0.22mg/kg/day

2) common usage: 0.5 mg/kg every 48 to 72 hrs

  
triamterene Dyrenium; 50mg, 100mg capsules   1 to 2mg/kg every 12 hours  
trimeprazine Temaril; 2.5mg/ml syrup, 2.5mg tablet   0.5mg/kg every 12 hours Temaril-P also contains prednisolone
trimethoprim-

sulfa antibiotic combinations

 Tribrissen, Ditrim; 30mg, 120mg tablets antibiotic 15mg/kg every 12 hours  
tripelennamine Pelamine; 25mg, 50mg tablets   1mg/kg every 12 hours  
tylosin Tylan; 2.2gm/tsp powder antibiotic 7 to 15mg/kg every 12 to 24 hours it is hard to get dogs to take this medication
ursodiol Actigall; 300mg capsules encourages bile flow 10 to 15mg/kg/day  
valproic acid Depakene; Depakote seizure control 25mg to 105mg/kg/day when used with phenobarbital; 60 to 200mg/kg/day as sole agent  
Vitamin A     625 to 800 units/day  
Vitamin B1 thiamine   10 to 100mg/day  
Vitamin B2 riboflavin   10mg to 20mg/dog/day  
Vitamin B12 cyanocobalamin   100 to 200ug/dog/day  
Vitamin C ascorbic acid   no more than 500mg/dog/day while there are reports of some problems when given above this dosage, many pets have been on higher dosages without problems
Vitamin E     100 to 400U/day up to 2000U per day has been advocated for degenerative myelopathy
Vitamin K1 Mephyton tablets 5mg, VetaK1 capsules 25mg rodenticide toxicity 2.5 to 5mg/kg/day for 3 to 4 weeks  
warfarin Coumadin; 1mg, 2mg, 2.5mg, 4mg, 5mg, 7.5mg and 10mg tablets thrombo-

embolism

 0.1 to 0.2mg/kg/day, adjust dosage based on clotting times  
         

This page was last edited  12/14/04

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