anesthesia  

Epidural actions of local anaesthetics in the dog

Drug

Onset (min)

Duration (min)

Lignocaine 2%

5

45-90

Mepivacaine 2%

5

60-90

Bupivacaine 0.5%

20

120-360

Ropivacaine 0.5%

15

90-420

All drugs administered at 0.2 ml/kg. Data from Torske and Dyson (2000)

 

Doses and intervals for opioids in small animals

Drug

Mouse

Rat

Guinea-pig

Rabbit

Buprenorphine

6–12 h

0.05-0.1

0.01-0.05

0.05

0.01-0.05

Butorphanol

4h

1-2

1-2

-

0.1-0.5

Meperidine (Pethidine)

2–4 h

10-20

10-20

10-20

5-10

Morphine

4h

2-5

2-5

20-5

2-5

Nalbuphine

4h

2-4

1-2

1-2

1-2

All doses are in mg/kg for subcutaneous or intramuscular injection. Data from Flecknell (1996); Cowan et al. (1997); Dobromylskyj et al. (2000)

 

 

Doses and intervals for opioids in companion animals, birds and reptiles

Drug

Dog

Cat

Bird

Reptiles

Buprenorphine

6–12 h

0.005–0.02

0.005–0.02

0.01–0.05

0.4–1

Butorphanol

2–4 h

0.2–0.6

0.2–0.8

1–4

1

Fentanyl

0.5 h (i/v)

0.001–0.005

0.02–0.2

Meperidine (Pethidine)

2–3 h

3–10

3–10

1–4

Morphine

4–8 h

0.1–1

0.1–0.2

200

0.05–4

Nalbuphine

3–4 h

0.3–0.5

0.3–0.5

Oxymorphone

2–4 h

0.05–0.2

0.05–0.4

All doses in mg/kg for subcutaneous or intramuscular injections. Data from Dobromylskyj et al. (2000); Machin (2005); Mosley (2005)

 

Table 4 Doses and intervals for opioids in farm animals

 

Drug

Sheep

Goat

Pig

Horse

Buprenorphine

0.005–0.01

0.005

0.005–0.05

0.004–0.006

6–12 h

 

 

 

 

Butorphanol

0.5

0.5

0.1–0.3

0.05–0.1

3–8 h

 

 

 

 

Meperidine

2

2

1–2

(Pethidine)

 

 

 

 

2–4 h

 

 

 

 

Morphine

0.2–0.5

0.2–0.5

0.2–1

0.1

2–4 h

 

 

 

 

All doses are in mg/kg for subcutaneous or intramuscular injection.Data from Flecknell (1996); Thurman et al. (1996); Wolfensohn and(1998);Dobromylskyj et al. (2000)

 

 

 

 

 

 

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