
Paws Off Xylitol; It's Dangerous for Dogs
This sugar substitute, found in some human foods and dental products, can be poisonous to your dog.



Drug
Species
Timeuntil maximal dilation (h)
Duration of action (h)
Extent of dilation
1%
tropicamide
Dog
0.5
12
Maximal
Cat
0.75
8– 9
Maximal
Horse
5
12
Maximal
1%
atropine
Dog
1
96–120
Maximal
Cat
1
60
Maximal
Horse
10–48
132
Maximal
2% homatropine
Dog
0.75
48
Moderate
Cat
0.75
7
Moderate
Horse
3
8
Moderate
1%
cyclopentolate
Dog
0.75
60
Maximal
Cat
0.5
66
Maximal
Horse
12
96
Maximal
0.25%
scopolamine
Dog
0.75
96–120
Maximal
Cat
N/Aa
N/A
N/A
Horse
4
108
Maximal
10%
phenylephrine
Dog
2
12–18
Maximal
Cat
–b
–
Horse
–
–