Antihistamine Therapy in the Dog

                                 Dosage by Body Weight

Generic Trade Names Forms 1-5 kg 5-10 kg 10-15 kg 15-25 kg over 25 kg Interval
Hydroxyzine Atarax 10mg capsule
25mg capsule
50mg capsule
1 cap
.
.
.
1 cap
.
.
.
1 cap
.
.
2 cap
.
.
3 cap
.
.
3x daily
Clemastine Tavist 1mg tablet . 1/2 tab 1/2-1tab 1-1&1/2 1&1/2-2 2x daily
Chlorpheniramine Chlortripolon 0.5 mg/ml O/L
60 mg tablet
1/2-1 tsp
.
.
1 tab
.
2 tab
.
2 &1/2 tab
.
3 tab
.
2-3daily
Terfanadine Seldane 6 mg/ml O/L
60 mg tablet
1/2-1 tsp
.
.
1/2 tab
.
1 tab
.
2 tab
.
3 tab
.
2x daily
Diphenhydramine Benadryl 2.5mg/ml O/L
25 mg capsule
1 tsp
.
.
1 cap
.
1 cap
.
2 cap
.
2 cap
.
3x daily
Trimeprazine
tartrate
Panectyl 2.5mg tablet
5mg tablet
10mg tablet
1/2 tab
.
.
1 tab
.
.
.
1-2 tab
.
.
.
1-2 tab
.
.
2 tab
.
.
2-3xdaily
Brompheniramine Dimetane 0.4mg/ml O/L
4 mg tablet
1 tsp
.
.
1 tab
.
2 tab
.
2 &1/2tab
.
3 tab
.
2-3xdaily
Astemizole Hismanal 2mg/ml O/L
10mg tablet
1/2-1tsp
.
.
1/4-1/2tab
.
1/2-1 tab
.
1-2 tab
.
1-2 tab
.
1-2xdaily
Never home prescribe anything for your pet ....
Print this chart out and take it to your vet and follow his recommendations!
Queenie uses atarax which is available by prescription only!

Note there is 2.2 pounds in 1 kg
Body weight conversion
1-5 kg equals 2.2 to 11 pounds
5 - 10 kg equals 11 to 22 pounds
10 - 15 kg equals 22 to 33 pounds
15 - 25 kg equals 33 to 55 pounds
over 25 kg equals over 55 pounds