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 |
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