You dial the dog's weight, then put the syringe between the dog's gums and lip. The gel is absorbed by the dog's tissue lining in its cheek. It blocks norepinephrine, a brain chemical that increases anxiety, within 30 to 60 minutes. It works for two to three hours, enough time to keep them calm during a fireworks show or a thunderstorm, the AP reported.
The cost is about $30 and has two doses for a large, 80-to 100-pound dog or 4 doses for a 40-pound dog.
For more information on Sileo, including warnings, click here.