I purchased this at a shop in late September. I'm selling it because I no longer need it. This is a cat medication, ideal for flea and tick control, with an effect lasting approximately 3 months, and is easy to use. - Brand: Earth Pet - Product Name: Shot-On - Purpose: Flea and tick control - Target Animals: Cats - Contents: 0.8ml - Duration of Effect: Approximately 3 months - How to Use: Easy to use - Hazardous Materials: Keep away from fire