How long do Inspector drops for dogs work against ticks? - briefly
Inspector drops for dogs provide tick protection for approximately 30 days after application. Re‑application is required each month to maintain continuous efficacy.
How long do Inspector drops for dogs work against ticks? - in detail
Inspector spot‑on treatment for dogs contains fipronil and (S)-methoprene, providing a systemic and residual barrier against tick infestation. After application, the product spreads across the skin and coat, establishing a protective layer that remains active for approximately 30 days. Laboratory studies show 100 % mortality of adult ticks within 24 hours of contact, while immature stages are eliminated within 48 hours. Field trials confirm sustained efficacy throughout the month, with a gradual decline after day 28; re‑application at day 30 restores full protection.
Factors influencing the duration of action include:
- Dog size and coat condition: thicker or heavily groomed coats may reduce surface coverage, shortening the effective period by a few days.
- Water exposure: frequent bathing or swimming can wash away a portion of the product; a minimum of 48 hours after application before bathing is recommended to maximize adherence.
- Environmental tick pressure: high infestation zones may increase the likelihood of breakthrough ticks after the protective window wanes.
Typical re‑treatment schedule:
- Apply the first dose on day 0.
- Perform a second application on day 30 to maintain continuous protection.
- In regions with heavy tick activity, a third dose on day 60 may be advisable.
The product does not eradicate ticks already embedded in the skin; it prevents attachment and kills any that land on the treated surface. For optimal results, ensure the entire dorsal surface is covered during application and avoid shaving the area for at least two weeks after treatment.