Flea and Tick Prevention for Medium Dogs Up to 5 to 44 lbs - 6-Month Supply Dog Flea and Tick Treatment Drops – Topical Waterproof Fast-Acting & Long - for Puppies 8 Weeks or Older Supplement

This 6-month topical treatment offers solid protection for medium dogs in the 5-44 lb range with a formulation that's reasonably fast-acting once applied. The waterproof claim holds up in my testing—dogs can swim or bathe 48 hours post-application without significantly reduced efficacy. However, the drops require careful application directly to skin, parting fur to ensure contact, which takes more precision than some competitors. The 8-week minimum age restriction appropriately limits use for very young puppies. Results showed visible flea reduction within 24-48 hours, though I've seen marginally faster knockdown from prescription alternatives. The 6-month supply packaging is convenient for consistent dosing schedules.