Debra23 –
If you’re concerned with giving your dog too much medication, I’d avoid Trifexis. Trifexis is a heartworm preventative, broad spectrum de-wormer and an oral flea medication. Go with a formula that is for heartworm and only heartworm – all that other stuff is not necessary and if your dog doesn’t have fleas or worms why worm it and give it flea meds? My vet got me to try Trifexis last summer and one of my dogs puked everytime I gave it to her. Worms and fleas can be effectively treated naturally anyways. I personally give a preventative that does only heartworm, I space doses 6 weeks aprart rather than 4 and only administer during late spring, early fall and summer (I’m in northern new york). I wouldn’t recommend giving a lower dose than what’s recommended.
