I just went through it with my 2 Y/0 Rottie that was rescued from a high kill shelter in North Carolina. It's going to depend on a few different factors, all of which your vet will have to advise you on. - you'll need to know if it's advanced or minimal (worm load), the condition he's in physically, etc...
We did the two doses 2 days apart, but Anya's worm load wasn't high and she was young and in good condition otherwise. Good luck - it's definitely not fun. -----Original Message----- From: ShaRenee <[email protected]> To: [email protected] Sent: Fri, Nov 12, 2010 11:46 am Subject: [Chihuahuas] Heartworm Treating a Chihuahua Hi there, I'm Shannon in Alabama. A few months ago, I rescued a heartworm positive chihuahua. He's 8 yrs old and I'm trying to decide how I should treat him for the heartworms. I just wonder, is he too old to have the quick kill treatment?
