They proposed that using the slow kill method would produce a super-strain of drug - resistant heartworms. (2ndchance.info)
Due to him being so young and energetic we feel it is best for him to go through the slow kill method otherwise he would have to be on crate rest for 4 to 6 weeks which is torture for a young dog. (texassweetiesdogrescue.org)
Because of her age, we are treating her with the slow kill method. (theolddoghouse.org)