Table 5.

Test results from a clinical field study investigating the efficacy and safety of combination product chewable tablets administered orally once a month for 11 months for the prevention of heartworm disease in the USA

Treatment group	Study day	Adult HW antigen test				Microfilaria test
		Negative		Positive		Negative		Positive
		No. of dogs	%	No. of dogs	%	No. of dogs	%	No. of dogs	%
Moxidectin/Sarolaner/Pyrantel combination product	330	246	100	0	0	246	100	0	0
Heartgard® Plus	330	117	98.3	2	1.7	118	99.2	1	0.8