I have applied a 2 litre tube of selamectin onto my (4 y.o.) Great Dane today. This selamectin chemical is claimed to control fleas. Should it also control the TICS that are rampant in the South-central USA states (focusing on the TEXAS PANHANDLE)?
This year’s tic-season is promised to be another bumper-crop of “those suckers.”

(If this matters) I use the REVOLUTION(r) brand that his veterinarian recommends and provides.
Thanks for knowledgeable advice.