Can i get my 13 and 7 yrs old dogs a flea pill without bring them in i have been giving them this pill for 7 yrs a friend of mine would get them for me but i live on ssi and cant afford a vet bill for the 2 dogs i only give it to them during the summer months they are miserable can you please help me with this they have no problem with the pill comfortis is what i give them thanks and have a wonderful day