Dear Gail, and, of course, you too, sweet Houdini,
The answer is no. And, yes, I do know how big those syringes are!
You basically have three choices:
1. Bite the bullet. Gently "grab" the fur/skin between Houdini's shoulder blades, try not to gag or tremble, aim and shoot...
2. Return those pre-filled syringes to Houdini's vet and ask for liquid Baytril (bottle comes with an eye-dropper thingy) and squirt the dose into the side of his mouth (this method also requires holding his mouth closed for a few seconds after the squirt)...
3. Return those pre-filled syringes to Houdini's vet and ask for Baytril pills and pill Houdini.
I have done all three with Gizzie. Also returned the liquid Baytril (after it was soon all over me because I was too slow on the holding her mouth closed part...) and got pills. Fingers heal...
Hope this helps... Good luck with whatever method you choose!
Love and countless may this soon be a thing of the past kind of hugs for you both,
Deb and Nikki -- and, Giz, forever dancing in my heart...
PS: If you go the pill route, coat the pill in butter first... That invaluable tip came from The Butter Goddess, dear Jerri and Opie!