I was looking for Propylene Glycol too. I can't get it in CVS or Brooks pharmacys. I just found it here
http://revivalanimal.com/product.asp?pn=18-821&ss=propylene%20glycol
I know you can get it at Jeffers but I think you have to get a whole gallon.
Thanks - I had checked with the pharmacys last week and was told that they did not have it but they could order it...just as you said - I ordered it from Revival as it will be delivered quickly and is inexpensive. I have the wormer .......lost the recipe & propylene glycol .it's here someplace LOL! Thanks again for your help. I am all set now.