Thank you for the info.---I posted on BYH, but no one replied. It's not work taking me from home-----I hae to take my MIL to the hospital for something. Can't beg off as she is 81 and no one else to get her there. I will give my baby his shot as soon as I get back (no one around to borrow a needle from). He's only started acting a bit off, so I don't think it's an emergency, but I know how quickliy pigs can go downhill.
Also, we are leaving for vacation on Sat. morning----I know he'll need the pencillin for an entire week. There is someone staying at our place to care for our animals, I don 't think he would feel comfortable giving injections. I'll have to either get oral antibiotics or take my pot down to a neighbor who can keep him and give the injections.