EXCESSIVE SALIVATION

Is there any way he could have ingested some sort of medication that either you or some one in the home is taking?
 
Has he ingested something outside that may have caused this?
 
I would take him to the vet to see if something is lodged in his throat which could cause this or if he has ingested something that is poison to his system.

There is no medication in his reach so we can rule that out.  He hasn't started any new supplements.  He is on Grizzly Salmon oil, shark cartilidge, leutien bilberry and sometimes get Nupro on his food but none of those are new additions.  He is on pre-made raw food twice a day right now. 
 
The only thing we can think of is that day before yesterday when my husband had him outside he let him chew on an ivy vine.  But the symptoms didn't start until yesterday afternoon.  The way I noticed is that we took a nap in the recliner and when I woke up there was a wet spot on my jeans about 3 inches by 3 inches.  I thought maybe he went to get a drink while I was asleep and his chin was wet but then 30 min later in my husbands office where there is no water bowl his chin was dripping wet.  I know he was also on my lap the night before which would have been after the ivy chewing and was not drooling then.  It was like 24 hours after the ivy chewing that I noticed the excessive salivation.
 
It seems to be much better today.  Last night and this morning I gave him chicken broth in water to get him to drink a lot to help flush his system and will continue with that until it seems to be taken care of.  He normally doesn't drink a lot of water.
 
Heather

How is he now?  Is he still salivating?  Any chance that he got ahold of a frog? 
 
Edited:  Oops I posted before I saw your second post.

My dog got like that when she got a toad one time. Any chance of that?
 
Edited: minimom beat me too it. Glad he's doing better!

did you mention the part about the ivy to the vet?

We are in the city in Chicago and its just getting warm now and we are not by any water.  I've never seen any frogs around here, not even in summer.
 
We did tell the vet about the ivy.  He said it could be stomach upset if Andy ingested something.
 
Heather

There are soooo many common garden plants that can be toxic to pets.  By "toxic", I don't necessarily mean deadly....just that they can cause reactions ranging from mild to severe.  There are a lot of different types of Ivy.  Some are listed as toxic and others are listed as non-toxic.  There are tons of good sites on the internet that list plants and their effects on pets.  I've not yet found one that was all-inclusive, so if I'm wondering about a particular plant I usually search several different sites.  If you do a google search on "poisonous plants pets" or "toxic plants pets" or "dangerous plants pets"...you will come up with lots of info.