vomiting

I would probably just wait and not give him anything for awhile and see how he is a little later.  They sometimes just get that way and it's nothing to worry about.

Sometimes they can be off their food -- was the food digested at all? 

 Resting the gut can be a good idea. 

 Was there pesticide or fertilizer recently put on the lawn?  Could he have gotten into any medicines in the house?  (your purse, stuff in the bathroom?)

Dogs sometimes just plain have a tummy problem.  Chammomile is probably the only thing I might give -- brew some in to tea (don't throw away the wet herbs) and you can either add a tiny bit of meat juice or give it by syringe (add the wet herbs to the dog's next meal).  Often helps settle the stomach.

 Thanks for your advice!  I did just wait it out for a few hours, then I gave him some cottage cheese.  After a couple more hours, and I was sure he was going to keep that down, I gave him half of his usual dinner, just so that he wouldn't have a bile vomiting incident in the middle of the night, and he kept that down also.   The strangest part though, was the way he "mowed" down the grass, which caused more vomiting, and ultimately settled his stomach...I had heard that dogs eat grass if they have an upset stomach, but this was crazed grass eating!!!

Hmmm -- that leads me to wonder if you already have an ulcer forming.  He's been on some pretty heavy hitting drugs.

My holistic vet gave me a super recipe for what she calls "Slippy elm cocktail" that she gives to dogs she suspects have ulcers.  She's given me permission to post it and it HAS chlorophyl in it.  (it's good for stomach healing)

1 -- half a cup of boiling water.

2 -- add 1 rounded tsp. of ground slippery elm

3 -- let cool totally

4 -- add 1/8 c. + 2 tablespoons of aloe juice

5 -- add 10 drops of chlorophyll

6 -- Add 2-3 capsules (open the caps) of acidolpholus

Get 2-3 of those baby medicine syringes -- give a whole syringe-full of this mixture 1/2 hr before meals and one extra time in the middle of the day and again at bedtime if you can swing it. 

Make it up every 3-4 days (the acidolpholus will 'die' any longer than that).  It's BEST if you give it room temperature so after I give one, I take the next syrying out of the fridge to get to 'room temperature' before I give the next one.  I hate futzing with stuff like that so I generally have as many syringes as I'm going to use in a day and load them all the night before so I can take them out p.r.n. (as needed). 

Generally you can get chlorophyl at a health store.  Slippery elm you usually can get in bulk at health stores or at least you can get the capsules (and empty them).  Get a good quality liquid aloe -- tell them it's for a dog and you want the least 'bitter' one they have.  If you get a good aloe the mixture isn't at all bad tasting.

But it might help the gut a LOT and it will help mitigate the damage from the other meds.  You can also use stuff like Tagament or Zantac.  Your vet can tell you the dose.

 I think you may have mis-understood my message.  He is not on any medications at all.  He threw up then he ate grass...and it had not been fertilized or anything.  I gave him only cottage cheese and his regular dog kibble to eat several hours after the vomiting incident.  And he hasn't thrown up any more.  There is no damage from any "other meds".

I'm glad he was OK.  I'm glad you cleared up that misunderstanding, I was re-reading your post wondering where I missed the "medications", LOL!

No, I was unclear -- my thot was to examine everything you could because sometimes they can be such little "hoovers" and occasionally they can swipe something from a purse or the floor that you didn't mean for them to have -- we may assume they've not gotten into something until later when we discover something missing from purse or counter in the bathroom.