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It was just stomach bile. The stuff that helps your stomach digest food. He might want to go to the doctor if he gets heartburn frequently it could acid reflux. That can cause permanent damage to his esophagus. Hope he feels better soon!

When you vomit it is acidic, considering that's what your stomach is filled with. It just happened to be strong enough for him to really taste it in his mouth. If he has heartburn a lot he should consider seeing a doctor about acid reflux. I have it and my stomach is very acidic and I constantly have heartburn. A good over the counter drug for heartburn is Zantac 75 or 150, I'd recommend it to anyone.

Sounds like some acid reflux. Pepcid complete(it's chewable) worked great for me. Sadly, I had worse problems and needed prescriptions. But the pepcid complete really works very well. If it continues where he's needing something numerous times a week for a few weeks, he should see a doctor. Good luck.

Sounds like GERD (acid reflux disease) It could be dangerous. My wife just had surgery for it. Go to a heartburn clinic or a gastroenterologist. OTC medicines probably wont help much. It is a serious condition; I wouldn't ignore it

stomach acid? tell him to eat some rolaids or some tums or some sort of antacid and see if that helps