My dog ate a honey lemon Halls cough drop. Is it dangerous for him?

I'm sorry that Yeezy ate cough drops! In looking up the ingredients for this product, I see it contains menthol 9.1 mg eucalyptus oil, beta carotene, flavors, glucose syrup, honey, soy lecithin, sucralose, sucrose, and water. These ingredients may cause GI upset, but the biggest concern I had about the cough drops were if they had xylitol in them. That's because xylitol is extremely toxic to dogs, and if the cough drops had them, Yeezy would need to see an emergency vet right away. Because these do not have them, he should be ok, but you may see some stomach upset in the form of vomiting and diarrhea. Should you see that, withhold food for 12-24 hours, then feed a bland diet of boiled white meat chicken (no bones) and white rice in small amounts several times a day for a couple of days. Then slowly add back in his normal diet. Yeezy should be just fine, I hope this helps :-)