In regards to Mertazipine, help! Is an appetite stimulant. Does it interact with Lantus Glargine, and Methimazole transdermal? Gave Micah a 1/4 tab 2 hrs ago, then food and ins, she's meowing and very pissy. Is this normal? Called to my vet, but closed, Emergency vet said keep an eye on her. Any thoughts? Will it wear off soon, 1st dose given tonight. Thanks