I have a female mixed fox terrier, age 11, no prior health problems who suffered sudden bilateral hearing loss following a 3 day stay at a pet boarding facility.
Prior to visit the pet (Maggie) had perfect hearing.
Visit to veterinarian demonstrated no physical abnormality post otoscopic exam.
Pet presented no symptoms of auditory disease and was not introduced to any medications other than a vitamin/mineral supplement purchased week earlier distributed by GNC Pets.
Could constant barking sounds while at a pet shelter for only 3 days or perhaps a supplement given at recommended dose ( one per day) described as a premium ultra mega multivitamin plus formulation be suspect to sudden hearing loss?
Plenty of support exists for you. The MUFFIN email list is a jewel, and the Feline Diabetes Message Board (FDMB) will connect you with a whole community of people who have diabetic cats and will give you almost immediate feedback. The only thing we have all agreed on entirely is this: trust your own good sense. IF YOU THINK SOMETHING IS NOT RIGHT, TRUST YOUR SELF. A cat's wellness is broadcast by a constellation of behaviors, and the only one who knows him well enough to get the message early is you, who lives with him and cares enough to observe closely and thoughtfully.
5mg a day was too much and he was having bad side effects, extreme lethargy, he stopped eating,and drinking and his diarrhea actually got worse. Half a pill ever other day was not enough his stool was normal the first day then back to diarrhea the second. Half a pill mg a day seems to be the formula that works for him. He tolerates it well,and his stool remains normal. Mischief is much more active and healthy now,and is actually gaining weight. I am very pleased. Like I said I think it saved his life. Also the drug is very inexpensive $10 bucks a month