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Ask Dr. Michael Salkin Your Own Question
Dr. Michael Salkin
Dr. Michael Salkin, Veterinarian
Category: Dog
Satisfied Customers: 29831
Experience:  University of California at Davis graduate veterinarian with 45 years of experience
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I have a standard poodle, 10 years old. Her hair is changing

Customer Question

I have a white standard poodle, 10 years old. Her hair is changing color from behind her ears straight down her back about 6 inches wide. Her skin is find its just her hair. She has been on Atopica (meds) for about 6 months. I do not see this online as a side effect. Any Ideas
JA: I'm sorry to hear that. What is the poodle's name?
Customer: Chloe, We almost lost her to a bad blood problem but she is fine now I believe
JA: Is there anything else important you think the Veterinarian should know about Chloe?
Customer: No not really. There was a change in food when she got sick, could that have caused it? She has been on this food for about 4 months
Submitted: 11 months ago.
Category: Dog
Expert:  Dr. Michael Salkin replied 11 months ago.

You're speaking with Dr. Michael Salkin. Welcome to JustAnswer. I'm currently typing up my reply.

Expert:  Dr. Michael Salkin replied 11 months ago.

You're described melanotrichia which describes hyperpigmentation of the hair. (Melanoderma describes hyperpigmentation of the skin.) Because Chloe's melanotrichia is symmetrical, a hormonal or metabolic disorder such as hypothyroidism (important), hypercortisolism (easily ruled out if there are no other symptoms of hypercortisolism - increased thirst and appetite, mainly), and the sex hormone dermatoses (not a consideration in a spayed female) need to be considered. You're correct, oclacitinib (Apoquel) hasn't been shown to cause melanotrichia but skin disorders are possible from this drug.

I would check Chloe for hypothyroidism with a combination of two blood tests - the T4 (total blood thyroid) and fT4 (free thyroid). Please respond with further questions or concerns if you wish.

Expert:  Dr. Michael Salkin replied 11 months ago.
Hi Richard,
I'm just following up on our conversation about your pet. How is everything going?
Dr. Michael Salkin