Does Thyroxine Cause Hair Loss In Dogs?

Does Thyroxine Cause Hair Loss In Dogs? Hypothyroid dogs occasionally develop severe shedding and flaking during the first 2 to 3 months of L-thyroxine treatment. During this time, the old telogen hairs are all being shed at the same time. What are the side effects of thyroxine in dogs? Side Effects of Thyroxine Use If