Idiopathic vestibular syndrome causes sudden, severe disorientation in older dogs that is terrifying for both dog and owner, but typically resolves within 2-4 weeks with supportive care.
Vestibular disease causes acute, intense welfare disruption. Dogs in the acute phase experience severe disorientation, inability to stand or walk, and continuous nausea — an experience analogous to extreme motion sickness. The sudden onset is frightening, and the rolling and falling behavior causes secondary injuries if the dog is not managed carefully. Anti-nausea medication (maropitant or meclizine) provides significant welfare relief by addressing the most distressing symptom. Quiet, supportive care — helping dogs eat, drink, and toilet — is the primary intervention. Rapid recovery in most cases means the welfare impact, though acute, is time-limited. Owner reassurance is critical as the signs often prompt euthanasia consideration before the favorable prognosis is known.