What is a known consequence of sudden discontinuation of Labetalol treatment?

The sudden discontinuation of Labetalol, a beta-blocker used primarily for managing high blood pressure, can lead to rebound hypertension. This phenomenon occurs because the body has adapted to the presence of the medication, which blocks the effects of certain hormones and nerve signals that raise blood pressure. When Labetalol is abruptly stopped, there can be a rapid return of these effects, causing a spike in blood pressure that is often higher than it was prior to treatment.

Rebound hypertension can lead to complications if not managed properly, such as an increased risk of stroke or heart attack. Hence, it is generally recommended to taper off the medication gradually under a healthcare provider's guidance rather than stopping it suddenly.

The other options listed do not directly relate to the effects of Labetalol withdrawal. Increased appetite, severe dehydration, and acid reflux are not commonly associated consequences of stopping this medication.