Which of the following is true regarding the use of beta-blockers like Propranolol?

Beta-blockers, including Propranolol, are known to potentially cause dizziness as a side effect. This can occur due to their action on reducing heart rate and lowering blood pressure, which may lead to decreased blood flow to the brain, particularly when transitioning from sitting to standing positions. Patients may experience this side effect more prominently, especially when they first start taking the medication or if the dosage is increased.

The other statements offer misinformation about the use of beta-blockers. For instance, discontinuing beta-blockers suddenly can lead to withdrawal symptoms and can precipitate a rebound effect that may result in elevated heart rates or increased blood pressure. While it's recommended to taper off these medications gradually under the supervision of a healthcare provider, taking beta-blockers with food is not a requirement for all formulations, though some patients may be advised to do so to enhance absorption or reduce stomach upset. Additionally, beta-blockers can affect blood glucose levels by masking the symptoms of hypoglycemia, which is critical information for patients with diabetes or those at risk of developing blood sugar issues.