What is the primary concern when a patient is prescribed propanalol?

The primary concern when a patient is prescribed propranolol, which is a non-selective beta-blocker, relates to its interaction with other medications, particularly lidocaine. Propranolol can enhance the effects of lidocaine by increasing its plasma concentration and potential systemic effects. This is particularly significant because both medications can affect the cardiovascular system and can compound effects such as bradycardia or hypotension when used together.

While possible allergic reactions and risks of bleeding can occur with any medication, they are not the primary concerns associated with propranolol specifically. Development of hypertension is also not a primary concern, as propranolol is mainly used to manage and lower blood pressure, along with treating conditions like anxiety and certain types of heart conditions. Thus, understanding the interaction with lidocaine is crucial for ensuring patient safety and effective management of their conditions.