What type of anesthetic agent is a patch?

In the context of anesthetic agents, a patch is designed to deliver medication transdermally, meaning it has a specific formulation and delivery mechanism suited for this purpose. The patch formulation allows for a continuous release of the anesthetic agent into the bloodstream through the skin, providing localized or systemic anesthesia.

Using a patch as an anesthetic agent has distinct advantages such as convenience, ease of application, and stable dosing over time. The sustained release provides prolonged pain relief without the need for repeated dosing, making it particularly useful in clinical scenarios.

Liquid, gel, and ointment forms of anesthetics are typically applied topically or used for other purposes but do not utilize the transdermal delivery system that a patch does. These alternatives may have different absorption characteristics and administration methods, leading to potentially different effects and durations of action when compared to a patch.