Which of the following is listed as an advantage of phonophoresis?

Which of the following is listed as an advantage of phonophoresis?

• A. Noninvasive
• B. Invasive
• C. Requires injection
• D. Limited diffusion

Answer: (A)

Phonophoresis uses ultrasound to push a topical medication through the skin, creating a noninvasive method for delivering drugs to underlying tissues. Because there’s no needle or incision, it avoids injection-related risks, reduces pain, and can be used repeatedly without hospitalization. The ultrasound temporarily increases skin permeability, helping the drug diffuse more effectively from a topical formulation into deeper layers while keeping systemic exposure more controlled. This noninvasive nature is what makes it advantageous. Invasive approaches or injections are not benefits of this technique, and diffusion is not inherently limited when the proper ultrasound settings and formulations are used.

Phonophoresis uses ultrasound to push a topical medication through the skin, creating a noninvasive method for delivering drugs to underlying tissues. Because there’s no needle or incision, it avoids injection-related risks, reduces pain, and can be used repeatedly without hospitalization. The ultrasound temporarily increases skin permeability, helping the drug diffuse more effectively from a topical formulation into deeper layers while keeping systemic exposure more controlled. This noninvasive nature is what makes it advantageous. Invasive approaches or injections are not benefits of this technique, and diffusion is not inherently limited when the proper ultrasound settings and formulations are used.