What is Phonophoresis?

Phonophoresis is the use of ultrasound to enhance the delivery of topically applied drugs. Effectively, medicines contained within or under the ultrasound gel are pushed by the sound waves of the ultrasound and driven deep below the skin. Phonophoretically administered medications can penetrate the body to a much deeper level than those massaged by hand over the surface of the skin.

Only some medications can be delivered phonophoretically. The process is dependant on many, many factors. For example, the type of drug and molecule size are critical. The drug molecule has to be just the right size to be picked up by the ultrasound waves and the right size to pass through the body tissue. As well, the medicinal molecule can't react with the ultrasound gel. It must also be able to survive the thermal and vibrational effects of the ultrasound. The delivery of medications via ultrasound is truly a science unto its own.

The duration of the treatment and the need to specifically adhere to a specific dose size is also a large consideration. Obviously, the longer ultrasound is used over a topical phonophoretic drug, the more the medication is delivered and the deeper it goes. Drugs that require precise dosing, like insulin for example, cannot be controlled accurately enough to be delivered via Phonophoresis. Many natural analgesics and anti-inflammatory drugs though are excellent candidates for phonophoretic application.

One of the greatest benefits to delivering medications via phonophoresis is that the medication can be delivered locally to a desired area. Oral pain killers and anti-inflammatory drugs are introduced to the entire body in equal amounts and end up drugging the entire body - the brain, the heart, the lungs even if they might not need the drug. With phonophoresis, the part of the body that receives the medication is the part of the body that needs it.

Where is Phonophoresis Typically Used?

Phonophoresis is most commonly used by Equine Therapists in the treatment of localized physical injuries. As a very cutting edge technology, phonophoresis is currently being studied for the use of a vast array of medications but the only government approved and specifically designed phonophoretic product available today is Ultrasound.

Articles on Phonophoresis

Conditions Treated With Phonophoresis:

• post-injury conditions (dislocations, distortions of joints, inflammation of muscles, tendons, etc)
• pain in rheumatic diseases
• Myositis
• Monday Morning Sickness
• Equine herpesvirus myeloencephalopathy, hyperkalemic periodic paralysis and equine protozoal myeloencephalitis
• Secondary Compensatory Lameness
• Sprains and Strains in muscles or joints
• Ligament Strains
• Post - Exercise Recovery (when the workout goes a bit too far)
• Rheumatoid Arthritis
• Tendonitis (acute or chronic)

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