Recently, US Food and Drug Administration (FDA) has advised health providers not to use needle free injector devices to administer influenza vaccines, because so far no flu vaccines have been approved for administration using such devices, saying they are approved for only the measles, mumps and rubella vaccine.

The FDA is focusing on the manufacturer Pharmajet, which sells a device that can administer vaccines without using needles.

About PharmaJet Inc. and Needle-free Injection Technology:

PharmaJet's needle-free injection technology delivers drugs and vaccines to intramuscular, subcutaneous and intradermal tissue depths. PharmaJet injectors use pressure to create a fine stream of liquid that penetrates the skin, delivering doses to the desired depth, while eliminating needle-stick risk and the burden of sharps waste management.

According to ABC news, Pharmajet a Colorado based company that manufactures the high pressure injector device, has been marketing as it has proven flu fighting tool. While the device has been approved for use with some drugs, flu vaccines are out of question.

In addition to this, the FDA has no data to support the safety or effectiveness of flu vaccines delivered by jet injector. The FDA recommended that all approved vaccines be administered according to their labeling and that health providers carefully review dosing and administration labeling, as well as injector device labeling, before any immunization.

According to a recent statement, the FDA has recently received queries about the use of the jet indicator devices to administer flu vaccines. So far only one vaccine – measles, mumps and rubella (MMR) —-has been approved for administration by jet injector.

MMR combines vaccines for Measles, Mumps and Rubella into one shot. MMR has been around since 1971, although its three components were licensed separately during the 1960s. It is a live vaccine, containing measles, mumps and rubella viruses that have been “attenuated” (weakened), so that they dont cause disease. Most children who get the vaccine develop immunity to all the three diseases (over 99% for measles and 95% for mumps and rubella). Protection is believed to be life-long.