The best way to prevent the flu is by getting vaccinated each year with a flu shot.

What is the flu?

Influenza (flu) is a contagious respiratory illness caused by influenza viruses. The flu can cause mild to severe illness and in extreme cases can lead to death. Symptoms of the flu include fever, chills, cough, sore throat, runny or stuffy nose, muscle or body aches, headaches, and fatigue.

Who should get the flu shot?

The CDC recommends everyone ages six months and older get a flu shot every flu season. Generally, it’s recommended that anyone who wants to reduce their chances of getting the flu should be vaccinated.

When should I get the flu shot?

It’s best to get your flu shot as early as you can once the vaccine becomes available for the season. The early you get it, the more time your body has to build immunity!

What are the common side effects of the flu shot?

The viruses in the flu shot are inactivated, so you can’t get the flu from a flu shot. Some minor side effects that could occur are soreness where the shot was given, low-grade fever, and aches. 

PharmaJet Needle-Free Flu Shots

We’re happy to offer a safe and easy no-needle flu shot. It eliminates the fear and anxiety associated with getting injected and only takes about 1/10 of a second to administer!

How does the PharmaJet “needle-free” Injector work?

The spring-powered injector delivers the vaccine by means of a narrow, precise fluid stream, which penetrates the skin in about 1/10 of a second and gets the vaccine where it needs to be. No external power source is required.

How is getting a “needle-free” vaccination different from a needle?

The PharmaJet Needle-free Injector is fast and safe. Because it does not use any needles, it eliminates the possibility of needle stick injuries. The design of the syringe prevents any possibility of re-use and reduces the possibility of cross-contamination. The PharmaJet Needle-free Injector also provides individuals an alternative to receiving a flu vaccination in a way that reduces anxiety associated with needles.

What does the “needle-free” injection feel like?

Not unlike traditional injections, individuals will respond differently to the needle-free injection. Some feel nothing, while others have reported feeling the pressure of the injection or a snap like a rubber band when the injection is administered.

Is vaccine delivery with “needle-free” as effective as getting it with a needle?

Yes! According to the Advisory Committee on Immunization Practices (ACIP), “Immune responses generated by jet injectors…are usually equivalent to, and occasionally greater than, immune responses induced by needle injections”. (1)

Additionally, a clinical study demonstrated that the delivery of a flu vaccine with the PharmaJet Needle-free Injector compared favorably to the traditional needle and syringe delivery. (2)

1. ACIP/MMWR 28 January 2011; 60(No.RR-2). Available at:
2. Needle-free jet injection for the administration of influenza vaccine: a randomized non-inferiority trial, The Lancet, Volume 384, NO. 9944, p 674-681 August, 23, 2014;

Are there any restrictions on the use of the PharmaJet Needle-free Injection System for patients taking certain medications?

No. However, patients receiving anticoagulants or persons with hemophilia or other coagulation disorders may have more post-injection bleeding and/or bruising. Consult your physician before having any injection.

What if there is bleeding after a “needle-free” injection?

Similar to a needle, following the PharmaJet injection, a drop of blood may appear. This can be minimized by immediately applying pressure to the injection site for approximately 60 seconds with a cotton ball or gauze. An adhesive bandage can be applied if needed.

Will there be any side effects after receiving a flu shot with the PharmaJet “needle-free” Injector?

Vaccines are capable of causing side effects regardless of the method of delivery, needle or needle-free. (1)

In a clinical study, the PharmaJet Needle-free injections had slightly higher local reactions e.g. soreness and bruising, than needle and syringe, but these were mild to moderate in intensity, well-tolerated and mostly resolved within three days. This did not impact the patient’s choice for needle-free as evidenced by 93% indicating they would choose to receive a needle-free flu shot again (2) Check the vaccine labeling for a description of possible local reactions.


2. PharmaJet, Inc. (2014) 61-10201 Post Market Surveillance – internal company report, February 2015.