Home > How does GARDASIL®9 work?

You get the GARDASIL®9 vaccine by a shot, usually in your arm. It’s given in 3 separate doses. All 3 doses should be given within a 1-year period. For girls and boys aged 9 to 14, it may be given in 2 separate doses. Talk to your doctor for more information.

Your immune system makes antibodies against the 9 HPV types in the vaccine. If you’re exposed to one of these types, the antibodies help defend against developing an infection and related diseases. However, GARDASIL®9 may not fully protect everyone who gets it.

Dose 1

1st dose

You and your healthcare provider choose a date

Dose 2

2nd dose

2 months after 1st dose (not earlier than 1 month after the 1st dose)

For girls and boys aged 9 to 14, between 5 and 13 months after 1st dose

Dose 3

3rd dose

6 months after 1st dose (not earlier than 3 months after the 2nd dose).

For girls and boys aged 9 to 14, if the 2nd dose is given earlier than 5 months after the 1st dose, a 3rd dose should always be given

Getting the first dose of GARDASIL®9 is an important step in helping to protect yourself against 9 types of HPV and the diseases associated with them, such as cervical cancer, vulvar cancer, vaginal cancer, anal cancer and genital warts. Now it’s time to start thinking about the other 2 doses.

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