Human Papillomavirus Vaccine
Thimerosal Content and Other Concerns
This vaccine does not contain thimerosal (a mercury-containing preservative). Individuals who are concerned about exposure to thimerosal can be confident that this vaccine has no thimerosal (not even trace amounts).
Some people are concerned about aluminum content of vaccines; Gardasil contains 225 mcg (0.225 mg) of aluminum per dose, and Cervarix contains 0.5 mg of aluminum hydroxide per dose.
This vaccine is not made from human fetal components or animal components, as some vaccines are.
When and How to Get VaccinatedSome general considerations for when and how to take the human papillomavirus vaccine include:
- The human papillomavirus vaccine is an injection that your healthcare provider gives you.
- The vaccine is given as a series of three injections:
- First injection: at any time
- Second injection: one month (for Cervarix) or two months (for Gardasil) after the first injection
- Third injection: six months after the first injection.
- The human papillomavirus vaccine is injected into a muscle in the upper arm or upper thigh.
- For the vaccine to work properly, you have to get all three injections. It will not work as well if you do not get all three injections.
There is only one dose of the vaccine, although the two vaccines have slightly different schedules. The dose is not affected by age or weight.
(Click HPV Vaccine Dosing for more information.)