- What is Gardasil Vaccine (HPV), and how does it work (mechanism of action)?
- What brand names are available for Gardasil Vaccine (HPV)?
- Is Gardasil Vaccine (HPV) available as a generic drug?
- Do I need a prescription for Gardasil Vaccine (HPV)?
- What are the side effects of Gardasil Vaccine (HPV)?
- What is the dosage for Gardasil Vaccine (HPV)?
- Which drugs or supplements interact with Gardasil Vaccine (HPV)?
- Is Gardasil Vaccine (HPV) safe to take if I'm pregnant or breastfeeding?
- What else should I know about Gardasil Vaccine (HPV)?
What is Gardasil Vaccine (HPV), and how does it work (mechanism of action)?
Gardasil is a human papillomavirus (HPV) vaccine. Gardasil is a sterile preparation for intramuscular injection and contains purified inactive proteins from HPV types 6, 11, 16, and 18. The proteins in Gardasil are structural, virus-like proteins (VLP) that resemble the HPV virus. The proteins can activate the immune system but cannot give rise to replicating virus. Viral proteins used in Gardasil are manufactured in yeast cells (S. cerevisiae) using recombinant technology. Once released from yeast cells, the VLPs are purified, combined with a catalyst (amorphous aluminum hydroxyphosphate sulfate) and a purification buffer. Human papillomavirus causes cervical cancer, cervical adenocarcinoma, vaginal cancer, genital warts, and anal cancer. Gardasil works by stimulating the immune system to attack HPV types 6, 11, 16, and 18. Once Gardasil is administered, the body's immune system recognizes the viral proteins in Gardasil as foreign, and develops antibodies against them, thus providing immunity from future infections. In the event of HPV exposure following vaccination, the body will already be primed to fight the infection. HPV types 6, 11, 16, and 18 are commonly associated with HPV infections. HPV 16 and 18 cause 70% of cervical cancer and HPV 6, 11, 16 and 18 cause approximately 90% of genital warts. The FDA approved Gardasil in June 2007.
What are the side effects of Gardasil Vaccine (HPV)?
The most common side effects of Gardasil are:
- mild or moderate pain,
- itching, and
- redness at the injection site.
Other important side effects include:
People allergic to any component in Gardasil should not use Gardasil.
Quick GuideSTD Diagnosis, Images, Symptoms, Treatment
What is the dosage for Gardasil Vaccine (HPV)?
Gardasil 0.5 ml is injected intramuscularly as three separate doses. The first dose is administered at the patient's convenience, the second dose two months after the first dose, and the third dose six months after the first dose.
Which drugs or supplements interact with Gardasil Vaccine (HPV)?
Gardasil may be administered concomitantly (at different sites) with hepatitis B vaccine, Menactra (Meningococcal Polysaccharide Diphtheria Toxoid Conjugate Vaccine), and Adacel (Tetanus Toxoid, Reduced Diphtheria Toxoid and Acellular Pertussis Vaccine Adsorbed). The use of immunosuppressive drugs reduces the efficacy of Gardasil. Hormonal contraceptives do not interact with Gardasil.
Is Gardasil Vaccine (HPV) safe to take if I'm pregnant or breastfeeding?
Gardasil has not been adequately evaluated in pregnant women. It should only be used in pregnant women if it is clearly needed.
It is not known whether Gardasil or the antibodies induced by Gardasil are excreted in breast milk.
What else should I know about Gardasil Vaccine (HPV)?
What preparations of Gardasil Vaccine (HPV) are available?
Injection: 0.5 ml single-dose vial and pre-filled syringe
How should I keep Gardasil Vaccine (HPV) stored?
Gardasil should be stored refrigerated at 2 C to 8 C (36 F to 46 F) and should be protected from light and not frozen.
Reference: Gardasil Prescribing Information
Gardasil HPV Vaccine (Recombinant Human Papillomavirus Quadrivalent Vaccine) is a vaccine synthesized using recombinant technology. Gardasil is a single dose injection. Gardasil is for the prevention of HPV types 6, 11, 16, and 18 infections in girls and women aged 9 to 26 years. Gardasil also approved for preventing genital warts caused by HPV types 6 and 11 in males aged 9 to 26 years. Gardasil protects against cervical cancer, abnormal or precancerous cervical, vaginal, or vulvar lesions, and genital warts. Side effects of Gardasil include fever, vomiting, nausea, fainting, dizziness, pain, swelling, itching, or redness at the site of injection.
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