This page contains brief details about the drug , it's indication, dosage & administaration, mechanism of action, related brands with strength, warnings and common side effects.

Background and Date of Approval

 The influenza vaccine belongs to the therapeutic class of Immunizing Agents.

Mechanism of Action of undefined

The influenza vaccine stimulates the body's immune system to produce an immune response against specific influenza virus strains. Once administered, the vaccine introduces inactivated or weakened forms of the virus or specific viral proteins to trigger the production of antibodies. These antibodies then recognize and bind to the influenza virus if the body is exposed to it in the future. 

Uses of undefined

The main use of the Influenza vaccine is the prevention of influenza, commonly known as the flu. It is a crucial preventive measure to reduce the risk of contracting the influenza virus and to minimize the severity of symptoms in case of infection. 

undefined Drug administaration and Dosage available

The influenza vaccine can be administered through intramuscular injection (IM). The recommended starting dosage and any necessary dose adjustments are determined based on the specific condition being treated and the patient's response to the medication. 

Warnings, Precautions and Side Effects of undefined

Warnings

Some individuals may have a severe allergic reaction to components of the Influenza vaccine. Symptoms may include difficulty breathing, rapid heartbeat, dizziness, or swelling of the face and throat. While extremely rare, there have been cases of Guillain-Barré Syndrome reported following vaccination with this vaccine.

Precautions

Immediate medical attention is necessary if any severe allergic reactions occur after taking the Influenza vaccine. Individuals with a history of GBS should consult their healthcare provider before receiving the vaccine. Individuals with severe egg allergies should consult a healthcare provider before receiving the vaccine to assess the risk of potential allergic reactions.

Side Effects

The Influenza vaccine can lead to mild and temporary side effects, including local reactions such as soreness, redness, or swelling at the injection site. Some individuals might experience systemic reactions like mild fever, fatigue, and muscle aches as the immune system responds to the vaccine. While rare, allergic reactions, such as hives, difficulty breathing, or swelling, may require immediate medical attention. 

Word Of Advice

Inform healthcare providers about any history of severe allergic reactions, especially to previous influenza vaccines or vaccine components, a history of Guillain-Barré Syndrome, or severe egg allergies. It is essential to disclose any ongoing medications or treatments. Consulting a healthcare provider before vaccination is recommended for individuals with certain neurological conditions, pregnant or breastfeeding women, or those with specific medical conditions. Additionally, considering the appropriate vaccine type based on age and the severity of current illness is important to ensure the safe administration of the vaccine.

Frequently Asked Question

References

  1. Sanofi Pasteur Europe, Electronic Medicines Compendium (EMC), [Revised on Feb 2021] [Accessed on 22nd Oct 2023], https://www.medicines.org.uk/emc/files/pil.666.pdf
  2. D.H. Dockrell, S. Sundar, B.J. Angus, R.P. Hobson, Infectious disease, Davidson’s Principles and Practice of Medicine, 22nd Edition, 2014, 293-386.

Disclaimer

The drug information on this page is not a substitute for medical advice; it is meant for educational purposes only. For further details, consult your doctor about your medical condition to know if you can receive this treatment.