Havrix: Uses, indications and precautions when using

Hepatitis is a disease affecting health and life in both our country and other countries around the world. The advent of vaccines has been an effective lifesaver for many people. Among the drugs to prevent hepatitis, Havrix has received many choices and concerns of users and doctors. So let's find out what Havrix does and how to use Havrix to achieve effectiveness and safety.

Hepatitis A infection can be mild with no symptoms or it can be severe leading to liver failure and death. Preventing hepatitis A virus infection with Havrix is ​​the answer to this difficult problem. Working by helping the body produce antibodies that build immunity against infection by the hepatitis A virus, Havrix is ​​a vaccine used to help prevent infection with the hepatitis A virus. liver A for humans.
Havrix for hepatitis A is made from the completely destroyed hepatitis A virus. In other words, Havrix contains no live virus, so you do not need to worry about the possibility of getting hepatitis A virus from this vaccine. However, it should be noted that Havrix does not protect against infection with other viruses such as HIV, the cause of AIDS, or hepatitis B or hepatitis C, as well as hepatitis E, the virus that causes AIDS. Remove the HPV that causes genital warts.
Havrix is ​​recommended for use by people over 12 years of age, people at high risk including people living with or spending a lot of time with people infected with hepatitis A, staff working in daycare, laboratory workers, people who have sex with men or who have sex with men, sex workers, people who inject drugs, and travelers to high-risk areas.

Proper use will help the body adapt to the vaccine and Havrix will work best, ensuring the effective prevention of hepatitis A for the vaccinated person. Therefore, patients should pay attention to the following notes when injecting Havrix:
Havrix is ​​used by injection into a muscle, it should be injected by a qualified medical professional. The specific site of Havrix injection depends on the age of the vaccinated subject. Adults and children are usually given the injection in the upper arm, and infants are usually given the injection in the upper thigh. Havrix is ​​given as two injections over a period of 6 to 18 months. Havrix dosage is usually guided based on the age status of each injector.

Besides the preventive effect of hepatitis A, using Havrix can lead to unwanted effects. Common side effects of Havrix include: pain, redness, swelling at the injection site, fever, fatigue, headache, nausea, and loss of appetite. In addition, in rare cases people have had symptoms such as fainting, dizziness, vision changes or ringing in the ears immediately after vaccination. Tell your doctor right away if after receiving Havrix you experience any serious side effects such as seizures.
Allergic reactions classified as severe to Havrix are very rare with symptoms including: itching and/or swelling of the tongue, throat, face, dizziness, rash, feeling short of breath.
These are not all possible side effects of Havrix . While taking Havrix, if you notice other side effects not listed above or if any of these side effects are more severe or persist, you should stop taking Havrix and see your doctor. Before using Havrix, tell your doctor or pharmacist your history of allergy to neomycin, formalin, latex, vaccination history, current fever, immune system problems such as HIV infection , certain cancers such as leukemia, lymphoma, cancer, or being treated with radiation.

Interactions between Havrix and other drugs when taken at the same time or for a short period of time can affect how each other works or even increase the risk of serious side effects from each drug. Therefore, before using Havrix, tell your doctor about all other medicines and products you are using.
Products that interact with Havrix increase the risk of side effects or increase the elimination of Havrix from the body, reducing the concentration of the drug leading to a decrease in the effectiveness of Havrix's hepatitis A vaccine. Havrix or its treatment with drugs that weaken the immune system including: Cyclosporine, tacrolimus, cancer chemotherapy drugs, corticosteroids such as prednisone.

Hepatitis A spreads very easily, usually through contaminated food or drinking water, sexual contact with an infected person, eating raw shellfish living in contaminated water, living conditions poor hygiene, even through blood transfusions or sharing needles with people infected with hepatitis A.
Keep vaccination records for yourself and all your children, and give them to health care professionals health when getting any vaccine to make sure it is safe and effective.
Vaccination needs to be in sufficient quantity and at the right time to be effective, so it is very important to monitor and take notes to adhere to the correct injection schedule. If you have missed a dose of Havrix, ask your doctor or pharmacist as soon as you remember.
To ensure safety and avoid the side effects of Havrix, the person taking the injection should carefully read the instructions before and follow the instructions of the doctor or pharmacist.

Reference source: webmd.com