Vaqta
VAQTA 50 U/1 ml is a vaccine that helps protect adults from infection caused by the hepatitis A virus by making the body produce antibodies against it.
Form
injektioneste, suspensio
Strength
50 U / 1 ml
Active Ingredient
Hepatitis A virus (CR 326F), whole virus, inactivated
Manufacturer
Merck Sharp & Dohme B.V.
How to Use
Dosage
The first dose is 1.0 ml (50 U) and provides protection within 2-4 weeks; a second booster dose of 1.0 ml (50 U) is given 6-18 months after the first.
Method
A doctor or nurse usually gives the vaccine as an injection into the muscle of your upper arm; if you have a bleeding risk, it may be given under the skin, but never into a blood vessel.
Important
This vaccine is given in two doses and is not taken daily.
Possible Side Effects
COMMON
- •Injection site tenderness, pain, warmth, swelling, redness
- •Headache
- •Arm pain (in the injected arm)
- •Weakness or tiredness
- •Fever (38.3 °C or higher)
- •Bruising at the injection site
- •Sore throat
- •Upper respiratory tract infection
- •Swollen lymph nodes
- •Dizziness
- •Tingling or abnormal skin sensations
- •Earache
- •Hot flashes
- •Runny or stuffy nose and airways
- •Cough
- •Nausea
- •Diarrhea
- •Excessive gas in stomach and intestines
- •Vomiting
- •Hives
- •Itching
- •Skin redness
- •Muscle pain
- •Stiffness
- •Shoulder pain
- •Musculoskeletal pain (pain in muscles, ligaments, tendons, and bones)
- •Back pain
- •Joint pain
- •Leg pain
- •Neck pain
- •Muscle weakness
- •Tightness at injection site
- •Chills
- •Abdominal pain
- •General discomfort
- •Hardening at injection site
- •Numbness
- •Cold sensation
- •Flu-like symptoms
RARE
- •Bronchitis
- •Stomach and intestinal inflammation (gastroenteritis)
- •Loss of appetite
- •Lack of energy
- •Sleep difficulties
- •Drowsiness
- •Migraine
- •Tremors
- •Itchy eyes
- •Light sensitivity (photophobia)
- •Watery eyes
- •Vertigo (spinning dizziness)
- •Throat swelling
- •Sinus problems (sinusitis)
- •Dry mouth
- •Mouth sores
- •Night sweats
- •Rash
- •Skin disorders
- •Muscle cramps
- •Elbow pain
- •Hip pain
- •Jaw pain
- •Muscle spasms (twitches)
- •Menstrual disorders
- •Warmth at injection site (localized)
- •Lump (≤ 2.5 cm) at injection site
- •Abdominal swelling
- •Chest pain
- •Flank pain
- •Irritation
- •Guillain-Barré syndrome (muscle weakness, abnormal sensations, tingling in arms, legs, and upper body)
- •Thrombocytopenia (decreased platelet count, increasing risk of bleeding and bruising)
Important Warnings
- Do not use if you are allergic to any of the vaccine's ingredients, neomycin, or formaldehyde.
- Do not use if you have a severe infection with a fever.
- Tell your doctor about any past allergic reactions to vaccines.
- The vaccine may contain traces of neomycin and formaldehyde.
- Inform your doctor if you have bleeding problems.
Show 4 more warnings
- Inform your doctor if you have a weakened immune system.
- The vial stopper contains latex, which may cause allergic reactions.
- Not all vaccinated people necessarily get full protection.
- If you experience severe allergic reactions after vaccination, such as hives, breathing difficulties, facial swelling, dizziness, or collapse, seek immediate medical attention after leaving the vaccination site.