What is Twinrix: Uses, Warnings & Interactions

Updated May 14, 2025  •  Published Dec 30, 2020

Twinrix overview

BRAND NAMES:

  • Twinrix

Generic Names:

  • Twinrix

Uses:

  • Prevents infection caused by hepatitis A and hepatitis B viruses.

Therapeutic Classes:

  • Vaccine

Forms:

  • Injectable

How it’s taken:

  • By injection

What is Twinrix used for?

What form(s) does Twinrix come in

  • Injectable

What are common Twinrix doses?

  • Syringe 1ML of 720-20ELU-MCG/ML

Common Twinrix prescriptions

  • Twinrix
    1ml of 720-20elu-mcg/ml syringe

  • Twinrix
    1ml of 720-20elu-mcg/ml vial

How to take Twinrix

  • Injection routeYour doctor will prescribe your exact dose and tell you how often it should be given. This medicine is given as a shot into one of your muscles.

  • Injection routeA nurse or other health provider will give you this medicine.

  • This vaccine is usually given as 3 doses. The second dose is given 1 month after the first dose. The third dose is given 6 months after the first dose. However, your doctor may suggest a different schedule.

  • Missed dose: It is important that you receive each dose at the right time. If you miss your scheduled shot, call your doctor to make another appointment as soon as possible.

  • Injection routeYour doctor will prescribe your exact dose and tell you how often it should be given. This medicine is given as a shot into one of your muscles.

  • Injection routeA nurse or other health provider will give you this medicine.

  • This vaccine is usually given as 3 doses. The second dose is given 1 month after the first dose. The third dose is given 6 months after the first dose. However, your doctor may suggest a different schedule.

  • Missed dose: It is important that you receive each dose at the right time. If you miss your scheduled shot, call your doctor to make another appointment as soon as possible.

What to do if you miss a dose of Twinrix

Twinrix contraindications

  • This vaccine is not right for everyone. You should not receive it if you had an allergic reaction to hepatitis A or hepatitis B vaccine or to neomycin or yeast.

Twinrix warnings

  • Tell your doctor if you are pregnant or breastfeeding, or if you are allergic to latex rubber. Also, tell your doctor if you have a weak immune system, or if you have been sick or had a fever recently.

  • Blistering, peeling, or red skin rash

  • Fainting, trouble seeing, numbness

Twinrix interactions

  • Some foods and medicines can affect how this vaccine works. Tell your doctor if you have recently received any treatment that weakens the immune system, such as cancer medicine, radiation treatment, or a steroid.

Twinrix side effects

Serious Side Effects

  • Allergic reaction: Itching or hives, swelling in your face or hands, swelling or tingling in your mouth or throat, chest tightness, trouble breathing

  • Blistering, peeling, or red skin rash

  • Fainting, trouble seeing, numbness

Less Serious Side Effects

  • Pain, redness, or swelling where the shot is given

  • Tiredness

  • Headache

Subscribe to our savings newsletter

Health education, drug info, wellness & more

By clicking 'Subscribe', I agree to SingleCare's Terms & Conditions.