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Bring records and itinerary
Bring every available vaccine record, prior hepatitis testing, the destination, departure date, trip length, and reason for the vaccine.
Twinrix Hepatitis A and B vaccine in NYC
Review whether the combined adult hepatitis A and B vaccine fits your travel, work, risk, and prior-dose history. Bring records and departure dates so the clinician can select the right schedule.
Twinrix hepatitis A and B vaccine
Twinrix has a standard three-dose schedule and an FDA-labeled accelerated four-dose schedule. The clinician chooses the schedule; a rushed trip does not make every dose plan interchangeable.
What the visit can cover
The visit begins with the clinical question and the records that can change the next step.
Standard series
CDC notes a three-dose Twinrix series at 0, 1, and 6 months for adults when the combined vaccine is selected.
Accelerated series
The FDA label includes doses on day 0, day 7, and days 21 to 30, followed by a booster at month 12.
Prior doses matter
Bring records for Hepatitis A, Hepatitis B, or Twinrix so the clinician can avoid unnecessary repetition and complete the appropriate series.
Travel timing is broader
A travel visit should also consider destination, departure date, trip length, activities, medical history, and other recommended vaccines or medicines.
How care works
Review eligibility
The clinician checks age, prior doses, allergies, current illness, pregnancy, immune status, and whether separate Hepatitis A or B products would fit better.
Choose the schedule
Use the standard or accelerated FDA-labeled schedule based on timing, prior doses, and clinical judgment. A later booster remains part of the accelerated series.
Confirm product and clinic
The vaccine lane confirms current product availability and the clinic before the visit. The page does not use the general 11-clinic roster as a stock list.
Record every dose
Keep the product, lot, date, and next target dose with the medical record and personal vaccine record.
When Twinrix fits better than separate vaccines
Twinrix combines adult Hepatitis A and Hepatitis B vaccination. Separate products may fit better when a patient needs only one vaccine, has already started another series, or cannot use the combined product.
A travel visit also considers the destination, departure date, activities, medical history, and vaccines beyond hepatitis. Bring the itinerary and dose records so the clinician can address the full trip without repeating valid doses.
Prior infection, immunity, occupational risk, pregnancy, immune status, and previous doses can change the decision. The clinician reviews these details before vaccination and uses current CDC guidance and the product label.
Bring the exact prior-dose dates
Tell the clinician about a severe allergic reaction after a prior dose or to a vaccine component, current moderate or severe illness, pregnancy, immune conditions, and prior hepatitis results. Emergency symptoms after vaccination need emergency care.
Confirm Twinrix before the appointment
Book through Nao Medical's vaccine service, then confirm current Twinrix supply and the clinic before traveling. Do not assume inventory at every location.
Clinic confirmation
Confirm the right Nao Medical clinic
The care team confirms the visit type and an eligible clinic before any product, procedure, or treatment-specific appointment.
Visit preparation
Bring the complete vaccine record
Dose dates, product names, prior reactions, current medicines, and a travel itinerary when relevant help the clinician select the right next dose.
Related care
Choose the related care that matches the question you want the clinician to address.
Hepatitis B vaccine
Review Hepatitis B-only vaccination, series timing, and related testing questions.
Adult vaccine checklist
Review missing routine adult vaccines and catch-up needs across the medical record.
Current official medical sources
Sources from CDC and DailyMed were checked on August 1, 2026.
Centers for Disease Control and Prevention
Adult Immunization Schedule Notes
Current adult zoster, hepatitis A, hepatitis B, and combined HepA-HepB schedule notes.
Read the official sourceNational Library of Medicine DailyMed
Twinrix Current Prescribing Information
Adult indication, standard series, accelerated series, contraindications, and administration.
Read the official sourceFrequently asked questions
Twinrix is a combined vaccine for active immunization against disease caused by hepatitis A virus and infection caused by hepatitis B virus in adults 18 and older.
CDC's adult schedule notes list a three-dose series at 0, 1, and 6 months. The clinician confirms minimum intervals and how prior valid doses count.
Yes. The current label includes doses on day 0, day 7, and days 21 to 30, followed by a booster at month 12. The booster is part of the accelerated schedule.
Possibly, but the clinician needs the product and date for each prior dose. The plan depends on which series was started, valid intervals, and which protection is still needed.
No. Travel is one reason an adult may need Hepatitis A and B protection. Work, medical risk, exposure risk, and catch-up vaccination can also matter.
No. Vaccination and testing answer different questions. A clinician may recommend testing based on prior infection, exposure, pregnancy, medical conditions, occupational risk, or uncertain records.
Do not assume all-clinic stock. Book a vaccine visit or call first so the care team can confirm the product, clinic, and timing before the visit.
Start with the right evaluation
Twinrix has a standard three-dose schedule and an FDA-labeled accelerated four-dose schedule. The clinician chooses the schedule; a rushed trip does not make every dose plan interchangeable.
Medical content checked against the sources above on August 1, 2026.
Health information notice
General information only. This page is not medical advice and does not replace diagnosis, treatment, or guidance from a licensed clinician.
Content was updated August 1, 2026 from the sources cited on this page. Medical guidance, prescribing information, medication availability, and insurance rules can change. A licensed clinician must confirm current information and determine each patient's eligibility, testing, treatment, administration setting, and follow-up. Call 911 for a medical emergency. Contact Nao Medical with a question or correction.