Havrix: side effects, ingredients & package insert

Havrix ingredients (FDA package insert, Section 11)

Per-dose composition as stated in the prescribing information; verified 2026-07-09. Click an ingredient for every vaccine that contains it.

Source: FDA package insert. Formulations change — re-verify before clinical use.

Havrix side effects: where the data is

Reported reactions for Havrix and the other hepatitis A products are compiled on the hepatitis A vaccine page: pre-licensure trial reactogenicity, VAERS report counts, and international databases (Canada Vigilance, EudraVigilance, Lareb, VigiAccess). Those counts are spontaneous reports with no denominator — a report does not establish that the vaccine caused the event.

• Pre-licensure clinical trial data
• Post-licensure surveillance (VAERS and international)
• Documented adverse events and causality assessment
• Vaccine Injury Table (VICP) — compensable injuries

Havrix lot number lookup

Havrix vs Vaqta

All licensed hepatitis A vaccine products side by side. Differences in platform, adjuvant and route are the usual reasons one is chosen over another; efficacy and safety comparisons belong to the trial and surveillance sections of the hepatitis A vaccine page.

Schedule and age range

Licensed ages and the recommended series for hepatitis A vaccines are on the hepatitis A vaccine page; how 31 countries schedule it is on hepatitis A schedule by country. Always confirm the product-specific age range in the current package insert.

Common questions about Havrix

What are the side effects of Havrix?

Common reactions listed in the Havrix package insert are injection-site pain, redness or swelling and short-lived systemic symptoms such as fever, tiredness or irritability. Rarer events and the reported counts from VAERS and international databases are on the hepatitis A vaccine page; counts are reports, not rates, and do not prove the vaccine caused the event.

What is in Havrix?

Havrix contains Hepatitis A virus, inactivated as antigen; adjuvant: Aluminum hydroxide; it is preservative-free. Excipients: Amino acid supplement, Phosphate-buffered saline components, Polysorbate 20, Formaldehyde, Neomycin sulfate. Amounts per dose are in the table above, taken from Section 11 of the FDA package insert (verified 2026-07-09).

Where is the Havrix package insert?

The FDA-licensed prescribing information for Havrix is published by GlaxoSmithKline Biologicals and the FDA; the source used for this page is https://www.fda.gov/vaccines-blood-biologics/vaccines/havrix. Formulations change, so re-verify the current insert before clinical use.

How does Havrix compare with Vaqta?

Havrix (GlaxoSmithKline Biologicals) uses a inactivated platform with adjuvant Aluminum hydroxide, given intramuscular; Vaqta (Merck Sharp & Dohme LLC) uses inactivated with adjuvant Amorphous aluminum hydroxyphosphate sulfate. Both are licensed hepatitis A vaccines; the comparison table above lists every product.