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Engerix-B

FDA Approved: 1989

Vaccine Type(s)

Ingredients

What you can expect

These are the most commonly reported short-term reactions based on the manufacturer's official package insert.

⚠️ Limited data — rates may not fully reflect real-world experience

Injection site pain

Less common

About 1 in 10

Fatigue

Less common

About 1 in 10

Source: FDA-approved package insert

See the Full Picture

Knowing what’s common is just the start.

  • Compare reactions across brands
  • See what shows up when vaccines are given together
  • Understand what that means for you or your family