August 27, 2016
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Mumps Skin Test Antigen

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Mumps Skin Test Antigen

Mumps Skin Test Antigen Side Effects Center

Medical Editor: John P. Cunha, DO, FACOEP

Last reviewed on RxList 6/8/2016

MSTA (Mumps Skin Test Antigen) is a suspension of killed mumps virus used when detection of a delayed-hypersensitivity (DH) reaction is desired. MSTA is not indicated for the immunization, diagnosis, or treatment of mumps virus infection, or determination of immune status to mumps virus. MSTA is available in generic form. Common side effects of MSTA include:

  • injection site reactions (such as tenderness, itching, blisters, rash, skin peeling, or abscess)
  • nausea
  • weight loss
  • headache
  • drowsiness
  • unsteadiness
  • sweating
  • a sensation of warmth, and
  • swollen lymph nodes

An injection dose of 0.1 mL of the MSTA antigen is made on the inner surface of the forearm. MSTA may interact with other drugs. Tell your doctor all medications and supplements you use and all vaccines you recently received. During pregnancy, MSTA should be given only if prescribed. It is unknown if this drug passes into breast milk. Consult your doctor before breastfeeding.

Our MSTA (Mumps Skin Test Antigen) Side Effects Drug Center provides a comprehensive view of available drug information on the potential side effects when taking this medication.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

What is Prescribing information?

The FDA package insert formatted in easy-to-find categories for health professionals and clinicians.

Mumps Skin Test Antigen FDA Prescribing Information: Side Effects
(Adverse Reactions)


Local reactions may include tenderness, pruritus, vesiculation and rash. Sloughing, necrosis, abscess formation, and/or regional lymphadenopathy may be associated with unusually large DH reactions. Adverse reactions may include nausea, anorexia, headache, unsteadiness, drowsiness, sweating, sensation of warmth and lymphadenopathy. None of these reactions were noted in the clinical study.2

Epinephrine Injection (1:1000) must be immediately available to combat unexpected anaphylactic and other allergic reactions.

Read the entire FDA prescribing information for Mumps Skin Test Antigen (Mumps Skin Test Antigen)

Report Problems to the Food and Drug Administration


You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.

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