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Valerian Root Side Effects

Generic Name: valerian

Note: This document contains side effect information about valerian. Some of the dosage forms listed on this page may not apply to the brand name Valerian Root.

Applies to valerian: oral capsule

Get emergency medical help if you have any of these signs of an allergic reaction while taking valerian (the active ingredient contained in Valerian Root) hives; difficult breathing; swelling of your face, lips, tongue, or throat.

Although not all side effects are known, valerian is thought to be possibly safe when taken for a short period of time (4 to 8 weeks).

Stop using valerian and call your doctor at once if you have:

  • liver problems--nausea, upper stomach pain, itching, tired feeling, loss of appetite, dark urine, clay-colored stools, jaundice (yellowing of the skin or eyes).

Common side effects may include:

  • headache;

  • upset stomach;

  • thinking problems;

  • dry mouth;

  • feeling excited or uneasy;

  • strange dreams; or

  • daytime drowsiness.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

Some side effects may not be reported. You may report them to the FDA.

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