5-hydroxytryptophan Side Effects

Applies to 5-hydroxytryptophan: oral capsule, oral tablet, oral tablet disintegrating, oral tablet extended release.

Get emergency medical help if you have signs of an allergic reaction: hives, difficult breathing, swelling of your face, lips, tongue, or throat.

Seek medical attention right away if you have symptoms of serotonin syndrome, such as: agitation, hallucinations, fever, sweating, shivering, fast heart rate, muscle stiffness, twitching, loss of coordination, nausea, vomiting, or diarrhea.

Stop using 5-hydroxytryptophan and call your healthcare provider at once if you have:

• slow heart rate, feeling like you might pass out;

• skin rash, bruising; or

• racing thoughts, increased energy, decreased need for sleep, risk-taking behavior, being agitated or talkative.

Common side effects may include:

• drowsiness, sleep problems (insomnia);

• headache, dizziness, weakness;

• altered sense of taste, appetite or weight change;

• muscle problems;

• severe vomiting, stomach pain, heartburn;

• diarrhea, constipation; or

• sexual problems.

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

See also:

Further information

5-hydroxytryptophan side effects can vary depending on the individual. Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

Note: Medication side effects may be underreported. If you are experiencing side effects that are not listed, submit a report to the FDA by following this guide.

Medical Disclaimer