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What are possible interactions when taking phenylalanine?

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Phenylalanine can cause tardive dyskinesia in people taking antipsychotic medicines.

If taken with certain antidepressants, this supplement could lead to:

Phenylalanine might also:

It may also affect how your body breaks down other drugs and supplements. And use with caution if you are taking a monoamine oxidase inhibitor (MAOI) drug and several other classes of medications; talk to your doctor or pharmacist about this.

  • Hypomania
  • Constipation
  • Insomnia
  • Higher blood pressure
  • Keep drugs for high blood pressure from working properly
  • Increase the effect of sedatives

From: Phenylalanine WebMD Medical Reference

SOURCES:

Natural Standard Professional Monograph: "Phenylalanine."

AltCareDex, "Phenylalanine."

American Academy of Dermatology: "Vitiligo."

March of Dimes: "PKU (Phenylketonuria)."

Natural Standard Bottom Line Monograph: "Phenylalanine."

University of Maryland Medical Center: "Phenylalanine."

Reviewed by Carmen Patrick Mohan on May 18, 2017

SOURCES:

Natural Standard Professional Monograph: "Phenylalanine."

AltCareDex, "Phenylalanine."

American Academy of Dermatology: "Vitiligo."

March of Dimes: "PKU (Phenylketonuria)."

Natural Standard Bottom Line Monograph: "Phenylalanine."

University of Maryland Medical Center: "Phenylalanine."

Reviewed by Carmen Patrick Mohan on May 18, 2017

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What are precautions when taking phenylalanine?

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