Branched-Chain Amino Acids

font size

How does Branched-chain Amino Acids work?

Branched-chain amino acids stimulate the building of protein in muscle and possibly reduce muscle breakdown. Branched-chain amino acids seem to prevent faulty message transmission in the brain cells of people with advanced liver disease, mania, tardive dyskinesia, and anorexia.

Are there safety concerns?

Branched-chain amino acids appear to be safe for most people when used for up to 6 months. Some side effects are known to occur, such as fatigue and loss of coordination. Branched-chain amino acids should be used cautiously before or during activities where performance depends on motor coordination, such as driving.

Do not take branched-chain amino acids if:
  • You are pregnant or breast-feeding.
  • You drink alcohol excessively.
  • You have amyotrophic lateral sclerosis (ALS, Lou Gehrig's disease). Use of branched-chain amino acids has led to lung failure and higher death rates in people with ALS.
  • You have a disorder known as branched-chain keto aciduria. Use of branched-chain amino acids have been known to cause seizures and other mental effects in people with this disorder.
  • You have diabetes.
  • You are scheduled for surgery in the next two weeks.

Therapeutic Research Faculty copyright

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.


Emotional Wellness

Get tips on therapy and treatment.

Health Resources
advertisement
advertisement
Use Pill Finder Find it Now See Interactions

Pill Identifier on RxList

  • quick, easy,
    pill identification

Find a Local Pharmacy

  • including 24 hour, pharmacies

Interaction Checker

  • Check potential drug interactions
Search the Medical Dictionary for Health Definitions & Medical Abbreviations

NIH talks about Ebola on WebMD