Skip to main navigation Skip to main content Skip to footer For Medicare For Providers For Brokers For Employers Español For Individuals & Families: For Individuals & Families Medical Dental Other Supplemental Explore coverage through work How to Buy Health Insurance Types of Dental Insurance Open Enrollment vs. Special Enrollment See all topics Shop for Medicare plans Member Guide Find a Doctor Log in to myCigna
Home Knowledge Center Wellness Library tyrosine

tyrosine

Pronunciation: TYE roe seen

Brand: L-Tyrosine

What is the most important information I should know about tyrosine?

What is the most important information I should know about tyrosine?

Follow all directions on the product label and package. Tell each of your healthcare providers about all your medical conditions, allergies, and all medicines you use.

What is tyrosine?

What is tyrosine?

Tyrosine is an amino acid, which is a building block of protein that occurs naturally in the body. Tyrosine can also be found in certain foods such as meat, fish, eggs, dairy products, beans, nuts, oats, and wheat.

Some people have low levels of tyrosine in their bodies because of a hereditary condition called phenylketonuria (PKU). In people with PKU, the body cannot process an amino acid called phenylalanine, which the body needs to produce tyrosine.

Tyrosine is given as a supplement to increase tyrosine levels in people with PKU.

Tyrosine has been used in alternative medicine as a possibly effective aid in improving mental performance, alertness, or memory.

Tyrosine has also been used to treat depression or attention deficit disorder (ADD or ADHD). However, research has shown that tyrosine may not be effective in treating these conditions. Tyrosine also may not be be effective in improving exercise performance.

Other uses not proven with research have included dementia, high blood pressure, narcolepsy, schizophrenia, weight loss, premenstrual syndrome, Parkinson's disease, chronic fatigue syndrome, alcoholism, cocaine addiction, and other conditions.

It is not certain whether tyrosine is effective in treating any medical condition. Medicinal use of this product has not been approved by the FDA. Tyrosine should not be used in place of medication prescribed for you by your doctor.

Tyrosine is often sold as an herbal supplement. There are no regulated manufacturing standards in place for many herbal compounds and some marketed supplements have been found to be contaminated with toxic metals or other drugs. Herbal/health supplements should be purchased from a reliable source to minimize the risk of contamination.

Tyrosine may also be used for purposes not listed in this product guide.

What should I discuss with my healthcare provider before taking tyrosine?

What should I discuss with my healthcare provider before taking tyrosine?

Before using tyrosine, talk to your healthcare provider. You may not be able to use tyrosine if you have certain medical conditions, especially:

  • overactive thyroid; or
  • Graves disease.

It is not known whether tyrosine will harm an unborn baby. Do not use this product without medical advice if you are pregnant.

It is not known whether tyrosine passes into breast milk or if it could harm a nursing baby. Do not use this product without medical advice if you are breast-feeding a baby.

Do not give any herbal/health supplement to a child without medical advice.

How should I take tyrosine?

How should I take tyrosine?

When considering the use of herbal supplements, seek the advice of your doctor. You may also consider consulting a practitioner who is trained in the use of herbal/health supplements.

If you choose to use tyrosine, use it as directed on the package or as directed by your doctor, pharmacist, or other healthcare provider. Do not use more of this product than is recommended on the label.

Your dose of tyrosine will depend on the amount of protein you consume in your diet. Follow your doctor's dosing instructions very carefully.

Tyrosine is only part of a complete program of treatment that may also include a special diet. Follow the diet plan created for you by your doctor or nutrition counselor. Get familiar with the list of foods you must eat or avoid to help control your condition.

Call your doctor if the condition you are treating with tyrosine does not improve, or if it gets worse while using this product.

Store at room temperature away from moisture and heat.

What happens if I miss a dose?

What happens if I miss a dose?

Skip the missed dose if it is almost time for your next scheduled dose. Do not use extra tyrosine to make up the missed dose.

What happens if I overdose?

What happens if I overdose?

Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.

What should I avoid while taking tyrosine?

What should I avoid while taking tyrosine?

Follow your healthcare provider's instructions about any restrictions on food, beverages, or activity.

What are the possible side effects of tyrosine?

What are the possible side effects of tyrosine?

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

Although not all side effects are known, tyrosine is thought to be likely safe in most adults when taken for up to 3 months.

Common side effects may include:

  • nausea, heartburn;
  • headache;
  • joint pain; or
  • feeling tired.

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 other drugs will affect tyrosine?

What other drugs will affect tyrosine?

Do not take tyrosine without medical advice if you are using any of the following medications:

  • levodopa; or
  • thyroid replacement (Synthroid, Levothroid, and others).

This list is not complete. Other drugs may interact with tyrosine, including prescription and over-the-counter medicines, vitamins, and herbal products. Not all possible interactions are listed in this product guide.

Where can I get more information?

Where can I get more information?

Consult with a licensed healthcare professional before using any herbal/health supplement. Whether you are treated by a medical doctor or a practitioner trained in the use of natural medicines/supplements, make sure all your healthcare providers know about all of your medical conditions and treatments.

This information does not replace the advice of a doctor. Healthwise, Incorporated, disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Terms of Use. Learn how we develop our content.

Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated.

<cipublic-spinner variant="large"><span>Loading…</span></cipublic-spinner>

Page Footer

I want to...

Get an ID card File a claim View my claims and EOBs Check coverage under my plan See prescription drug list Find an in-network doctor, dentist, or facility Find a form Find 1095-B tax form information View the Cigna Glossary Contact Cigna

Audiences

Individuals and Families Medicare Employers Brokers Providers

Secure Member Sites

myCigna member portal Health Care Provider portal Cigna for Employers Client Resource Portal Cigna for Brokers

Cigna Company Information

About Cigna Company Profile Careers Newsroom Investors Suppliers Third Party Administrators International Evernorth

 Cigna. All rights reserved.

Privacy Legal Product Disclosures Cigna Company Names Customer Rights Accessibility Non-Discrimination Notice [PDF] Language Assistance [PDF] Report Fraud Sitemap

Disclaimer

Individual and family medical and dental insurance plans are insured by Cigna Health and Life Insurance Company (CHLIC), Cigna HealthCare of Arizona, Inc., Cigna HealthCare of Illinois, Inc., and Cigna HealthCare of North Carolina, Inc. Group health insurance and health benefit plans are insured or administered by CHLIC, Connecticut General Life Insurance Company (CGLIC), or their affiliates (see a listing of the legal entities  that insure or administer group HMO, dental HMO, and other products or services in your state). Accidental Injury, Critical Illness, and Hospital Care plans or insurance policies are distributed exclusively by or through operating subsidiaries of Cigna Corporation, are administered by Cigna Health and Life Insurance Company, and are insured by either (i) Cigna Health and Life Insurance Company (Bloomfield, CT); (ii) Life Insurance Company of North America (“LINA”) (Philadelphia, PA); or (iii) New York Life Group Insurance Company of NY (“NYLGICNY”) (New York, NY), formerly known as Cigna Life Insurance Company of New York. The Cigna name, logo, and other Cigna marks are owned by Cigna Intellectual Property, Inc. LINA and NYLGICNY are not affiliates of Cigna.

All insurance policies and group benefit plans contain exclusions and limitations. For availability, costs and complete details of coverage, contact a licensed agent or Cigna sales representative. This website is not intended for residents of New Mexico.

Selecting these links will take you away from Cigna.com to another website, which may be a non-Cigna website. Cigna may not control the content or links of non-Cigna websites. Details