Thymus extract
Thymus extract

Background

The human thymus gland is responsible for making important immune cells, such as T-cells. Thymus extract comes from the thymus glands of cows.

Thymus extract might help increase immune function. But the quality and potency of thymus extract products can vary greatly.

People use thymus extract for a weakened and enlarged heart (dilated cardiomyopathy) and infections of the airways. It is also used for asthma, food allergies, hay fever, cold sores, and many other conditions, but there is no good scientific evidence to support most of these uses.

Since thymus extract products come from cows, they are at risk for contamination with diseases. This has raised concerns about whether thymus extract can cause infections in humans, but there are no reports of this happening.
When taken by mouth: Thymus extract is possibly safe when used appropriately. It seems to be well-tolerated. Because thymus extract comes from animals, there is concern about contamination with diseases. But so far, there are no reports of infections in humans due to use of contaminated thymus extract.

Special Precautions & Warnings:

Pregnancy and breast-feeding: There isn't enough reliable information to know if thymus extract is safe to use when pregnant or breast-feeding. Stay on the safe side and avoid use.

Weakened immune system: People who have a weakened immune system or people who are taking drugs to weaken their immune system have a higher risk of infection. These people should avoid thymus extract products unless these products are certified germ-free.

Effectiveness

NatMed Pro rates effectiveness based on scientific evidence according to the following scale: Effective, Likely Effective, Possibly Effective, Possibly Ineffective, Likely Ineffective, Ineffective, and Insufficient Evidence to Rate.
Likely effective Effectiveness definitions
Possibly effective Effectiveness definitions
  • Weakened and enlarged heart (dilated cardiomyopathy). Taking calf thymus extract along with usual therapy may improve heart function, some symptoms, and the ability to exercise in some people with dilated cardiomyopathy and reduced heart function.
  • Infection of the airways. Taking thymus extract by mouth might help to reduce the number of infections or coughing attacks in people who get a lot of airway infections.
There is interest in using thymus extract for a number of other purposes, but there isn't enough reliable information to say whether it might be helpful.
Likely ineffective Effectiveness definitions
Possibly ineffective Effectiveness definitions
Insufficient evidence Effectiveness definitions

Dosing & administration

Calf thymus extract has most often been used by adults in doses of 80-120 mg by mouth daily for up to 4 months. Similar doses have been used in children of at least 7 months of age. Speak with a healthcare provider to find out what type of product and dose might be best for a specific condition.

Interactions with pharmaceuticals

Medications that decrease the immune system (Immunosuppressants)

Interaction Rating=Moderate Be cautious with this combination.

Thymus extract is made from animals. There is some concern that products made from animals might contain harmful diseases and cause infections. Taking medications that decrease the immune system might increase your chances of getting sick from taking thymus extract. Do not take thymus extract unless these products are certified germ-free.

Interactions with herbs & supplements

There are no known interactions with herbs and supplements.

Interactions with foods

There are no known interactions with foods.
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This monograph was last reviewed on 18/11/2024 11:00:00 and last updated on 09/10/2020 02:36:37. Monographs are reviewed and/or updated multiple times per month and at least once per year.
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