The Claim

Rapamycin (sirolimus) received US Food and Drug Administration approval in 1999 for use as an immunosuppressant medication in organ transplantation, specifically in clinical scenarios where avoidance of calcineurin inhibitors is indicated, such as in transplant recipients with skin cancer or other special circumstances.

Source: A treasure from a barren island: the discovery of rapamycin

What the research says

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Description
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In plain English

A drug called Rapamycin got approved by the US government in 1999 to help prevent organ rejection in transplant patients, especially when doctors want to avoid using another type of anti-rejection medicine.

See the scientific wording

Rapamycin was approved by the US Food and Drug Administration in 1999 as an immunosuppressant for use in transplantation, particularly in situations where calcineurin inhibitor avoidance is desirable such as in skin cancer or other special circumstances.

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