Question 1

What is Ostarine?

Accepted Answer

Ostarine (often labeled MK-2866) is a selective androgen receptor modulator (SARM). It is not FDA-approved as a drug, and FDA has warned consumers about serious safety risks associated with SARMs and has issued warning letters to companies marketing SARM products (including products labeled “Ostarine MK-2866”) as unapproved new drugs.

Question 2

How does Ostarine work?

Accepted Answer

As a SARM, it binds androgen receptors and can produce anabolic-like effects in tissues; SARMs are discussed as mimicking some effects of anabolic steroids while being tissue-selective, but they carry significant safety risks and are not approved for dietary supplement use.

Question 3

Are there any warnings or precautions for Ostarine?

Accepted Answer

Do not use: FDA warns SARMs have been associated with serious safety concerns (including liver injury and increased risk of heart attack or stroke). Particularly unsafe for teens/young adults and during pregnancy/breastfeeding. Additional precautions may apply.

Question 4

Is Ostarine FDA approved?

Accepted Answer

FDA has taken enforcement action and warned that products marketed as SARMs (including Ostarine MK-2866) are unapproved new drugs sold illegally; not an FDA-approved drug and not a lawful dietary supplement ingredient for these marketed uses.

Question 5

Where can I buy Ostarine?

Accepted Answer

Not a legitimate OTC supplement; primarily encountered via illicit online sellers.

Ostarine

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