Date launch premarin first noc?

When was Premarin first launched (U.S.)?

Premarin (conjugated estrogens) was first launched in the United States in 1941.

What does “Premarin first” refer to for “NOC”?

In Canadian drug-approval language, an NOC (Notice of Compliance) is the approval notice from Health Canada for marketing. The question “premarin first noc” is usually asking when the first Canadian NOC occurred, but that specific date depends on Health Canada’s NOC history for Premarin.

If you tell me whether you mean Canada (Health Canada NOC) or U.S. (FDA approval/launch), I can narrow it to the correct launch/approval date.