What does "Uptake was swift" mean here?

[NewHopeR]

Context:

The US Food and Drug Administration’s (FDA) approval of Boehringer Ingelheim’s dabigatran for stroke prevention in patients with atrial fibrillation in October, 2010, was a watershed event for cardiologists. It marked an end to a 50 year hunt for a replacement for warfarin—a widely used but difficult to dose drug—and promised a new era in anticoagulant therapy.

Uptake was swift, and the drug rapidly headed for blockbuster status. But a string of safety flags, including most recently data suggesting the drug increases the risk of heart attacks, have tempered enthusiasm for the direct thrombin inhibitor.

[Nersi]

It means requests were numerous.

[NewHopeR]

It means requests were numerous.

Are you sure for this? Since your native tongue is Persian.

[5jj]

It means that people (presumably doctors) responded quickly to the news of the FDA's approval of the drug - they very quickly started ordering/prescribing it.

Definition of uptake | Collins English Dictionary meaning #4.
uptake - definition. American English definition of uptake by Macmillan Dictionary meaning #2

[Tdol]

It means requests were numerous.

Where do you get the part about requests from? To me, it means that the medicine was accepted and used quickly.

[NewHopeR]

Thank you both.

Also thanks to Nersi for joining.