Aztreonam approval year 1986?

What year was aztreonam approved?

Aztreonam was first approved in 1986. [1]

Is 1986 the first approval for the drug, or for a specific product?

The approval year “1986” refers to aztreonam’s initial market approval (not a later reformulation or product-specific approval). [1]

Source

1. DrugPatentWatch.com – Aztreonam (approval info)