In what year did Schwartz-Pharma receive FDA approval for the drug Levsin?

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Clarification of Question by davidhardwick-ga on 17 Mar 2003 05:33 PST

In what year was Levsin released in the US?

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Request for Question Clarification by scriptor-ga on 17 Mar 2003 05:46 PST

Dear davidhardwick,

All I have found is the information the the Schwartz Pharma (fromerly
Kremers Urban Co.) did register "Levsin" as a trademark for their
hyoscyamine sulfate in 1955 and made "commercial use" of it the very
same year. So I would say that the drug was FDA approved in 1955.
Would you accept this as an answer? Please let me know.

Regards,
Scriptor