CDEK
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Ayerst, McKenna and Harrison

For profitContributed to NMEWebsite ↗
Phase 1Phase 2Phase 3Phase 4
Acquired by American Home Products → Pfizer on Jan 1, 1943

Timeline

1920s

  1. Jan 1, 1925

    Ayerst, McKenna and Harrison— Founded

1940s

  1. Jan 1, 1943

    American Home Products— Acquired By

2000s

  1. Oct 15, 2009

    Pfizer— Now

Marketed drugs (1)

Details

Founded
Montreal, Quebec, CA Jan 1, 1925