Pharmaceutical Mergers

This is an ongoing attempt to list pharmaceutical mergers and major subsidiaries.

The columns are sortable (in ascending or descending order) by clicking on the arrows in the headers.

Anyone wishing to provide corrections, additions, or to help with maintaining/referencing this list contact me at ablumsohn-3@yahoo.co.uk.

ACompany	BCompany	Year	Result	IsNow	Subsidiary of
Sterling Drug	Bayer (US)	1918	Sterling Drug
Bayer (US)	Sterling Drug	1918	Sterling Drug
Bayer	IG Farben	1925	IG Farben Conglomerate
Hoechst	IG Farben	1925	IG Farben Conglomerate
Ethicon		1949			Johnson and Johnson
IG Farben	Bayer	1951	Re-emerges From IG Farben
Bayer	IG Farben	1951	Re-emerges From IG Farben
IG Farben	Hoechst	1951	Re-emerges From IG Farben
Hoechst	IG Farben	1951	Re-emerges From IG Farben
Allen and Hanburys	Glaxo	1958	Glaxo	GlaxoSmithKline
Glaxo	Allen and Hanburys	1958	Glaxo	GlaxoSmithKline
Cilag		1959			Johnson and Johnson
McNeil Laboratories		1959			Johnson and Johnson
Cilag		1959			Johnson and Johnson
Janssen		1961			Johnson and Johnson
Schering Corporation (US)	Plough	1971	Schering-Plough
Plough	Schering Corporation (US)	1971	Schering-Plough
Parke-Davis	Warner-Lambert	1973	Warner-Lambert	Pfizer
Warner-Lambert	Parke-Davis	1973	Warner-Lambert	Pfizer
Miles Laboratories		1978			Bayer
Miles Canada		1978			Bayer
Cutter Laboratories		1978			Bayer
Searle		1985	Searle	Pfizer	Monsanto
Ayerst Laboratories	Wyeth	1987	Wyeth	Wyeth
Wyeth	Ayerst Laboratories	1987	Wyeth	Wyeth
Sterling Winthrop	Eastman Kodak	1988	Sterling Winthrop/EK
Bristol-Myers	Squibb	1989	Bristol-Myers Squibb
Squibb	Bristol-Myers	1989	Bristol-Myers Squibb
Beecham	Smithkline Beckman	1989	SmithKline Beecham	GlaxoSmithKline
Smithkline Beckman	Beecham	1989	SmithKline Beecham	GlaxoSmithKline
Evans	Medirace	1990	Medeva	UCB
Medirace	Evans	1990	Medeva	UCB
Rhone-Poulenc	Rorer	1990	Rhone Poulenc Rorer	Sanofi-Aventis
Rorer	Rhone-Poulenc	1990	Rhone Poulenc Rorer	Sanofi-Aventis
Cilag	Janssen	1992	Janssen-Cilag (some countries)		Johnson and Johnson
Janssen	Cilag	1992	Janssen-Cilag (some countries)		Johnson and Johnson
Sanofi	Sterling Winthrop	1992	Sanofi Winthrop	Sanofi-Aventis
Sterling Winthrop	Sanofi	1992	Sanofi Winthrop	Sanofi-Aventis
Farmitalia Carlo Erba	Kabi Pharmacia	1993	Kabi Pharmacia	Fresenius
Kabi Pharmacia	Farmitalia Carlo Erba	1993	Kabi Pharmacia	Fresenius
McNeil Laboratories	Ortho Pharmaceutical	1993	Ortho-McNeil Pharmaceutical		Johnson and Johnson
Bayer	Sterling Winthrop (OTC division ex SKB)	1994	Bayer
Sterling Winthrop (OTC division ex SKB)	Bayer	1994	Bayer
Hoechst	Roussel Laboratories	1994	Hoechst Roussel	Sanofi-Aventis
Roussel Laboratories	Hoechst	1994	Hoechst Roussel	Sanofi-Aventis
Hoffmann–La Roche	Syntex	1994	Hoffmann–La Roche	Hoffmann–La Roche
Syntex	Hoffmann–La Roche	1994	Hoffmann–La Roche	Hoffmann–La Roche
Glaxo	Wellcome	1995	Glaxo-Wellcome	GlaxoSmithKline
Wellcome	Glaxo	1995	Glaxo-Wellcome	GlaxoSmithKline
Hoechst	Marion Merrell Dow	1995	Hoechst Marion Roussel	Sanofi-Aventis
Marion Merrell Dow	Hoechst	1995	Hoechst Marion Roussel	Sanofi-Aventis
Cilag	Janssen	1995	Janssen-Cilag
Janssen	Cilag	1995	Janssen-Cilag
Pharmacia	Upjohn	1995	Pharmacia and Upjohn	Pfizer
Upjohn	Pharmacia	1995	Pharmacia and Upjohn	Pfizer
Imperial Services	Shire	1995	Shire
Shire	Imperial Services	1995	Shire
Monarch Pharmaceuticals		1995			King
Meridian Medical Technologies		1995			King
Parkdale Pharmaceuticals		1995			King
Ciba-Geigy	Sandoz	1996	Novartis
Sandoz	Ciba-Geigy	1996	Novartis
Fisons	Rhone Poulenc Rorer	1996	Rhone Poulenc Rorer	Sanofi-Aventis
Rhone-Poulenc Rorer	Fisons	1996	Rhone Poulenc Rorer	Sanofi-Aventis
Cordis		1996			Johnson and Johnson
Alliance Sante	Unichem	1997	Alliance Unichem	Alliance Boots
Unichem	Alliance Sante	1997	Alliance Unichem	Alliance Boots
Amersham International	Nycomed ASA	1997	Amersham
Nycomed ASA	Amersham International	1997	Amersham
Baxter	Immuno International	1997	Baxter
Immuno International	Baxter	1997	Baxter
Alpharma	Cox	1998	Alpharma	Actavis
Cox	Alpharma	1998	Alpharma	Actavis
Astra AB	Zeneca	1998	AstraZeneca
Zeneca	Astra AB	1999	AstraZeneca
Scholl	Seton	1998	Seton Scholl	SSL International
Seton	Scholl	1998	Seton Scholl	SSL International
International Clinical Laboratories	Smithkline Beckman	1998	Smithkline Beckman	GlaxoSmithKline
Smithkline Beckman	International Clinical Laboratories	1998	Smithkline Beckman	GlaxoSmithKline
Hoechst Marion Roussel	Rhone Poulenc Rorer	1999	Aventis Pharma	Sanofi-Aventis
Rhone Poulenc Rorer	Hoechst Marion Roussel	1999	Aventis Pharma	Sanofi-Aventis
Axis Biochemicals	Shield Diagnostics	1999	Axis-Shield
Shield Diagnostics	Axis Biochemicals	1999	Axis-Shield
Celltech	Chiroscience	1999	Celltech Chiroscience	UCB
Chiroscience	Celltech	1999	Celltech Chiroscience	UCB
Fresenius	Kabi	1999	Fresenius	Fresenius
Kabi	Fresenius	1999	Fresenius	Fresenius
Ethical Generics	Genus	1999	Genus
Genus	Ethical Generics	1999	Genus
Pharmacia and Upjohn	Monsanto	1999	Pharmacia	Pfizer
Sanofi Winthrop	Synthelabo	1999	Sanofi-Synthelabo	Sanofi-Aventis
Synthelabo	Sanofi Winthrop	1999	Sanofi-Synthelabo	Sanofi-Aventis
London International	Seton Scholl	1999	SSL International
Seton Scholl	London International	1999	SSL International
Celltech Chiroscience	Medeva	2000	Celltech	UCB
Medeva	Celltech Chiroscience	2000	Celltech	UCB
Glaxo Wellcome	Smithkline Beecham	2000	GlaxoSmithKline	GlaxoSmithKline
Smithkline Beecham	Glaxo Wellcome	2000	GlaxoSmithKline	GlaxoSmithKline
Pfizer	Warner-Lambert Co	2000	Pfizer	Pfizer
Warner-Lambert Co	Pfizer	2000	Pfizer	Pfizer
Searle (Monsanto)	Pharmacia and Upjohn	2000	Pharmacia	Pfizer
Monmouth	Shire	2000	Shire
Shire	Monmouth	2000	Shire
Bristol-Myers-Squibb	DuPont	2001	Bristol-Myers Squibb
DuPont	Bristol-Myers-Squibb	2001	Bristol-Myers Squibb
Antigen	Goldshield	2001	Goldshield
Goldshield	Antigen	2001	Goldshield
Norton	(Rebranding)	2001	IVAX	TEVA
ALZA		2001			Johnson and Johnson
Hoffmann–La Roche	Chugai Pharmaceutical	2002		Roche majority owner Chugai
Chugai Pharmaceutical	Hoffmann–La Roche	2002		Roche majority owner Chugai
Hoffmann–La Roche	Novartis	2003		Novartis owns 33% Roche[1]
Novartis	Hoffmann–La Roche	2003		Novartis owns 33% Roche[1]
Pfizer	Pharmacia	2003	Pfizer	Pfizer
Pharmacia	Pfizer	2003	Pfizer	Pfizer
Searle	Pfizer	2003	Pfizer	Pfizer retire Searle name
British Biotech	Vernalis	2003	Vernalis
Vernalis	British Biotech	2003	Vernalis
Alliance Pharma	Dermapharm	2004	Alliance Pharma	Alliance Boots
Dermapharm	Alliance Pharma	2004	Alliance Pharma	Alliance Boots
Bayer	Roche Consumer Health	2004	Bayer
Roche Consumer Health	Bayer	2004	Bayer
Eldon Laboratories	Martindale	2004	Martindale
Martindale	Eldon Laboratories	2004	Martindale
Aventis	Sanofi-Synthelabo	2004	Sanofi-Aventis
Sanofi-Synthelabo	Aventis	2004	Sanofi-Aventis
APS/Berk	(Renamed)	2004	TEVA
Celltech	UCB	2004	UCB	UCB
Actavis	Alpharma	2005	Actavis	Actavis
Alpharma	Actavis	2005	Actavis	Actavis
Hoffmann–La Roche	Genentech	2004		Roche majority owner G'tech
Genentech	Hoffmann–La Roche	2004		Roche majority owner G'tech
Aventis Pasteur MSD	(Name change Vaccine div)	2005	Sanofi Pasteur MSD
Alliance Unichem	Boots	2006	Alliance Boots	Alliance Boots
Boots	Alliance Unichem	2006	Alliance Boots	Alliance Boots
Altana Pharma	Nycomed	2006	Nycomed
Nycomed	Altana Pharma	2006	Nycomed
TEVA	IVAX	2006	TEVA
IVAX	TEVA	2006	TEVA
Lifescan		2006			Johnson and Johnson
Bayer	Schering	2007	Bayer Schering
Schering	Bayer	2007	Bayer Schering

Selected References

1. New York Times 24 Jan 2003 Link. Novartis says it had accumulated enough stock in the Roche Group to control 32.7 percent of voting rights ^ ^{a b}