Pfizer, Inc

The primary manufacturers are Hoffmaim-LaRoche, Inc., Pfizer, Inc., Agri-Bio Corp. (a division of A. H. Robins), Elanco Products Co. (a division of Eh Lilly and Co.), Hoechst-Roussel Agri Vet Co., American Cyanamid Co., and Kaken Pharmaceutical Co. 

In the United States, the manufacturers of fermentation-derived tetracyclines (1), (2), and (3) are the Ledede Laboratories, a division of American Cyanamid Co., Charles Pfizer Inc., Bristol Laboratories, and RacheUe Laboratories. There are also several manufacturers abroad. Tetracycline is now sold genetically by many companies. Pfizer s doxycycline (6) and Ledede s minocycline (7), both semisynthetic tetracyclines, are the only members of the group that have increasing sales. Table 1 fists the commercial tetracyclines and the corresponding trade names. 

Calcium metal is produced in the United States by Pfizer Inc., Canaan, Coimecticut, and in Canada by Timminco Metals, Toronto, Ontario. In France it is produced by Pechiney ElectrometaHurgie. It is also produced in the Commonwealth of Independent States (CIS) and the People s RepubHc of China. Both Pfizer and Timminco supply the various grades in a variety of sizes and forms. In addition, Pfizer suppHes an 80% Ca—20% Mg alloy and a steel-clad calcium wire for use in deoxidation of steel and other metals. Timminco and Pfizer both supply ca 75% Ca—25% Al alloy for use in lead alloying. Timminco also suppHes a 70% Mg—30% Ca alloy for use in lead debismuthizing (18), and calcium particulate products, which are purchased by several companies for the manufacture of cored wire for use in the steel industry. 

Pluess-Staufer), and Pfizer Inc. The principal U.S. producers of precipitated products are Mississippi Lime Co. and Pfizer Inc. 

Pf er Products for Petroleum Production, Technical Bulletin No. 97, Pfizer Inc., New York, 1961. 

Procardia XL. Procardia XL extended-release capsules, marketed by Pfizer Labs Division of Pfizer, Inc., contain nifedipine [21829-25-4] a calcium channel blocker of mol wt 346.3. The extended release tablet is formulated as a once-a-day controlled release capsule for oral adrninistration dehvering either 30, 60, or 90 mg nifedipine. Procardia XL is indicated for use in the management of vasospastic angina, chronic stable angina, and hypertension (see Cardiovascularagents). 

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