See how we're growing and where we're going

Check back often for the latest information on our portfolio, convention engagements, and booth numbers.

  • GREENSTONE LLC INTRODUCES ATORVASTATIN CALCIUM TABLETS—Its Latest Generic Pharmaceutical Product

    PEAPACK, N.J., January 2013—Greenstone LLC, a U.S.-based generic pharmaceutical subsidiary of Pfizer Inc. (NYSE: PFE), is pleased to announce the introduction of Atorvastatin Calcium Tablets to its ever-expanding generic pharmaceutical product line. The product is offered in dosage strength of 10mg x 90; 10mg x 1,000; 20mg x 90; 20mg x 1,000; 40mg x 90; 40mg x 500; 80mg x 90; 80mg x 500. Read more »

  • GREENSTONE LLC INTRODUCES PHENYTOIN TABLETS—Its Latest Generic Pharmaceutical Product

    PEAPACK, N.J., December 2012—Greenstone LLC, the U.S.-based generic pharmaceutical subsidiary of Pfizer Inc. (NYSE: PFE), is pleased to announce the introduction of Phenytoin Tablets, USP to its ever-expanding generic pharmaceutical product line. The product is offered in dosage strength of 50mg. Read more »

  • GREENSTONE LLC INTRODUCES SILDENAFIL TABLETS—Its Latest Generic Pharmaceutical Product

    PEAPACK, N.J., November 2012—Greenstone LLC, the U.S.-based generic pharmaceutical subsidiary of Pfizer Inc. (NYSE: PFE), is pleased to announce the introduction of Sildenafil Tablets to its ever-expanding generic pharmaceutical product line. The product is offered in dosage strength of 20mg. Read more »

  • GREENSTONE LLC INTRODUCES DICLOFENAC SODIUM/MISOPROSTOL TABLETS—Its Latest Generic Pharmaceutical Product

    PEAPACK, N.J., November 2012—Greenstone LLC, the U.S.-based generic pharmaceutical subsidiary of Pfizer Inc. (NYSE: PFE), is pleased to announce the introduction of Diclofenac Sodium/Misoprostol tablets to its ever-expanding generic pharmaceutical product line. The product is offered in dosage strengths of 50mg and 75mg. Read more »

  • GREENSTONE LLC INTRODUCES PHENYTOIN ORAL SUSPENSION, USP—Its Latest Generic Pharmaceutical Product

    PEAPACK, N.J., October 2012—Greenstone LLC, the U.S.-based generic pharmaceutical subsidiary of Pfizer Inc. (NYSE: PFE), is pleased to announce the introduction of Phenytoin Oral Suspension, USP to its ever-expanding generic pharmaceutical product line. Read more »

  • GREENSTONE LLC INTRODUCES TRIFLURIDINE OPHTHALMIC SOLUTION—Its Latest Generic Pharmaceutical Product

    PEAPACK, N.J., September 2012—Greenstone LLC, the U.S.-based generic pharmaceutical subsidiary of Pfizer Inc. (NYSE: PFE), is pleased to announce the introduction of Trifluridine Ophthalmic Solution to its ever-expanding generic pharmaceutical product line. The product is offered in dosage strength of 7.5 mL. Read more »

  • Greenstone LLC Introduces MONTELUKAST Sodium Tablets and Chewable Tablets—Its Latest Generic Pharmaceutical Product

    PEAPACK, N.J., August 2012—Greenstone LLC, the U.S.-based generic pharmaceutical subsidiary of Pfizer Inc. (NYSE: PFE), is pleased to announce the introduction of Montelukast Sodium Tablets and Chewable Tablets to its ever-expanding generic pharmaceutical product line. The tablets are offered in dosage strengths of 10 mg and the chewable tablets are offered in dosage strengths of 4 mg and 5 mg. Read more »

  • Greenstone LLC Announces Introduction of Olanzapine Tablets—Its Latest Generic Pharmaceutical Product

    PEAPACK, N.J., May 2012—Greenstone LLC, the U.S.-based generic pharmaceutical subsidiary of Pfizer Inc (NYSE: PFE), is pleased to announce the introduction of Olanzapine Tablets to its ever-expanding generic pharmaceutical product line. The product is offered in dosage strengths of 2.5 mg, 5 mg, 7.5 mg, 10 mg, 15 mg and 20 mg tablets. Read more »

  • Greenstone LLC Announces Introduction of Ziprasidone HCl Capsules—Its Latest Generic Pharmaceutical Product

    PEAPACK, N.J., April 2012—Greenstone LLC, the U.S.-based generic pharmaceutical subsidiary of Pfizer Inc (NYSE: PFE), is pleased to announce the introduction of Ziprasidone HCl Capsules to its ever-expanding generic pharmaceutical product line. The product is offered in dosage strengths of 20 mg, 40 mg, 60 mg, and 80 mg capsules. Read more »

  • Greenstone LLC Introduces 12 Generic Products to Date in 2011

    PEAPACK, N.J., October 2011—Through just the first nine months of 2011, Greenstone LLC, the generic pharmaceutical subsidiary of Pfizer Inc, has expanded its line of product offerings by introducing 12 additional generics, bringing the company's current portfolio to more than 80 generic medicines. Read more »

  • Greenstone LLC Announces Introduction of Exemestane Tablets—Its Latest Generic Pharmaceutical Product

    PEAPACK, N.J., May, 2011—Greenstone LLC, the generic pharmaceutical subsidiary of Pfizer Inc, is pleased to announce the introduction of Exemestane Tablets to its ever-expanding generic pharmaceutical product line. Read more »

  • Greenstone LLC Announces Introduction of Latanoprost Ophthalmic Solution—Its Latest Generic Pharmaceutical Product

    PEAPACK, N.J., May, 2011—Greenstone LLC, the generic pharmaceutical subsidiary of Pfizer Inc, is pleased to announce the introduction of Latanoprost to its ever-expanding generic pharmaceutical product line. Read more »

  • Notification of Product Theft

    May 18, 2011—Pfizer and its Greenstone subsidiary are working with the U.S. Food and Drug Administration, Office of Criminal Investigations (OCI), and other law enforcement officials to recover several different Greenstone products that were stolen on May 14, 2011 while being delivered from Pfizer’s Memphis facility to a customer in the Northeast. The products stolen are listed below. In every instance these products represent a small portion of each product lot. Read more »

News Archive»

About Greenstone. Greenstone LLC, established in 1992, is a wholly owned subsidiary of Pfizer Inc, one of the largest pharmaceutical companies in the world. Greenstone, which focuses on customer service, markets a broad line of quality authorized generics—along with an expanding line of ANDA (Abbreviated New Drug Application) generics. Greenstone authorized generics, well known for having the same physical characteristics as the innovators' brands, are supported by state-of-the-art distribution and operations services. Greenstone is working with numerous brand pharmaceutical companies to assist in their "post-exclusivity" planning, with a focus on authorized generics. The company offers a robust product pipeline that highlights quality generic equivalents to some of the best-selling branded pharmaceuticals. Greenstone LLC will continue to offer numerous future product opportunities for pharmacies and its trade partners.

Download Catalog

You are encouraged to report negative side effects of prescription drugs to the FDA.
Visit www.fda.gov/medwatch or call 1-800-FDA-1088.