This week, 5 Pharmaceuticals stocks are improving their overall ratings on Portfolio Grader. Each of these stocks is rated an “A” (“strong buy”) or “B” overall (“buy”).

Perrigo Co. Plc (PRGO) improves from a C to a B rating this week. Perrigo Co. Plc manufactures, distributes and markets pharmaceutical and nutritional products. The company also gets A’s in sales growth. For more information, get Portfolio Grader’s complete analysis of PRGO stock.

This week, Astrazeneca PLC Sponsored ADR (AZN) pushes up from a C to a B rating. Astrazeneca PLC Sponsored ADR is a biopharmaceutical company focused on therapy related to cardiovascular health, gastrointestinal health, infection, neuroscience, oncology and respiratory health, and inflammation. The company also gets A’s in operating margin growth, earnings growth, earnings momentum, and return on equity. For more information, get Portfolio Grader’s complete analysis of AZN stock.

Depomed, Inc.’s (DEPO) ratings are looking better this week, moving up to a B from last week’s C. Depomed, Inc. develops new and proprietary oral drug delivery technologies. The company also gets A’s in sales growth, earnings revisions, earnings surprise, return on equity, and free cash flow. For more information, get Portfolio Grader’s complete analysis of DEPO stock.

Supernus Pharmaceuticals, Inc. (SUPN) gets a higher grade this week, advancing from a B last week to a A. Supernus Pharmaceuticals, Inc. is a specialty pharmaceutical company that develops and markets proprietary drugs for the treatment of central nervous system diseases and disorders. The company also gets A’s in earnings revisions and earnings surprise. For more information, get Portfolio Grader’s complete analysis of SUPN stock.

Juniper Pharmaceuticals, Inc. (JNP) shows solid improvement this week. The company’s rating rises from a B to a A. The company also gets A’s in sales growth and earnings revisions. For more information, get Portfolio Grader’s complete analysis of JNP stock.

Louis Navellier’s proprietary Portfolio Grader stock ranking system assesses roughly 5,000 companies every week based on a number of fundamental and quantitative measures. Stocks are given a letter grade based on their results — with A being “strong buy,” and F being “strong sell.” Explore the tool here.