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NEW YORK — GlaxoSmithKline may be looking to buy a Brazilian drug maker for up to $4 billion, according to published reports.

Reuters, citing unnamed sources, said GSK was one of several drug companies looking to buy Ache Laboratorios Farmaceuticos for $3 billion to $4 billion. Other companies looking to buy the drug maker included Novartis, Pfizer and Abbott Labs.

Reuters noted that the company was attractive to drug makers looking to expand their footprints in Latin America and that it was a major producer of prescription and OTC medications.

JERUSALEM — Teva Pharmaceutical Industries has added a University of California at Los Angeles medical professor to its board of directors, the Israeli drug maker said.

Teva announced the appointment of Arie Belldegrun, who is a director at the UCLA Institute of Urology Oncology and professor and chair of urologic oncology at the David Geffen School of Medicine. The company appointed Belldegrun at its Feb. 5 meeting to fill a vacancy, and Belldegrun's term will extend the drug maker's 2013 annual shareholder meeting.

FORT WORTH, Texas — A topical medication made by Galderma Labs for treating melasma of the face is now available in pharmacies, Galderma said.

Tri-Luma (fluocinolone acetonide 0.01%, hydroquinone 4%), tretinoin 0.05%) is described as the only Food and Drug Administration-approved triple combination topical product for the short-term treatment of moderate to severe melasma. The chronic skin condition affects more than 7 million people in the United States.

MCLEAN, Va. — Unexpected toxicities from prescription drugs that emerge years after regulatory approval may be due to poor medication adherence in clinical trials, according to a new study.

While much attention on medication adherence has focused on patients not taking the already approved drugs prescribed to them or not taking them properly, the new study, released Tuesday by Consumer Health Information, found problems with adherence in clinical trials as well.

WASHINGTON — Massachusetts and New Jersey lately have been cracking down on sterile compounding pharmacies alleged to violate safety regulations, but the crackdown may soon go nationwide, predicted a legal firm focused on the matter.

LeClairRyan attorney Michael Ruggio said officials in several states were increasing scrutiny of compounding pharmacies in the wake of an outbreak of fungal meningitis linked to the New England Compounding Center, which so far sickened 696 people and killed 45, according to the Centers for Disease Control and Prevention.

HAYWARD, Calif. — Generic drug maker Impax Labs has settled with Shire Labs over an authorized generic version of a Shire drug for treating attention deficit hyperactivity disorder, Impax said.

SILVER SPRING, Md. — A federal judge has ordered a California company and its owner to stop manufacturing and distributing drugs and dietary supplements in domestic commerce until their manufacturing operations comply with the Federal Food, Drug, and Cosmetic Act, the Food and Drug Administration reported Friday. 

BAGSVÆRD, Denmark — The Food and Drug Administration declined to approve two insulin products made by Danish drug maker Novo Nordisk, the company said Sunday.

Novo Nordisk said it received complete response letters from the FDA for Tresiba (insulin degludec) and Ryzodeg (insulin degludec and insulin aspart). The FDA issues a complete response letter when it has finished reviewing an application for a drug, but determines that the application can't be approved in its current form.