Mylan NV agreed to settle U.S. SEC charges that the company hid from investors the impact of a federal probe into the drugmaker’s overbilling the government for the EpiPen allergy treatment.

EpiPens and other autoinjectors filled with epinephrine to treat severe allergic reactions may still be potent enough to work many months past their labeled expiration date, according to a study that concludes patients might need expensive refills less often.

Many of the largest U.S. pharmacies and drug distributors do not have Teva Pharmaceutical Industries Ltd.’s generic version of EpiPen five months after the life-saving allergy treatment was approved for sale in the United States, pharmacy chains and a group that tracks drug shortages told Reuters.

Gilead Sciences Inc. plans to launch generic versions of the company’s hepatitis C drugs in the United States, at a time when regulators are looking to lower healthcare costs.

Walgreens Boots Alliance Inc. said emergency allergy shots from Kaleo will be available in the U.S. drugstore chain’s stores, the latest effort to address shortages of the lifesaving treatment during the back-to-school season.

The U.S. Food and Drug Administration extended the expiration date of specific lots of Mylan NV’s EpiPen allergy injectors by four months to mitigate the shortage of the life-saving treatment.

The U.S. Food and Drug Administration approved Teva Pharmaceutical Industries Ltd.’s generic version of Mylan NV’s life-saving allergy injection EpiPen.

Adamis Pharmaceuticals is selling U.S. commercial rights to Symjepi, a competitor to Mylan’s EpiPen, to Novartis.

U.S. regulators said Mylan NV’s EpiPen products are in shortage, due to manufacturing delays that are creating intermittent supply constraints of the emergency allergy treatment.

Mylan N.V.’s emergency allergy antidote EpiPen is in short supply in Canada and Britain, but remains available in the United States, the treatment’s manufacturer said.