Pharmacy chain Longs Drug Stores Corp. said on Monday it would move products used to create the illegal drug methamphetamine behind the pharmacy counter in all its stores within the next few months.

Longs, based in Walnut Creek, California, said it had volunteered to move over-the-counter medications containing the decongestant pseudoephedrine away from customer traffic areas in all its 472 stores.

The company said it made its decision after discussions about the growing methamphetamine problem with U.S. Sen. Dianne Feinstein, a California Democrat.

“We have the ability to tackle this issue now and perhaps prevent further abuse,” President and Chief Executive Warren Bryant said in a statement.

Feinstein and Sen. Jim Talent, a Missouri Republican, have co-sponsored legislation requiring Americans who seek many common cold medicines to request them from pharmacists.

The proposed Senate bill would apply to medicines, such as Pfizer Inc.‘s Sudafed, that contain pseudoephedrine, the key ingredient in methamphetamine.