[1] The original formulation of amphetamine mixed salts and methamphetamine was approved by the U.S. Food and Drug Administration (FDA) on January 19, 1960, under the name Obetrol.

Sometime prior to 1972, Rexar Pharmacal moved its manufacturing facilities, including its Obetrol Pharmaceutical Division, to Valley Stream, New York.

[citation needed] In 1970 the FDA issued an order requiring new drug applications for previously approved amphetamine products.

During these years, the drug Adderall was identical to the most recent formulation of Obetrol, except that the inscription on the pills was changed to "AD".

Other companies had begun manufacturing generic versions of Adderall, and the trade name was eventually sold to Barr Pharmaceuticals (acquired by Teva in 2008).

[citation needed] There is no drug commercially marketed called Obetrol at this time, nor has there been since Richwood acquired Rexar Pharmacal.