Methods for treatment of cognitive and menopausal disorders with D-threo methylphenidate

A method for alleviating fatigue arising from the administration of a treatment for an oncological condition, said method comprising the steps of:

• identifying a patient suffering from said fatigue, and
• administering to said patient a unit dosage comprising a compound having the formula
• or a pharmaceutically acceptable salt thereof, wherein R1 is C1-C4 alkyl, and R2 is hydrogen or C1-C4 alkyl, in a pharmaceutically acceptable carrier or diluent, said dosage having less than 10% by weight of other stereoisomers of the compound or salt.

A method for alleviating neurobehavioral slowing arising from an oncological condition, said method comprising the steps of:

• identifying a patient suffering from said neurobehavioral slowing, and
• administering to said patient a unit dosage comprising a compound having the formula
• or a pharmaceutically acceptable salt thereof, wherein R1 is C1-C4 alkyl, and R2 is hydrogen or C1-C4 alkyl, in a pharmaceutically acceptable carrier or diluent, said dosage having less than 10% by weight of other stereoisomers of the compound or salt.

A method for alleviating neurobehavioral slowing arising from the administration of a treatment for an oncological condition, said method comprising the steps of:

• identifying a patient suffering from said neurobehavioral slowing, and
• administering to said patient a unit dosage comprising a compound having the formula
• or a pharmaceutically acceptable salt thereof, wherein R1 is C1-C4 alkyl, and R2 is hydrogen or C1-C4 alkyl, in a pharmaceutically acceptable carrier or diluent, said dosage having less than 10% by weight of other stereoisomers of the compound or salt.