In one aspect, the present invention is directed to methods for treating fatigue, neurobehavioral slowing and other cognitive disorders and defects due to cancers and treatments associated with cancers, and similar conditions. In a further aspect, the present invention is directed to methods for treating disorders related to menopause, including executive function defects. The methods involve the administration of a composition comprising D-threo methylphenidate that is substantially free of L-threo methylphenidate and of erythreo forms of methylphenidate.

Menopause is a stage in a woman's life when her ovaries stop producing the hormones estrogen and progesterone and she stops having her monthly menstrual cycle (her period). It is a normal part of aging and marks the end of a woman's reproductive years. Menopause typically occurs in a woman's late 40's to early 50's. It can also lead to sleep problems.

Anxiety and even panic attacks may be symptoms of a number of hormonal changes or problems in women, including premenstrual syndrome (PMS), premenstrual dysphoric disorder (PMDD), perimenopause, and menopause. Hormonal changes may cause the anxiety or make it worse. If you are a woman, you may want to explore these other conditions because treating them may treat the anxiety itself.

Talking about the causes of menopause, if it takes place after 45 years of age, it is considered normal. Here the factor that can be held responsible is aging. But sometimes, it happens early. It can be due to factors like surgery in which ovaries are removed. Women who indulge in smoking usually have menopause two years early. When menopause occurs before the age of 40 years, it is termed as premature menopause and requires proper medications.

At the time of menopause, the entire chain of endocrine glands is affected, particularly, the gonads, thyroid, and pituitary glands. In some women, the menopausal change takes place without any unpleasant symptoms, the only change really being the cessation of menstrual flow. There are, however, many women who develop disturbing symptoms such as hot flushes, night sweats, tension, and insomnia, diminished interest in sex, irritability, and depression. Other symptoms are fatigue, palpitations, dizziness, headaches, and numbness.

Menopause sleep disorders include any ailment in a person's normal sleep patterns. If sleep disorders reach a severe intensity, they can seriously affect your mental and emotional health. Insomnia is the most frequent complaint, occurring in up to 56% of menopausal women. Some women may also develop restless leg syndrome, snoring, or sleep apnea (gasping breath during sleep).

In one aspect, the present invention is directed to methods for treating fatigue, neurobehavioral slowing and other cognitive disorders and defects due to cancer and treatments associated with cancers, and similar conditions. In a further aspect, the present invention is directed to methods for treating disorders related to menopause, including executive function defects. The methods involve the administration of a composition comprising D-threo methylphenidate that is substantially free of L-threo methylphenidate and of erythro forms of methylphenidate.

Menopause is the time in a woman's life when her periods ceases and she can't have children any more. Menopause is a stage of the human female reproductive cycle that occurs as the ovaries stop producing estrogen, causing the reproductive system to gradually shut down.

It is a stage of life during which a woman passes from the reproductive to the non reproductive stage and she experiences the cessation of menstruation.The period marked by the natural and permanent cessation of menstruation, occurring usually between the ages of 45 and 55.