41. This condition differs from narcolepsy , although horses may also suffer from that disorder. 42. Certain disorders like narcolepsy , are best treated with prescription drugs such as Modafinil. 43. Methylphenidate was first used to allay barbiturate-induced coma, narcolepsy and depression. 44. Genetic knockout mice lacking the gene for orexin were also reported to exhibit narcolepsy . 45. Narcolepsy has been reported as a related disorder.46. Additionally, she suffered from narcolepsy , falling unconscious whenever she had a vision. 47. This seems like a mild form of narcolepsy . 48. Most sleep doctors were primarily concerned with apnea; some were experts in narcolepsy . 49. DQB1 * 0301 is also predisposing in narcolepsy . 50. Only about 20 to 25 percent of people with narcolepsy experience all four symptoms.