Abstract: The present invention provides a method of providing neuroprotection to a mammal comprising administering to said mammal suffering from or at risk of suffering a noxious action on its nerve cells an effective amount of a compound of formula I to inhibit or prevent nerve cell injury or death wherein the 2-imidazolin-2-ylamino group is in either the 5- or 6-position of the quinoxaline nucleus; x, y and z are in any of the remaining 5-, 6-, 7- or 8-positions and are selected from hydrogen, halogen, lower alkyl, lower alkoxy or trifluoromethyl; and R is an optional substituent in either the 2- or 3-position of the quinoxaline nucleus and may be hydrogen, lower alkyl or lower alkoxy, or pharmaceutically acceptable salts thereof and mixtures thereof. Such noxious action may result from ischemia, e.g. spinal ischemia.

Abstract: The present invention provides a method of providing neuroprotection to a mammal comprising administering to said mammal suffering from or at risk of suffering a noxious action on its nerve cells an effective amount of a compound of formula I to inhibit or prevent nerve cell injury or death 1

Abstract: The present invention provides a method of providing neuroprotection to a mammal comprising administering to said mammal suffering from or at risk of suffering a noxious action on its nerve cells an effective amount of a compound of formula I to inhibit or prevent nerve cell injury or death wherein the 2-imidazolin-2-ylamino group is in either the 5- or 6-position of the quinoxaline nucleus; x, y and z are in any of the remaining 5-, 6-, 7- or 8-positions and are selected from hydrogen, halogen, lower alkyl, lower alkoxy or trifluoromethyl; and R is an optional substituent in either the 2- or 3-position of the quinoxaline nucleus and may be hydrogen, lower alkyl or lower alkoxy, or pharmaceutically acceptable salts thereof and mixtures thereof. Such noxious action may result from ischemia, e.g. spinal ischemia.

Abstract: The present invention provides a method of providing neuroprotection to a mammal comprising administering to said mammal suffering from or at risk of suffering a noxious action on its nerve cells an effective amount of a compound of formula I to inhibit or prevent nerve cell injury or death 1

Abstract: The present invention provides a method of providing neuroprotection to a mammal comprising administering to said mammal suffering from or at risk of suffering a noxious action on its nerve cells an effective amount of a compound of formula I to inhibit or prevent nerve cell injury or death 1

Abstract: The present invention provides a method of providing neuroprotection to a mammal comprising administering to said mammal suffering from or at risk of suffering a noxious action on its nerve cells an effective amount of a compound of formula I to inhibit or prevent nerve cell injury or death wherein the 2-imidazolin-2-ylamino group is in either the 5- or 6-position of the quinoxaline nucleus; x, y and z are in any of the remaining 5-, 6-, 7- or 8-positions and are selected from hydrogen, halogen, lower alkyl, lower alkoxy or trifluoromethyl; and R is an optional substituent in either the 2- or 3-position of the quinoxaline nucleus and may be hydrogen, lower alkyl or lower alkoxy, or pharmaceutically acceptable salts thereof and mixtures thereof. Such noxious action may result from ischemia, e.g. spinal ischemia.

Abstract: The present invention provides a method of protecting the optic or retinal nerve cells of a mammal comprising administering to said mammal suffering from or at risk of suffering a noxious action on said nerve cells an effective amount of a compound of formula I to inhibit or prevent nerve cell injury or death wherein the 2-imidazolin-2-ylamino group is in either the 5- or 6-position of the quinoxaline nucleus; x, y and z are in any of the remaining 5-, 6-, 7- or 8-positions and are selected from hydrogen, halogen, lower alkyl, lower alkoxy or trifluoromethyl; and R is an optional substituent in either the 2- or 3-position of the quinoxaline nucleus and may be hydrogen, lower alkyl or lower alkoxy, or pharmaceutically acceptable salts thereof and mixtures thereof. Such noxious action may result from glaucomatous optic neuropathy, age related macular degeneration or retinitis pigmentosa.

Abstract: Methods are disclosed for treating a mammal with a condition that responds to .alpha.2 agonist treatment without causing cardiovascular side effects using compounds of the formula ##STR1## wherein R.sub.1 is H, alkyl or 1 to 4 carbon atoms or a halogen atom, X is O or NH and A is H or an oxo group and wherein said compound does not cause a concomitant reduction in blood pressure of said mammal.

Abstract: A method according to which neuroprotection is conferred upon ocular nerve cells by administration of a drug of formula I to the optic nerve and/or retina of a mammal within a period prior to or following an insult to ocular nerve cells but prior to cell death ##STR1## wherein the 2-imidazolin-2-ylamino group may be in either the 5- or 6-position of the quinoxaline nucleus; x, y and z may be in any of the remaining 5-, 6-, 7- or 8-positions and are selected from hydrogen, halogen, lower alkyl, lower alkoxy or trifluoromethyl; and R is an optional substitutent in either the 2- or 3-position of the quinoxaline nucleus and may be hydrogen, lower alkyl or lower alkoxy is disclosed.