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Mydriasis is the dilation of the pupil, usually having a non-physiological cause, [3] or sometimes a physiological pupillary response. [4] Non-physiological causes of mydriasis include disease, trauma, or the use of certain types of drug. It may also be of unknown cause.
Poppers is an inhaled drug which contains a range of alkyl nitrites, such as isobutyl nitrite and amyl nitrite. [11] Despite its primary usage as a potent vasodilator , [ 11 ] its popularity among the homosexual community largely stems from its ability to facilitate anal sexual intercourse by relaxing the smooth muscles in the internal anal ...
If the pupil does not dilate, the lesion is postganglionic. [7] Hydroxyamphetamine has some limitations to its use as a diagnostic tool. If it is intended as an immediate follow up to another mydriatic drug (cocaine or apraclonidine), then the patient must wait anywhere from a day to a week before hydroxyamphetamine can be administered.
GoodRx released a list of 19 of the most influential drugs and vaccines approved by the FDA in 2024 to treat a variety of conditions. These medications are “slated to make a big clinical impact."
Topical atropine is used as a cycloplegic, to temporarily paralyze the accommodation reflex, and as a mydriatic, to dilate the pupils. [15] Atropine degrades slowly, typically wearing off in 7 to 14 days, so it is generally used as a therapeutic mydriatic, whereas tropicamide (a shorter-acting cholinergic antagonist) or phenylephrine (an α-adrenergic agonist) is preferred as an aid to ...
Nerves involved in the resizing of the pupil connect to the pretectal nucleus of the high midbrain, bypassing the lateral geniculate nucleus and the primary visual cortex. From the pretectal nucleus neurons send axons to neurons of the Edinger-Westphal nucleus whose visceromotor axons run along both the left and right oculomotor nerves .
In general, large-scale studies do tend to show that long-term use of antidepressants is associated with weight gain side effects. However, study data on escitalopram and weight changes is very ...
Residential drug treatment co-opted the language of Alcoholics Anonymous, using the Big Book not as a spiritual guide but as a mandatory text — contradicting AA’s voluntary essence. AA’s meetings, with their folding chairs and donated coffee, were intended as a judgment-free space for addicts to talk about their problems.