Muscarinic antagonists Flashcards
what effect do muscarinic antagonists have on the eye?
mydriasis (dilation) of pupil
what effect do muscarinic antagonists have on the heart?
allow HR to increase (not by any means of stimulation)
what effect do muscarinic antagonists have on the bladder?
constriction
what effect do muscarinic antagonists have on the glands?
prevent secretion
what effect do muscarinic antagonists have on the lungs?
what would you expect they would be a treatment for?
prevent bronchoconstriction
asthma and COPD
what effect do muscarinic antagonists have on the GI tract?
slow down gut
what effect do muscarinic antagonists have on the CNS?
block muscarinic receptors in brain
What effect does atropine have at low doses?
Dry mouth and thirst, dry skin, increased HR
What effect does atropine have at medium doses?
Mydriasis, blurred vision, tachycardia
What effect does atropine have at high doses?
Rapid, weak pulse and CNS effects
Atropine may dilate the pupil for? (days)
7-10 days
What are the uses of Atropine?
Cardiac stimulant
Anti-diarrheal
Treat mushroom and nerve gas poisoning
what was Hyoscyamine used for?
irritable bowel syndrome, incontinence, hyperhidrosis, peptic ulcers
what is Scopolamine used for?
motion sickness
what is Ipratropium used for?
rhinorrhea
You would expect Tiotropium, Glycopyrrolate, Formoterol, Aclidinium bromide, and Umeclidium to target M1 or M2 receptors?
what do they reduce in lungs?
would you expect a lot of systemic side effects?
M1 receptors
lung secretions
no
Fesoterodine, Tolterodine, Oxybutynin, Trospium, Solifenacin succinate, and Darifenacin are used to treat?
side effects?
incontinency and
overactive bladder syndromes
SE: dryness and constipation
what is tropicamide used for?
eye exams
what is glycopyrrolate used for?
control drooling and hyperhidrosis (excessive sweating)
what are benztropine and biperiden used for?
drug-induced parkinsons
