Muscarinic Antagonists

Beschreibung

Doctorate Pharmacology Mindmap am Muscarinic Antagonists, erstellt von melian.yates am 08/10/2013.
melian.yates
Mindmap von melian.yates, aktualisiert more than 1 year ago
melian.yates
Erstellt von melian.yates vor etwa 11 Jahre
59
1

Zusammenfassung der Ressource

Muscarinic Antagonists
  1. Parasympatholytics
    1. Competitive Antagonists for Ach at Muscarinic receptors
      1. Limited effect at the Neuromuscular junction or in Ganglionic transmission
        1. Nicotinic Receptors
          1. Sympathetic control
        2. Similar structure to Ach, but bulkier aromatic group in place of Acetyl group
        3. Synthetic
          1. Glycopyrronium Bromide
            1. Does NOT cross placenta and BBB
              1. Less CNS effects; useful in caesarian sections
              2. Less tachycardias
                1. Used in ocular surgery to prevent Vagal Stimulation
                2. Ipratopium Bromide
                  1. Bronchodilation (horses)
                    1. Tx for Chronic Obstructive Pulmonary Disease
                    2. Given Inhalation: Poor absorption, poor distribution; minimal side effects, local effect in respiratory tract
                    3. Tropicamide
                      1. Mydriatic
                        1. Drug of choice: Intra-ocular exam
                        2. Rapid onset, Shorter duration (hrs)
                        3. Cyclopentolate
                          1. Mydriatic
                            1. Cycloplegic
                              1. Tx of Uveitis
                              2. Long duration of action
                            2. Natural
                              1. Atropine
                                1. Belladona (dilates pupils, toxic)
                                  1. Given I/M, I/V, S/C and P.O.
                                    1. Metabolized in Liver; Excreted by Kidneys
                                      1. Tertiary Amine; Ionized at physiological pH yet crosses the gut, conjunctival sac (eye), and BBB
                                        1. Premed - to decrease Salivation
                                          1. Antispasmodic effect in the gut; Decreases gastric secretion
                                            1. Not recommended in Horses
                                              1. Decreases GI motility, can cause central excitation
                                            2. Tx of organophosphorus toxicity
                                              1. Mydriasis - examination
                                                1. Increase HR
                                                  1. Used with AChEI: to prevent side effects from Muscarinic stimulation when AChEI used to reverse neuromuscular blockade
                                                    1. Toxicity
                                                      1. CNS stimulation: Problem in horse
                                                        1. Constipation
                                                          1. Tachycardia
                                                            1. Urinary retention
                                                              1. AChEI can be used Tx Toxicity
                                                                1. Increase Ach to compete w/ Atropine
                                                            2. Scopolamine (Hyoscine)
                                                              1. Used for drying secretions
                                                                1. Contained in Antispasmodic Buscopan (+ Dipyrone metamizole - analgesic)
                                                                  1. Decreases GI contractions
                                                                  2. Antiemetic properties
                                                                Zusammenfassung anzeigen Zusammenfassung ausblenden

                                                                ähnlicher Inhalt

                                                                Drug absorption, distribution, metabolism and excretion
                                                                Hannah Tribe
                                                                Exam 1 Medications
                                                                tera_alise
                                                                Pharmacology
                                                                Justin Veazey
                                                                Monoamine pharmacology -Antidepressant drugs - Dr. Emma Robinson
                                                                Anna mph
                                                                Cognition and Dementia - Alzheimer's disease.
                                                                Anna mph
                                                                NCLEX REVIEW MODEL
                                                                Jamie R Pascual
                                                                General Anaesthetics Part 1 - Steve Fitzjohn
                                                                Anna mph
                                                                G- Couple Protein Receptors
                                                                Has Maj
                                                                Transcription
                                                                Has Maj
                                                                Organelles
                                                                Has Maj
                                                                Module 6 chapter 12.
                                                                Alannah Mendoza