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Z - Pharmacology
First Aid - Pharm 4
Question | Answer |
---|---|
which anticholinesterase is extremely short acting | Edrophonium |
Cholinesterase inhibitor poisoning;;symps | DUMBBEL ASS.;;Diarrhea, Urination, Miosis, ;Bronchospasm, Bradycardia, Excitation of skeletal ;muscle and CNS, Lacrimation, Abdominal cramping, Sweating, and Salivation |
Cholinesterase inhibitor poisoning;;Tx | Atropine (muscarinic antagonist) plus pralidoxime |
chemical antagonist used to regenerate active cholinesterase | pralidoxime |
pralidoxime;;uses and mech | Cholinesterase inhibitor poisoning;;chemical antagonist used to regenerate active cholinesterase |
Parathion | organophosphate |
organophosphate toxicity mech | Irreversible Cholinesterase inhibitor poisoning |
Atropine, ;;mech | Muscarinic antagonist |
Benztropine ;;mech | Muscarinic antagonist |
Scopolamine ;;mech | Muscarinic antagonist |
Ipratropium ;;mech | Muscarinic antagonist |
Methscopolamine, ;oxybutin, ;glycopyrrolate ;;mech | Muscarinic antagonist |
Atropine;;clinical use | Produce mydriasis and cycloplegia |
Benztropine ;;clinical use | Parkinson’s disease |
Scopolamine ;;clinical use | Motion sickness |
Ipratropium ;;clinical use | Asthma, COPD |
Methscopolamine, ;oxybutin, ;glycopyrrolate ;;clinical use | Reduce urgency in mild cystitis and reduce bladder spasms |
Glaucoma drugs mech and side effects;;Epinephrine | ↑ outflow of aqueous humor ;;Mydriasis, stinging; do not use;in closed-angle glaucoma |
Glaucoma drugs mech and side effects;;Brimonidine | ↓ aqueous humor synthesis ;;No pupillary or vision changes |
Glaucoma drugs mech and side effects;;β-blockers | ↓ aqueous humor secretion ;;No pupillary or vision changes |
Glaucoma drugs mech and side effects;;Acetazolamide | ↓ aqueous humor secretion due to ;↓ HCO3− (via inhibition of carbonic anhydrase);;No pupillary or vision changes |
Glaucoma drugs mech and side effects;;Cholinomimetics | ↑ outflow of aqueous humor; contract ciliary muscle and open trabecular meshwork;;;Miosis, cyclospasm |
Glaucoma drugs mech and side effects;;Latanoprost (PGF2α) | ↑ outflow of aqueous humor;;Darkens color of iris (browning) |
which glaucoma drug ↑ outflow of aqueous humor | Epinephrine;;Cholinomimetics;;Prostaglandin (Latanoprost ;(PGF2α)) |
which glaucoma drug ↓ aqueous humor synthesis | Brimonidine |
which glaucoma drug ↓ aqueous humor secretion | β-blockers: Timolol, betaxolol, ;carteolol;;Diuretics: Acetazolamide |
which glaucoma drug causes Mydriasis, stinging; do not use;in closed-angle glaucoma | Epinephrine |
which glaucoma drug causes Miosis, cyclospasm | Cholinomimetics |
which glaucoma drug causes Darkens color of iris (browning) | Prostaglandin: Latanoprost ;(PGF2α) |
Atropine effects | dilates pupils and Blocks SLUD: ;↓Salivation;↓Lacrimation;↓Urination;↓Defecation |
Atropine Toxicity | Hot as a hare;Dry as a bone;Red as a beet;Blind as a bat;Mad as a hatter |
Can cause acute angle-closure glaucoma in elderly, urinary retention in men with prostatic hypertrophy, and hyperthermia ;in infants. | Atropine |
Hexamethonium;;Mechanism | Nicotinic ACh receptor antagonist. Ganglionic blocker. |
Hexamethonium;;Clinical use | Ganglionic blocker. Used in experimental models to prevent vagal reflex responses to ;changes in blood pressure– –e.g., prevents reflex bradycardia caused by NE. |
prevents reflex bradycardia caused by NE | Hexamethonium |
Used in experimental models to prevent vagal reflex responses to ;changes in blood pressure | Hexamethonium |
selectivity for Sympathomimetics;;Epinephrine | α1, α2, β1, β2, low doses selective for β1 |
selectivity for Sympathomimetics;;NE | α1, α2 >β1 |
selectivity for Sympathomimetics;;;Isoproterenol | β1 =β2 |
selectivity for;Sympathomimetics;;Dopamine | D1 = D2 >β >α |
selectivity for Sympathomimetics;;Dobutamine | β1 >β2 |
Mechanism for Sympathomimetics;;Amphetamine | Indirect general agonist, releases stored ;catecholamines |
Mechanism for Sympathomimetics;;Ephedrine | Indirect general agonist, releases stored ;catecholamines |
Mechanism forSympathomimetics;;Cocaine | Indirect general agonist, uptake inhibitor |
Mechanism for Sympathomimetics;;Clonidine, α-methyldopa | Centrally acting α-agonist, ↓ central ;adrenergic outflow |