Peripheral Nervous System Drugs – Veterinary Pharmacology (VSCT 214)

Vocabulary flashcards covering direct-acting and indirect-acting cholinergics, anticholinergics, adrenergic agents (natural and synthetic), and adrenergic antagonists as listed in the lecture notes.

Bethanechol

Direct-acting cholinergic that stimulates muscarinic receptors; helps with bladder and GI emptying.

Pilocarpine

Direct-acting cholinergic that reduces intraocular pressure.

Metoclopramide (Reglan)

Direct-acting agent that controls vomiting and promotes gastric emptying.

Edrophonium (Tensilon)

Indirect-acting cholinergic used to diagnose myasthenia gravis.

Neostigmine

Indirect-acting cholinergic; helps promote GI and bladder emptying; used to treat rumen and intestinal atony.

Physostigmine

Indirect-acting cholinergic; helps promote GI and bladder emptying; used to treat rumen and intestinal atony.

Pyridostigmine

Indirect-acting cholinergic; treatment of myasthenia gravis.

Atropine

Anticholinergic: Topical ophthalmic dilates pupils for exam or ocular pain relief; Injectable prevents/bradycardia with anesthesia, treats bradycardia, slows gut motility.

Glycopyrrolate

Anticholinergic similar to atropine but more potent with longer duration; often used in preanesthetic.

Pralidoxime

Anticholinergic that treats organophosphate toxicity by reactivating acetylcholinesterase.

Epinephrine

Natural adrenergic drug; nonselective stimulation of receptors to increase heart rate, cardiac output, and metabolism.

Norepinephrine

Natural adrenergic drug that stimulates sympathetic receptors.

Dopamine

Precursor to epinephrine and norepinephrine; treats shock, heart failure; increases renal perfusion.

Phenylephrine

Synthetic adrenergic drug; alpha-adrenergic stimulator and nasal vasoconstrictor.

Phenylpropanolamine (Proin)

Synthetic adrenergic drug; treats urinary incontinence in dogs.

Dobutamine

Synthetic adrenergic drug; beta-1 stimulator; short-term treatment of heart failure.

Albuterol

Synthetic adrenergic drug; beta stimulator; bronchodilator.

Acepromazine

Alpha-receptor blocking drug; tranquilizer that causes vasodilation.

Prazosin

Alpha-receptor blocking drug; hypotensive agent used for urethral spasm in cats.

Yohimbine

Alpha-receptor blocking drug; antidote for xylazine.

Atipamezole (Antisedan)

Alpha-receptor blocking drug; reversal agent for dexmedetomidine (Dexdomitor).