Pharma everything Flashcards
Cholinomimetic that only stimulates M1 - M3 receptors
Betanechol
Cholinomimetic that stimulates M and N receptors
Carbachol (carbon copy of Acetylcholine)
Cholinomimetic that stimulates M3 (2)
Pilocarpine, Cevimeline
Cholinomimetic that freely crosses BBB and is used to treat atropine overdose
Physostigmine
Pyridostigmine is used to treat:
Myasthenia Gravis
NMDA receptor blocker used for Alzheimer’s Dementia
Memantine
Antidote for the CNS manifestations of organophosphate poisoning
Atropine
MOA of this drug is that it regenerates active acetylcholinesterase
Pralidoxime
Muscarinic anticholinergics used to reduce tremors in Parkinson’s
Biperiden, Benztropine, Trihexyphenidyl
Muscarinic receptor antagonist used for COPD that does not cross the BBB
Glycopyrronium
Competitively blocks M3 receptors; Used for IBS
Dicyclomine, Hyoscyamine
Competitively blocks M3 receptors; reduces detrusor tone and is used for urge incontinence
Oxybutynin, Tolteradine
MOA of Ritodrine
Selectively activates B2 receptors
MOA of Midodrine
Selectively activates A2 receptors
Drugs that prevent NE and Dopamine reuptake (3)
TCAs, Cocaine, Atomoxetine
MOA of metyrosine
Inhibits tyrosine hydroxylase
Drugs that promote adrenergic hormone release (2)
Amphetamine
Tyramine
Alpha 2 agonists used for glaucoma (2)
MOA: Increases aqueous humor production
Apraclonidine, brimonidine
Sympathomimetic that is used for nasal vasoconstriction and appetite suppression but may precipitate hemorrhagic stroke (already withdrawn from the USA)
Phenylpropanolamine
Beta blockers with ISA (partial agonist activity)
Pindolol
Acebutolol
Beta blockers with no local anesthetic activity
Timolol
Betaxolol
Thiazide with vasodilator abilities but no diuretic action
Diazoxide
Antidote to rebound hypertension after clonidine intake
Phentolamine
Diuretic that can aggravate hyperammonemia among chronic liver disease patients
Acetazolamide
Avoid reserpine and guanethidine in patients with a history of:
Depression (suicidal ideations as a side effect)
MOA of diazoxide
increases membrane permeability to K+, which relaxes vascular muscle cells
(Also acts like this on pancreatic beta cells, which decreases insulin release)
Dihydropyridine that prevents vasospasm after subarachnoid hemorrhage
Nimodipine
D1 receptor agonist
Fenoldopam
Most hepatotoxic general inhalational anesthetic agent
Halothane
Most common adverse effects of methotrexate (2)
Nausea and mucosal ulcers
MOA of nesiritide
Synthetic form of BNP
MOA of milrinone
PDE inhibitor -> increases cAMP
MOA of sacubitril
Inhibits the enzyme neprilysin, which degrades ANP and BNP
Effect of Class I antiarrhythmics on the AP duration
IA
IB
IC?
IA: Prolongs AP
IB: Shortens AP
IC: No effect
Quinine reduces the clearance of:
Digoxin
DOC for ventricular arrhythmias post-MI
Lidocaine (Class IB)
Class 2 antiarrhythmics act on which phase of the action potential?
Phase 4
Class 3 anti arrhythmics act on which phase of the action potential?
Phase 3
This electrolyte derangement exacerbates toxicity of Class 1A antiarrhythmics
Hyperkalemia
Antihistamine used for serotonin syndrome
Cyproheptadine
Receptor for serotonin seen in the area postrema; mediates vomiting
5HT3
Antidote for ergotamine overdose
Nitroprusside
MOA of theophylline
Adenosine receptor antagonist and PDE3 inhibitor
Antidote for tPA activator
Aminocaproic acid
Tranexamic acid is contraindicated in this fatal disease:
DIC
MOA of Anakinra
IL-1 pathway inhibitor
Clearance of isoxazolyl penicillins
Biliary
3rd generation cephalosporins all have renal excretion except:
Ceftriaxone
Cefoperazone
All 3rd gen cephalosporins penetrate the BBB except
Cefoperazone
Cefixime
Organisms that are not covered by Gen 1-4 of Cephalosporins
LAME Listeria Atypicals MRSA Enterococci
Clavulanic acid is more active against this type of beta lactamase
Plasmid-encoded (Gonoccoci, Streptococci, E. coli, H. influenzae)
Bacitracin is limited to topical use due to:
Nephrotoxicity
This drug blocks the incorporation of D-ala into the pentapeptide side chain of the peptidoglycan
Cycloserine
Resistance to Clindamycin is due to:
Methylation of binding sites
Neuromuscular blockade from aminoglycoside use is reversible using:
Calcium gluconate, neostigmine
Fluoroquinolones enhance the toxicity of:
Methylxanthines
Inhibits bacterial protein synthesis by binding to the sigma subunit of RNA polymerase; Granted an orphan drug status for C. difficile
Fidaxomicin
Has the least effect of all azoles on hepatic enzymes
Fluconazole
Renal toxicity of Acyclovir
Crystalluria, interstitial nephritis
Antidote for acute and chronic arsenic poisoning
Dimercaprol
Antidote for arsine gas poisoning
Chelation has no value
Antidote for chronic inorganic mercury poisoning
Succimer and unithiol (Dimercaprol must NOT be used)
Abnormal sleep pattern that results from BZD use
Decreased REM sleep
Lorazepam is a ____-acting BZD
Intermediate
MOA of Etomidate
Modulates GABA-A receptors containing B3 subunits
An ultra-short acting barbiturate
Thiopental
Antibiotic which prevents the formation of n-acetyl muramic acid
Fosfomycin
Fatal reaction occurs when selegiline is used with:
Meperidine
Partial agonist at D3 receptors used for Parkinson’s that causes severe nausea. Trimethobenzamide is advised as pre-medication to prevent severe nausea
Apomorphine
Local anesthetic that can cause methemoglobinemia
Prilocaine
Effect of thiopental on ICP
Decreases ICP
Nondepolarizing neuromuscular blocker which can cause seizures due to conversion to laudanosine
Atracurium
Only antipsychotic with fatal overdose
Thioridazine
Only antipsychotic approved for use in schizophrenia in the youth and elderly
Risperidone
Least sedating atypical antipsychotic
Aripiprazole
Treatment for lithium overdose
Dialysis
Codeine is metabolized by _____ to morphine
CYP2D6
Meperidine, when given with ______ can lead to hyperpyrexic coma
MAO inhibitors
Fluvoxamine is approved only for:
OCD
MOA of amoxepine and maprotiline
Strong NE reuptake inhibitors and weak serotonin reuptake inhibitors
MOA of bupoprion
Inhibits neuronal reuptake of dopamine and NE
Tolerance does not develop for these SEs of morphine:
Miosis, constipation
Weak opioid agonist withdrawn due to fatal cardiotoxicity and is commonly used in suicides
Propoxyphene
Examples of mixed agonist-antagonists of opioid receptors
Nalbuphine, buprenorphine, butorphanol, pentazocine, levallorphan
Opioid antagonist used for alcohol, nicotine, and opioid dependence
Naltrexone
A dual-acting opioid agonist (weak u agonist, inhibits 5HT and NE reuptak)
Tramadol
Only opioid that does not cause miosis and biliary contraction
Meperidine
MOA of glipizide
Increases insulin secretion by closing ATP-sensitive K+ channels -> depolarization of beta cells of pancreas
MOA of pioglitazone
Binds to PPAR-a and PPAR-y -> increase tissue sensitivity
Rosiglitazone - PPAR-y only
MOA of rimonabant
selectively blocks cannabinoid-1 receptors -> reduces appetite (for obesity)
Cancer drugs selective for the M phase
Vinblastine, vincristine, paclitaxel
MOA of cetuximab
Binds to EGFR and prevents signalling