PHARM Flashcards
MOA: Blocks Na channels, State dependent- best in rapidly firing neurons
(combined with vasoconstrictors like Epi)
ADE: Arrhythmias, Cardiotoxicity
Local Anesthetics (indicated for minor procedures, and epidurals) **infected tissues need higher doses
MOA: Local anesthetic with 1 “I” in name, blocks NA channels
ADE: prone to causing allergic rxns, arrhythmias
Esters “cocaine, procaine”
MOA: Local anesthetic with 2 “I” in name, blocks NA channels
ADE: prone to LIVER FAILURE (metabolized in liver), arrhythmias, cardiotoxicity
Amides “Bupivacaine, lidocaine”
Local anesthetic that blocks Na channels, Class 1B antiarrhythmic, and use for ventricular dyrhythmias
ADE: “tingling”, respiratory depression, fatigue/drowsy, seizures
Lidocaine (Amide)
-Unknown Mechanism, act on GABA receptors
“HEISM” -HALOTHANE, ENFLURANE, ISOFLURANE, SEVOFLURANE, METHOXYFLURANE, Nitrous Oxide
ADE: resp depression, myocardial depression, bradycardia/hypotension, hepatotoxicity, nephrotoxicity, malignant hyperthermia, expansion of trapped gas
Inhaled Anesthetics
-Halothane: cause hepatotoxicity
-Enflurane: cause seizures
-Methoxyflurane: cause nephrotoxicity
-Nitric oxide: cause exp of trapped gas
-MOA: potentates GABA-A, leads to rapid anesthesia induction
Propofol (IV anesthetic)
-NMDA receptor antagonist (Arylcyclohexylamines), PCP analogs that block effects of glutamic acid at NMDA receptors
ADE: can lead to dissociative amnesia, hallucinations
Ketamine (IV anesthetic)
-Benzo Receptor Antagonist
MOA: reverses benzos via competitive inhibit of the benzo binding site on GABA receptor
ADE: seizures, intensive monitoring is necessary
Flumazenil (Benzo Receptor Antag)
-MOA: increase GABA
ADE: HYPOtension, respiratory depress, confusion, coma, drowsiness
TX: BY FLUMAZENIL
Benzo’s (Midazolam) -zepam/zolam
can be IV anesthetic
MOA: INCREASE Chloride Channel Opening, DECREASING neuron firing
-ultra short acting, IV anesthesia induction, short surgical procedures, *DOES NOT PROVIDE ANALGESIA (just LOC)
-TX: anxiety, seizures
ADE: resp/cardio depression
Barbituates (Thiopental) IV anesthetic
- Gq protein coupled receptor, activates phospholipase C (PIP2–> DAG and IP3)
-DAG–> protein kinase C
-IP3–> phosphorylation
Leads to vasoconstriction, inc BP, pupillary dilator contraction, intestine/bladder sphincter contraction, in smooth muscle, URINARY RETENTION
Alpha 1 Receptor ***EPI PENS
-Gi protein coupled receptor, inhibit CAMP from ATP
-VASOCONSTRICT
-DECREASE sympathetic outflow (NE), insulin release in pancreas, lipolysis in adipose, aqueous humor production (treats glaucoma)
-INCREASE platelet aggregation
Alpha 2 Receptor (Brimonidine) tx: glaucoma
-Gs protein coupled receptor, stimulate adenylate cyclase to activate CAMP pathway–> protein Kinase A
-INCREASE HR/CO, contractility, renin release, lipolysis
Beta 1 Receptor
-Gs protein coupled receptor, stimulate adenylate cyclase to activate CAMP pathway–> protein Kinase A
-VASOLDILATE
-INCREASE CO/contractility/HR, insulin, lipolysis, aqueous humor production in eye, uterus relaxation, RELAX ciliary muscle, bronchodilator (tx asthma)
Beta 2 Receptor tx: asthma/stop early labor
-Cytochrome p450 inhibitors
-Quinidine, Ciprofloxacin, Isoniazid, Grapefruit juice, erythromycin, indinavir, cimetidine, sulfonamides, ketoconazole, amiodarone, Acute alc use
-cytochrome p450 inducers
**be careful taking birth control, can stop ur BC from working or other medications the patient is on
-Griseofulvin, Phenytoin, Carbamazepine, Rifampin, Barbituates, Chronic Alc Use, St. John’s Wort
-Class 1 Antiarrhythmic, fast inward NA currents
ADE: cinchonism, lupus like syndrome
Quinidine
End in “Navir”
-HIV drugs
-Flouroquinolone
-USED FOR GRAM NEG RODS of Urinaty/GI tracts
MOA: interferes with TOP II
-Ciprofloxacin (fluoroquinolone)
-MOA: decreases synthesis of MYCOLIC ACIDS, key components of cell wall of Mycobacterium TB
(only mono therapy prophylaxis against TB)
Isoniazid
-USED FOR B. PERTUSSIS, LEGIONELLA, MYCOPLASMA PNEUMO
-MOA: inhibits protein synthesis by binding to 23S RNA of 50S ribosomal subunit, blocking translocation
Erythromycin (macrolide)
MOA: HIV protease inhibitor that is used as antiretroviral therapy
TX: HIV/AIDS
Indinavir
MOA: Histamine H2 recetor ANTAG
TX: heartburn, decreases stomach acid production
Cimetidine
MOA: INHIBIT fungal ergol sterol synthesis
Tx: systemic mycoses
Ketoconazole