Drug Box 2 Flashcards
Sufentanil Name (generic and trade)
Sufenta
Sufentanil Classification
Opioid Agonist
Sufentanil Contraindications
Reduce the dose/caution use in elderly, hypovolemic, patients taking sedatives or narcotics, high risk surgical patients. Sufentanil crosses the placental
barrier; Can cause respiratory depression in neonate if used during labor
Sufentanil Dose and Route
Route: IV, IM, Epidural/Spinal
Induction: intravenous: 1 to 30 mcg/kg; infusion: 0.005 to 0.015 mcg/kg/min. Epidural: bolus: 25-50 mcg; infusion: 5 to 30 mcg/hr.
Sufentanil MOA
Opioids act as agonists at specific opioid receptors at presynaptic and postsynaptic sites in the central nervous system (CNS) (mainly the brainstem and spinal cord) as well as in the periphery. These same opioid receptors normally are activated by three endogenous peptide opioid receptor ligands known as enkephalins, endorphins, and dynorphins. Opioids mimic the actions of these endogenous ligands by binding to opioid receptors, resulting in activation of pain-modulating (antinociceptive) systems
Sufentanil Elimination
Half-Life; 6 Hours Hepatic/Renal
Sufentanil Onset
1-3 mins
Sufentanil Peak
5.6 min
Sufentanil Duration
dose dependant
Ketamine Name (generic and trade)
Ketalor
Ketamine Classification
phencyclidine (PCP) derivative: Non-barbiturate dissociative anesthetic: NMDA (N-Methyl-D-Aspartate) receptor antagonist
Ketamine Contraindications
patients with CAD (inotropic effect increases cardiac myocardial O2 requirements), patients with pulmonary HTN or increased ICP
Ketamine Dose and Route
Route: primarily IV can be given PO or IM
Adult: IV: sub anesthesia analgesic dose 0.2-0.5 mg/kg, Induction of anesthesia: 1-2mg/kg IV
IM: 4-8 mg/kg; continuous infusion: 1-2 mg/kg/hr
(Flood 5th edition pages: 186-193, 259-261, 595-596)
spinal (intrathecal) 5-50 mg in 3 ml of saline (better absorption if combined with epi to slow systemic absorption)
Pediatric: same as adult: continuous infusion: 1-2 mg/kg/hr; Induction dose: 1-2 mg/kg
Ketamine MOA
exact MOA is unknown; primarily a noncompetitive antagonist for NMDA receptors, also acts on opioid, monoaminergic, muscarinic and neuronal nicotinic Ach receptors.
Ketamine Elimination
metabolized in the liver - demethylation by P450 enzymes, <5% fecal excretion, primarily excreted by the kidneys
Ketamine Onset
30-60 seconds IV, 2-4 minutes IM
Ketamine Peak
1 minute IV and 5 minutes IM
Ketamine Duration
10-20 mins
Ketamine Misc
known for emergence delirium (adjunct benzo administration may prevent delirium); causes bronchodilation and may be useful as induction drug in patients with asthma: does not produce significant respiratory depression. It commonly causes nystagmus. Does NOT trigger malignant hyperthermia. Giving a sub anesthesia dose can prevent opioid tolerance. Dont give to PTSD
Supply: 500mg/10ml
Flumazenil Name (generic and trade)
Romazicon
Flumazenil Classification
competitive benzodiazepine-receptor antagonist
Flumazenil Contraindications
Flumazenil should be avoided in patients who take oral benzodiazepines on a chronic basis and those taking antiepileptic drugs, as they are at significant risk of having a withdrawal seizure following flumazenil administration
Flumazenil Dose and Route
Route - IV
Adults- 0.2–1.0 mg IV boluses titrated to the patient’s response; up to 3 mg per hour. After an initial response, patients may become resedated once the effects of flumazenil have subsided, in which case an IV infusion of flumazenil may be administered (0.1-0.4 mg/hr) until the benzodiazepine effects have resolved. Lack of patient response after 5mg suggests that benzodiazepines are not the cause of sedation. (Flood. Pg 182, ebook).
Peds- 0.01 mg/kg up to a maximum total dose of 1 mg at a rate not exceeding 0.2mg/min. The safety and efficacy of romazicon in the reversal of conscious sedation in pediatric patients below the age of 1 year have not been established.
Flumazenil MOA
competitively inhibits the activity at the benzodiazepine recognition site on the GABA/benzodiazepine receptor complex.
Flumazenil Elimination
Flumazenil is quickly metabolized by hydroxylation through hepatic microsomal enzymes to inactive metabolites with a half-life of about 1 hour
Flumazenil Onset
1-2 minutes
Flumazenil Peak
2-10 minutes
Flumazenil Duration
30-60 minutes
Flumazenil Misc
Do not use flumazenil until the effects of neuromuscular blockade have been fully reversed. Administer it in a large vein to minimize pain at the injection site. Monitor the patient for resedation. No patient response by 5 mg total dose suggests that benzodiazepines are not the cause of sedation or cardiopulmonary depression.
Narcan Name (generic and trade)
NALOXONE
Narcan Classification
Nonselective Opioid antagonist