Propofol and egg allergy are quietly related as one of the side effects. Allergic reactions to propofol on first exposure are usually because of the isopropyl groups that may act as epitopes and that are present in various medications andcosmetics. Allergic reactions to propofol upon re-exposure are usually because of the phenol molecule. Propofol and […]
Pentazocine agonist antagonist is supposedly capable of producing spinal level analgesia. However, it produces significant sedation, drowsiness. The drugs which are equidistant to either pure agonists or pure antagonists in the terms of their activity belong to this group, agonists at one receptor and antagonists at another. Two groups of synthetic compounds belong to this
The molecular mechanisms underlying the diverse actions remain unclear, although some of the midazolam mechanism of action and sites of action of benzodiazepines effects are known. Benzodiazepines appear to produce all their pharmacologic effects by facilitating the actions of gamma-aminobutyric acid (GABA), the principal inhibitory neurotransmitter in the CNS. Benzodiazepines do not activate the GABAA
At sub anesthetic doses, propofol anticonvulsant has been effectively used to suppress seizures during refractory status epilepticus, a mechanism, in part, attributed to the inhibition of neuronal sodium channels. It is effective in most patients, and the side effects are infrequent, of minor severity, and fully reversible. However, high doses of propofol may be necessary
Propofol at common clinical concentrations-is potent ventilatory depressant and therefore it is sometimes common with the name propofol respiratory depression . The Propofol respiratory depression of ventilation is dose dependent. After induction of anesthesia with propofol apnoea occurs in 25% to 35% of patients which may persist till 3 minutes. It reduces tidal volume (by
Despite the rapid clearance of propofol pharmacokinetics by metabolism, there is no evidence of impaired elimination in patients with cirrhosis of the liver. Chronic alcoholism does not change the propofol pharmacokinetics significantly. Extrahepatic elimination of propofol occurs during the anhepatic phase of orthotopic liver transplantation. Renal dysfunction does not influence the clearance of propofol. Patients
Ketamine interactions potentiates all non depolarizing muscle relaxants in a dose-dependent manner. Ketamine improves the intubating condition when used with rocuronium. Halothane anesthesia by decreasing uptake, distribution, redistribution and metabolism of ketamine produces significant prolongation of its pharmacologic action on the central nervous system. Ketamine administered in the presence of volatile anesthetics may result in
The pharmacodynamics of inhaled anesthetics is discussed here in detail. The action of inhalation agents are as follows: I. Pulmonary effects 2. Cardiovascular effects 3. Metabolism 4. Toxicity Pulmonary Effects: For pharmacodynamics of inhaled anesthetics , the pulmonary effects of inhalation agents are many and important as this is the portal of entry. There are
Pre anesthesia drugs and medicines is the term applied to the use of drugs prior to the administration of an anesthetic agent, with the objective of making anesthesia safer and more agreeable to the patient. The reasons for using pre anesthesia drugs are: For sedation, to reduce anxiety and apprehension without producing much drowsiness. To obtain an
Diazepam half life could be observed during rapid absorption from the gastrointestinal tract after oral administration, reaching peak concentrations in about 1 hour in adults and within 15 to 30 minutes in children. There is rapid uptake of diazepam into the brain, followed by redistribution to inactive tissue sites. The Vd of diazepam is large,
