Preanesthetic agent
Encyclopedia
A preanesthetic agent is a drug
that is given before the administration of an anesthetic.
These are the drugs used prior to the administration of an anesthetic agent, with the important object of making anesthesia safe and more agreeable to the patient. The reasons for such medication are
1) For sedation, to reduce anxiety and apprehension
2) To obtain an additive or synergistic effect so that induction could be smooth and rapid
3) To counteract certain adverse effects of the anesthetic drug
4) to relieve from pain
common drugs used are
1) Opioid analgesic : morphine , pethidine and buprenorphine.
Drug
A drug, broadly speaking, is any substance that, when absorbed into the body of a living organism, alters normal bodily function. There is no single, precise definition, as there are different meanings in drug control law, government regulations, medicine, and colloquial usage.In pharmacology, a...
that is given before the administration of an anesthetic.
Examples
Examples of preanesthetic agents are:- AcepromazineAcepromazineAcepromazine or acetylpromazine is a phenothiazine derivative antipsychotic drug. It was first used in humans in the 1950s, but is now little used in humans...
- atropineAtropineAtropine is a naturally occurring tropane alkaloid extracted from deadly nightshade , Jimson weed , mandrake and other plants of the family Solanaceae. It is a secondary metabolite of these plants and serves as a drug with a wide variety of effects...
- diazepamDiazepamDiazepam , first marketed as Valium by Hoffmann-La Roche is a benzodiazepine drug. Diazepam is also marketed in Australia as Antenex. It is commonly used for treating anxiety, insomnia, seizures including status epilepticus, muscle spasms , restless legs syndrome, alcohol withdrawal,...
- ScopolamineScopolamineScopolamine, also known as levo-duboisine, and hyoscine, is a tropane alkaloid drug with muscarinic antagonist effects. It is among the secondary metabolites of plants from Solanaceae family of plants, such as henbane, jimson weed and Angel's Trumpets , and corkwood...
These are the drugs used prior to the administration of an anesthetic agent, with the important object of making anesthesia safe and more agreeable to the patient. The reasons for such medication are
1) For sedation, to reduce anxiety and apprehension
2) To obtain an additive or synergistic effect so that induction could be smooth and rapid
3) To counteract certain adverse effects of the anesthetic drug
4) to relieve from pain
common drugs used are
1) Opioid analgesic : morphine , pethidine and buprenorphine.