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Home > Drugs > Treatments > Anesthesia

Medications for Anesthesia

Anesthesia is the practice of administering medicines that block the feeling of pain or other sensations to allow medical or surgical operations to take place without causing undue distress or discomfort. There are various types of anesthesia, and most are given by inhalation (breathing in through the nose and mouth) or injection. The medication used to induce anesthesia is called an anesthetic.

The main types of anesthesia include:

  • Procedural sedation: Commonly used outside of an operating room setting, procedural sedation provides a depressed level of consciousness so that a patient can tolerate unpleasant procedures without affecting cardiovascular function and without the need for airway management (help with breathing)
  • Conscious sedation: Conscious sedation reduces a patient's level of consciousness to a certain extent while still maintaining a certain level of awareness so that they can respond purposefully to verbal commands or light stimulation by touch. Often misused to describe other levels of sedation
  • Analgesia: Uses medications that act locally (means in a small defined area) to reduce or eliminate pain in that area
  • Regional anesthesia: involves an injection of a local anesthetic in the vicinity of major nerve bundles that supply a particular body area, for example, epidurals (into the spine) for childbirth, nerve blocks for dental procedures. May be used on its own or combined with general anesthesia
  • General anesthesia: Uses a combination of intravenous and inhaled gases to produce a sleep-like state where the patient is unconscious and will not respond to any stimuli, including pain. This may cause changes in breathing and circulation which will need to be monitored.

Anesthesia is usually administered before an operation by an anesthesiologist or anesthetist. How anesthesia works is still only partially understood.

In most circumstances, anesthesia is very safe, even people who are quite seriously ill can be safely anesthetized. It is often the surgery that carries the biggest risk. However, complications after anesthesia may include an increased risk of a heart attack, pneumonia or stroke.
These outcomes can include postoperative confusion, heart attack, pneumonia, and stroke.

Symptoms of Anesthesia

Symptoms depend on the type of anesthesia used.

Local or regional anesthesia typically results in numbness or tingling in an area supplied by the nerves and moving that region of the body may become difficult or impossible.

General anesthesia causes a loss of consciousness which means you will be unable to feel pain and will not be aware of anything that is happening. Rarely, some people may experience unintended intraoperative awareness.

Side Effects of Anesthesia

Side effects of local anesthesia may include:

  • Pain around the injection site
  • Prolonged numbness that takes a few hours to wear off
  • Dribbling or difficulty speaking if anesthesia was in the mouth.

Side effects of general anesthesia include:

  • Bruising or soreness from the IV drip
  • Dizziness
  • Feeling cold, shivering
  • Nausea and vomiting
  • Sore throat (from the breathing tube)
  • Temporary memory loss and confusion.

Drugs used to treat Anesthesia

Name Drug Class Updated
Butorphanol (nasal) Opioids (narcotic analgesics) 16-Aug-2023
Butorphanol (injection) Opioids (narcotic analgesics) 16-Aug-2023
Cisatracurium Neuromuscular blocking agents 16-Aug-2023
Methohexital General anesthetics 16-Aug-2023
Glycopyrrolate (inhalation) Anticholinergic bronchodilators 15-Aug-2023
Lidocaine topical Topical anesthetics 14-Aug-2023
Lidocaine injection Group I antiarrhythmics 14-Aug-2023
Lidocaine and prilocaine topical Topical anesthetics 14-Aug-2023
Fentanyl transdermal (skin patch) Opioids (narcotic analgesics) 14-Aug-2023
Fentanyl (nasal) Opioids (narcotic analgesics) 14-Aug-2023
Fentanyl citrate (oral transmucosal) Opioids (narcotic analgesics) 14-Aug-2023
Fentanyl (buccal/sublingual) Opioids (narcotic analgesics) 14-Aug-2023
Vecuronium bromide Neuromuscular blocking agents 14-Aug-2023
Vecuronium Neuromuscular blocking agents 14-Aug-2023
Nalbuphine Opioids (narcotic analgesics) 14-Aug-2023
Benzocaine topical Topical anesthetics 13-Aug-2023
Benzocaine (eent) (monograph) Drugs 13-Aug-2023
Articaine and epinephrine Local injectable anesthetics 13-Aug-2023
Articaine (monograph) Drugs 13-Aug-2023
Tetracaine injection Local injectable anesthetics 12-Aug-2023
Rocuronium Neuromuscular blocking agents 12-Aug-2023
Remimazolam Benzodiazepines 12-Aug-2023
Remifentanil Opioids (narcotic analgesics) 12-Aug-2023
Propofol General anesthetics 11-Aug-2023
Lidocaine (systemic) (monograph) Drugs 11-Aug-2023
Lidocaine (local) (monograph) Drugs 11-Aug-2023
Propoven General anesthetics 05-Aug-2023
Levsin Anticholinergics / antispasmodics 05-Aug-2023
Livixil pak Topical anesthetics 21-Aug-2023
Priloheal plus 30 Topical anesthetics 21-Aug-2023
Realheal-i Topical anesthetics 21-Aug-2023
Valladerm-90 Topical anesthetics 21-Aug-2023
Oraqix Topical anesthetics 05-Aug-2023
Anodyne lpt Topical anesthetics 21-Aug-2023
Lidocaine viscous Topical anesthetics 05-Aug-2023
Lidamantle Topical anesthetics 05-Aug-2023
Diprivan General anesthetics 04-Aug-2023
Zingo Topical anesthetics 14-Jul-2023
Zemuron Neuromuscular blocking agents 14-Jul-2023
Xylocaine hcl Group I antiarrhythmics 14-Jul-2023
Xylocaine-mpf Group I antiarrhythmics 14-Jul-2023
Sufentanil (monograph) Drugs 22-Aug-2023
Ultiva Opioids (narcotic analgesics) 14-Jul-2023
Ultane General anesthetics 14-Jul-2023
Septocaine Local injectable anesthetics 14-Jul-2023
Regenecare ha spray Topical anesthetics 14-Jul-2023
Butorphanol (monograph) Drugs 24-Aug-2023
Nimbex Neuromuscular blocking agents 13-Jul-2023
Medi-quik spray Topical anesthetics 13-Jul-2023
Lusedra General anesthetics 13-Jul-2023
Emla cream Topical anesthetics 13-Jul-2023
Byfavo Benzodiazepines 13-Jul-2023
Brevital sodium General anesthetics 13-Jul-2023
Ketamine General anesthetics 11-Jul-2023
Ketalar General anesthetics 11-Jul-2023
Hyoscyamine Anticholinergics / antispasmodics 10-Jul-2023
Glycopyrrolate Anticholinergic bronchodilators 10-Jul-2023
Fentanyl Opioids (narcotic analgesics) 10-Jul-2023
Etomidate (monograph) Drugs 22-Sep-2023
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