Preanesthetic Medication
May 30, 2021
Estimated reading time: 1 min
Definition
Preanesthetic medication is the use of drugs to improve the intra operative status of patient and the postoperative recovery from anesthesia.
Aims​1​
- Decrease anxiety and produce sedation.
- Improve postoperative analgesia.
- Decrease secretions.
- Improve amnesia.
- Decrease PONV (Postoperative nausea and vomiting).
- Decrease acid secretion and postoperative eructations and acidity.
- Decrease chances of aspiration due to its role on decreasing secretions and antiemetic effect as well as decrease the injury from aspiration by decreasing the acidity.
- Preanesthetic drugs for the patients with specific disorders: Pheochromocytoma, patients with steroid dependence, patients with epilepsy or arrhythmias, etc.
Drugs used as preanesthetic medication.
- Alprazolam, midazolam or diazepam on the night before surgery or same day at early morning.
- Morphine/Voveran and related drugs for analgesia 1 hour before surgery
- Pantoprazole or Ranitidine for antacid effect about 1 hour before surgery
- Metoclopramide or ondansetron or palonosetron 1 hour before surgery
- Atropine or other anticholinergic drugs to decrease secretions, decrease laryngospasm, decrease choking, and decrease cardiac vagal stimulation and cardiac arrest
- Barbiturates and neuroleptics like chlorpromazine are also used as preanesthetic medication.
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