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Related Concept Videos

Parenteral Anesthetics: Overview01:24

Parenteral Anesthetics: Overview

Intravenous anesthetics are drugs administered parenterally to induce anesthesia or sedation. Propofol is a widely used agent formulated as a 1% emulsion in soybean oil, glycerol, and egg phosphatide. It induces rapid anesthesia primarily due to its rapid distribution from the bloodstream to target tissues and is metabolized in the liver. However, it can cause significant pain on injection and hypertriglyceridemia. Fospropofol, a water-based prodrug of propofol, lacks these adverse effects.
Treatment for Pulmonary Arterial Hypertension: Prostacyclin Receptor Agonists01:23

Treatment for Pulmonary Arterial Hypertension: Prostacyclin Receptor Agonists

Prostacyclin receptor agonists are a class of therapeutic agents integral to managing pulmonary arterial hypertension (PAH). These drugs operate by mimicking the action of prostaglandin I2, or PGI2, a naturally occurring compound in the body.
These agonists bind to the IPR receptor situated on the plasma membrane of the pulmonary artery smooth muscle cells. This binding triggers a cascade of reactions known as the GS-AC-cAMP-PKA pathway. This pathway results in the relaxation of smooth muscle...
Sedatives and Hypnotics Drugs: Miscellaneous Agents01:17

Sedatives and Hypnotics Drugs: Miscellaneous Agents

Sedatives and hypnotics encompass a wide range of substances, each with its unique mechanism of action, uses, and potential adverse effects.
Melatonin congeners like ramelteon (Rozerem) and tasimelteon (Hetlioz) selectively bind to melatonin receptors (MT1 and MT2) and thus mimic the actions of melatonin, a hormone that regulates sleep-wake cycles. Tasimelteon is primarily used for non-24-hour sleep-wake disorder, common in blind patients. They are also used to treat conditions like insomnia...
Skeletal Muscle Relaxants: Adverse Effects01:21

Skeletal Muscle Relaxants: Adverse Effects

Skeletal muscle relaxants are widely used for muscle paralysis and relieving pain following any muscle injury or stiffness. However, depending on the drug type, they can have adverse effects that range from mild to severe. Usually, nondepolarizing neuromuscular blockers have minimal side effects. For example, drugs like d-tubocurarine, cisatracurium, and rocuronium cause hypotension, whereas drugs like baclofen, when stopped abruptly, can lead to the recurrence of spastic conditions.
Unlike...
Depolarizing Blockers: Pharmocokinetics01:19

Depolarizing Blockers: Pharmocokinetics

Depolarizing blockers are administered through intravenous injection. Succinylcholine is the most common choice of depolarizing blockers in emergency clinical practices. Although they have a rapid onset, they readily diffuse away from the motor end plate into the extracellular fluid. They are metabolized by enzymes such as liver butyrylcholinesterase and plasma pseudocholinesterases. This produces a short duration of action, typically 5-10 minutes long, unlike nondepolarizing blockers, which...
Local Anesthetics: Adverse Effects01:12

Local Anesthetics: Adverse Effects

While local anesthetics are generally safe and well-tolerated, they can occasionally cause adverse effects that vary in severity. Local anesthetics can induce toxicity at two distinct levels. They can either produce local effects through direct contact with the neural elements or be absorbed into the bloodstream from the injection site, leading to systemic effects.
Once absorbed into the systemic circulation, local anesthetics can affect the organs that depend on the functioning of sodium...

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Related Experiment Video

Updated: Jun 8, 2026

Guidelines for Elective Pediatric Fiberoptic Intubation
11:19

Guidelines for Elective Pediatric Fiberoptic Intubation

Published on: January 17, 2011

Propofol and priapism.

Subramanian Senthilkumaran1, Sweni Shah, Ganapathysubramanian

  • 1Sri Gokulam Hospitals and Research Institute, Salem, TamilNadu, India.

Indian Journal of Pharmacology
|October 8, 2010
PubMed
Summary
This summary is machine-generated.

Propofol can rarely cause priapism, a prolonged erection. Early intervention is crucial for low-flow priapism to prevent long-term complications.

Keywords:
Diisopropylphenolearly recognitionlow-flow priapismmechanismspropofolrechallenge

Related Experiment Videos

Last Updated: Jun 8, 2026

Guidelines for Elective Pediatric Fiberoptic Intubation
11:19

Guidelines for Elective Pediatric Fiberoptic Intubation

Published on: January 17, 2011

Area of Science:

  • Anesthesiology
  • Urology
  • Pharmacology

Background:

  • Propofol is a widely used anesthetic agent in India.
  • Priapism is a rare but serious adverse effect associated with propofol administration.
  • Awareness among healthcare providers is limited.

Purpose of the Study:

  • To report a rare case of propofol-induced priapism.
  • To raise awareness among medical practitioners regarding this adverse event.
  • To discuss potential mechanisms and management strategies.

Main Methods:

  • Case report of a 25-year-old male experiencing priapism post-propofol administration.
  • Confirmation of the association through rechallenge.
  • Review of probable pathophysiological mechanisms.

Main Results:

  • The patient developed priapism following propofol use for anesthesia.
  • The condition was confirmed to be associated with propofol via rechallenge.
  • Propofol-induced priapism is characterized as low-flow priapism.

Conclusions:

  • Propofol can induce priapism, necessitating clinical vigilance.
  • Early management of low-flow priapism is critical to avoid complications.
  • Further research into the mechanisms is warranted.