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Alfentanil

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Found in: 


Fentanyl

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Type/Reason added: 


Fentanyl analog, 

Opioid effects

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Relative Potency: 


analgesic potency:

72 times stronger than morphine, 10-20% potency of fentanyl (12)

Routes of Administration and Effects

Administration:

Alfentanil is primarily administered intravenously (IV), especially in clinical settings. It can also be used intramuscularly (IM).

Dosage and Effects:

Opioid Effects:

Produces strong analgesia, sedation, and euphoria. It is commonly used to induce rapid anesthesia, often in combination with other sedatives.

Adverse Effects:

Typical opioid side effects such as respiratory depression, bradycardia (slow heart rate), drowsiness, nausea, and vomiting. Its rapid action heightens the risk of sudden respiratory depression, especially in overdose situations.

Information Regarding the Substance

Physical Description:

Typically used in liquid form for IV administration in medical settings. It is clear and odorless.

Side Effects:

Common:

Sedation, nausea, vomiting, dizziness, and respiratory depression.

Severe:

Profound respiratory depression, bradycardia, hypotension (low blood pressure), muscle rigidity, and potentially fatal overdose.

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