Atipamezole
Atipamezole is a synthetic alpha-2 adrenergic receptor antagonist. It is primarily used in veterinary medicine to reverse the sedative and analgesic effects of medetomidine and dexmedetomidine in dogs and other animals. Atipamezole is marketed under the trade name Antisedan.
Pharmacology[edit | edit source]
Atipamezole works by competitively inhibiting the alpha-2 adrenergic receptors, which are the target of medetomidine and dexmedetomidine. By blocking these receptors, atipamezole effectively reverses the sedative and analgesic effects induced by these drugs. This makes it particularly useful in situations where rapid recovery from sedation is desired.
Uses in Veterinary Medicine[edit | edit source]
Atipamezole is commonly used in veterinary practices to reverse the effects of alpha-2 adrenergic agonists. It is administered intramuscularly and has a rapid onset of action, typically reversing sedation within minutes. The drug is particularly useful in emergency situations or when an animal needs to be quickly awakened for further treatment or discharge.
Side Effects[edit | edit source]
While atipamezole is generally well-tolerated, some animals may experience side effects such as vomiting, diarrhea, and hyperactivity. In rare cases, it can cause cardiovascular effects such as tachycardia and hypotension. It is important to monitor animals closely after administration.
Dosage and Administration[edit | edit source]
The dosage of atipamezole is typically calculated based on the amount of medetomidine or dexmedetomidine that was administered. The standard dose is five times the amount of medetomidine or dexmedetomidine on a per milligram basis. It is usually given as a single intramuscular injection.
Contraindications[edit | edit source]
Atipamezole should not be used in animals with known hypersensitivity to the drug. It is also contraindicated in animals with severe cardiovascular disease, as the rapid reversal of sedation can cause significant cardiovascular stress.
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References[edit | edit source]
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