Alfentanil

Alfentanil (R-39209, trade name Alfenta, Rapifen in Australia) is a potent but short-acting synthetic opioid analgesic drug, used for anaesthesia in surgery. It is an analogue of fentanyl with around 1/4 to 1/10 the potency of fentanyl and around 1/3 of the duration of action, but with an onset of effects 4x faster than fentanyl. Alfentanil has a pKa of approximately 6.5, which leads to a very high proportion of the drug being uncharged at physiologic pH. This unique characteristic is responsible for its rapid onset. It is an agonist at mu opioid receptors.

单词	Alfentanil Hydrochloride
释义	Alfentanil Hydrochloride 英语百科 Alfentanil Alfentanil (R-39209, trade name Alfenta, Rapifen in Australia) is a potent but short-acting synthetic opioid analgesic drug, used for anaesthesia in surgery. It is an analogue of fentanyl with around 1/4 to 1/10 the potency of fentanyl and around 1/3 of the duration of action, but with an onset of effects 4x faster than fentanyl. Alfentanil has a pKa of approximately 6.5, which leads to a very high proportion of the drug being uncharged at physiologic pH. This unique characteristic is responsible for its rapid onset. It is an agonist at mu opioid receptors.
随便看	center of affinity的意思 Center of a group的意思 center of air pressure的意思 center of a lattice的意思 center of algebra的意思 center of a Lie algebra的意思 center of amusement的意思 Center of an algebra的意思 center of analysor的意思 center of an area的意思 center of a pencil的意思 center of a quadratic complex的意思 center of a quadric的意思 center of arch的意思 Center of area的意思 centerofarea function的意思 Center of a ring的意思 center of a sample的意思 center of asian studies的意思 center of asymmetry的意思 center of asymptote的意思 center of attack的意思 Center Of Attention的意思 center of attraction的意思 Center of Balance的意思

Alfentanil Hydrochloride

Alfentanil