Butorphanol Tartrate
Brand names,
Butorphanol Tartrate
Analogs
Butorphanol Tartrate
Brand Names Mixture
Butorphanol Tartrate
Chemical_Formula
C21H29NO2
Butorphanol Tartrate
RX_link
http://www.rxlist.com/cgi/generic2/butor.htm
Butorphanol Tartrate
fda sheet
Butorphanol Tartrate
msds (material safety sheet)
Butorphanol Tartrate
Synthesis Reference
No information avaliable
Butorphanol Tartrate
Molecular Weight
327.461 g/mol
Butorphanol Tartrate
Melting Point
No information avaliable
Butorphanol Tartrate
H2O Solubility
Moderate
Butorphanol Tartrate
State
Solid
Butorphanol Tartrate
LogP
4.176
Butorphanol Tartrate
Dosage Forms
Drops; Drug premix; Gel; Globules; Liquid; Powder for solution; Solution; Spray; Tablet
Butorphanol Tartrate
Indication
For the management of pain when the use of an opioid analgesic is appropriate. Also indicated as a preoperative or preanesthetic medication, as a supplement to balanced anesthesia, and for the relief of pain during labor.
Butorphanol Tartrate
Pharmacology
Butorphanol is a synthetic opioid agonist-antagonist analgesic with a pharmacological and therapeutic profile that has been well established since its launch as a parenteral formulation in 1978. The introduction of a transnasal formulation of butorphanol represents a new and noninvasive presentation of an analgesic for moderate to severe pain. This route of administration bypasses the gastrointestinal tract, and this is an advantage for a drug such as butorphanol that undergoes significant first-pass metabolism after oral administration. The onset of action and systemic bioavailability of butorphanol following transnasal delivery are similar to those after parenteral administration. Butorphanol blocks pain impulses at specific sites in the brain and spinal cord.
Butorphanol Tartrate
Absorption
Rapidly absorbed after intramuscular injection and peak plasma levels are reached in 20-40 minutes. The absolute bioavailability is 60-70% and is unchanged in patients with allergic rhinitis. In patients using a nasal vasoconstrictor (oxymetazoline) the fraction of the dose absorbed was unchanged, but the rate of absorption was slowed. Oral bioavailability is only 5-17% because of extensive first-pass metabolism.
Butorphanol Tartrate
side effects and Toxicity
The clinical manifestations of butorphanol overdose are those of opioid drugs in general. The most serious symptoms are hypoventilation, cardiovascular insufficiency, coma, and death.
Butorphanol Tartrate
Patient Information
Butorphanol Tartrate
Organisms Affected
Humans and other mammals