Morphine
Brand names,
Morphine
Analogs
Morphine
Brand Names Mixture
- Camphorated Opium Tincture (Benzoic Acid + Camphor + Morphine)
- Paregorique (Camphor + Morphine)
Morphine
Chemical_Formula
C17H19NO3
Morphine
RX_link
http://www.rxlist.com/cgi/generic/ms.htm
Morphine
fda sheet
Morphine
msds (material safety sheet)
Morphine
Synthesis Reference
Gates et al., J. Am. Chem. Soc. 74, 1109 (1952).
Morphine
Molecular Weight
285.338 g/mol
Morphine
Melting Point
255oC (sulfate salt)
Morphine
H2O Solubility
149 mg/L (60 mg/mL for sulfate salt)
Morphine
State
Solid
Morphine
LogP
1.224
Morphine
Dosage Forms
Capsule (sustained-release); Drops; Liquid; Solution; Suppository; Suppository (sustained-release); Syrup; Tablet; Tablet (extended-release); Tincture
Morphine
Indication
For the relief and treatment of severe pain.
Morphine
Pharmacology
Morphine is a narcotic pain management agent indicated for the relief of pain in patients who require opioid analgesics for more than a few days. Morphine interacts predominantly with the opioid mu-receptor. These mu-binding sites are discretely distributed in the human brain, with high densities in the posterior amygdala, hypothalamus, thalamus, nucleus caudatus, putamen, and certain cortical areas. They are also found on the terminal axons of primary afferents within laminae I and II (substantia gelatinosa) of the spinal cord and in the spinal nucleus of the trigeminal nerve. In clinical settings, morphine exerts its principal pharmacological effect on the central nervous system and gastrointestinal tract. Its primary actions of therapeutic value are analgesia and sedation. Morphine appears to increase the patient's tolerance for pain and to decrease discomfort, although the presence of the pain itself may still be recognized. In addition to analgesia, alterations in mood, euphoria and dysphoria, and drowsiness commonly occur. Opioids also produce respiratory depression by direct action on brain stem respiratory centers.
Morphine
Absorption
Bioavailability is approximately 30%.
Morphine
side effects and Toxicity
LD50 = 461 mg/kg (rat, oral), 600 mg/kg (mouse, oral). Human lethal dose by ingestion is 120-250 mg of morphine sulfate. Symptoms of overdose include cold, clammy skin, flaccid muscles, fluid in the lungs, lowered blood pressure, "pinpoint" or dilated pupils, sleepiness leading to stupor and coma, slowed breathing, and slow pulse rate.
Morphine
Patient Information
If clinically advisable, patients receiving ORAMORPH SR brand of morphine sulfate sustained release tablets,
should be given the following instructions by the physician:
- Morphine may produce psychological and/or physical dependence. For this reason, the dose of the drug should not
be increased without consulting a physician.
- Morphine may impair mental and/or physical ability required for the performance of potentially hazardous tasks
(e.g., driving, operating machinery).
- Morphine should not be taken with alcohol or other CNS de-pressants (sleep aids, tranquilizers) because
additive effects, including CNS depression, may occur. A physician should be consulted if other prescription and/or
over-the-counter medications are currently being used or are prescribed for future use.
- For women of childbearing potential, who become or are planning to become pregnant, a physician should be
consulted regarding analgesics and other drug use.
Storage: ORAMORPH SR Tablets should be stored in unopened containers at or below room temperature.
Caution: Federal law prohibits dispensing without prescription. Federal law prohibits the transfer of this
drug to any person other than the patient for whom it was prescribed.
Safety and Handling Instructions: ORAMORPH SR is supplied as tablets that pose little risk of direct
exposure to health care personnel and should be handled and disposed of in accordance with hospital policy. Patients
and their families should be instructed to dispose of ORAMORPH SR tablets, that are no longer needed, down the
toilet.
Morphine
Organisms Affected
Humans and other mammals