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Route of Administration: Alphaprodine is typically administered via intravenous
(IV) injection or intramuscular (IM) injection. It is a synthetic opioid analgesic
medication used primarily for pain management.
Alphaprodine, an opioid analgesic, is administered through various routes
for its analgesic effects. The specific routes of administration for alphaprodine are
detailed in the search results provided.Alphaprodine hydrochloride, sold under
brand names like Nisentil, is commonly administered via different routes for its
analgesic effects. According to the search results, alphaprodine is used in
anesthesia and can be administered intravenously. Additionally, the drug is
available in hydrochloride form and can be administered through various routes
such as intravenous, subcutaneous, and potentially other routes depending on the
medical context.The route of administration for alphaprodine is crucial in
determining its onset of action, duration of effects, and overall efficacy in providing
pain relief during medical procedures. The intravenous route is particularly
common for drugs like alphaprodine used in anesthesia to ensure rapid onset and
precise control over the dosage administered.
Pharmacological Action: Alphaprodine, a synthetic opioid analgesic, acts
primarily by binding to opioid receptors in the central nervous system, particularly
the mu-opioid receptors. This binding results in various pharmacological actions
including analgesia (pain relief), sedation, respiratory depression, and cough
suppression. Additionally, alphaprodine can also cause euphoria and physical
dependence when used over an extended period.
Analgesic Properties: Alphaprodine is classified as an opioid analgesic,
chemically related to meperidine, with a rapid onset of action and shorter
duration compared to other opioids. It has been used in obstetrics, pre-
operative medication, minor surgical procedures, and dental procedures
for its analgesic effects
Potency and Duration: Alphaprodine has a duration of action ranging from
1 to 2 hours, with 40 to 60 mg being equivalent to 10 mg of subcutaneous
morphine. Testing in rats showed that alphaprodine is approximately 97%
as potent as morphine via the subcutaneous route
Side Effects: Like other opioids, alphaprodine can produce side effects
such as excessive itching, nausea, vomiting, and potentially serious
respiratory depression that can lead to life-threatening respiratory
arrest. Respiratory depression can occur even at normal therapeutic doses
of alphaprodine.
Comparison with Betaprodine: Alphaprodine and betaprodine are
racemates with optical isomerism. Betaprodine is around five times more
potent than alphaprodine but is metabolized more rapidly. Alphaprodine
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has similar activity to pethidine but with a quicker onset and shorter
duration of effects.
Regulation: Alphaprodine has a DEA ACSCN of 9010 and a manufacturing
quota. It is commonly used for pain relief during childbirth, dentistry, and
minor surgical procedures due to its pharmacological properties.
Analysis:
Analyzing alphaprodine involves a combination of various analytical
techniques to determine its identity, purity, concentration, and other relevant
characteristics. Here's a general outline of the steps involved in the analysis of
alphaprodine:
Sample Preparation:
Obtain a representative sample of the alphaprodine-containing material
(e.g., pharmaceutical formulation, biological sample).
If necessary, prepare the sample according to the specific requirements of
the chosen analytical method (e.g., extraction, dilution, purification).
Identification:
Perform preliminary identification using physical characteristics (e.g.,
appearance, melting point) and spectroscopic techniques (e.g., IR
spectroscopy, NMR spectroscopy) to confirm the presence of
alphaprodine.
Confirm the identity of alphaprodine using chromatographic techniques
(e.g., GC, HPLC) coupled with mass spectrometry (MS) for accurate
identification based on retention time and mass spectral data.
Quantification:
Determine the concentration of alphaprodine in the sample using
validated quantitative methods such as calibration curves based on known
standards or internal standards.
Employ chromatographic techniques (e.g., HPLC, GC) with suitable
detectors (e.g., UV, MS) for accurate quantification of alphaprodine.
Purity Assessment:
Assess the purity of alphaprodine by analyzing impurities, degradation
products, and related substances using chromatographic techniques (e.g.,
HPLC, GC) with appropriate separation conditions and detectors.
Calculate the percentage purity of alphaprodine based on the peak areas
or concentrations of the main compound and impurities.
Validation and Quality Control:
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Validate the analytical methods used for alphaprodine analysis according
to regulatory guidelines and standards to ensure reliability, accuracy, and
precision.
Implement quality control measures to monitor and maintain the
performance of analytical instruments, reagents, and procedures.
Reporting and Interpretation:
Compile the analytical data obtained during the analysis of alphaprodine,
including identification results, quantification data, purity assessment, and
any relevant findings.
Interpret the results in the context of the intended application or
regulatory requirements, considering factors such as pharmacopeial
standards, safety, and efficacy.
Documentation and Compliance:
Document all aspects of the alphaprodine analysis, including sample
preparation, analytical procedures, instrument settings, results, and
interpretations.
Ensure compliance with applicable regulations, guidelines, and quality
management systems for pharmaceutical, forensic, or research
applications.
A) Physical Method: Physical methods refer to techniques or methodologies used
to analyze substances based on their physical properties rather than chemical
interactions. In the context of alphaprodine or any other substance, physical
methods for analysis may include:
Melting Point Determination: This method involves measuring the
temperature at which a substance changes from a solid to a liquid state,
known as its melting point. Alphaprodine has a specific melting point, and
deviations from this point can indicate impurities or different forms of the
substance.
Boiling Point Determination: Similar to melting point determination, this
method involves measuring the temperature at which a substance changes
from a liquid to a vapor state, known as its boiling point. Alphaprodine has
a specific boiling point that can be used for identification.
Solubility Testing: Solubility testing involves determining the ability of a
substance to dissolve in different solvents under specific conditions.
Alphaprodine has characteristic solubility properties that can aid in its
identification.
Physical Appearance: Visual inspection of the physical characteristics of
alphaprodine, such as color, odor, texture, and crystal morphology, can
provide preliminary information about its identity and purity.
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Density Measurement: Density measurement involves determining the
mass per unit volume of a substance. Alphaprodine has a specific density
that can be measured and compared against reference values.
Optical Rotation: Optical rotation measurement involves analyzing the
rotation of polarized light passing through a substance. Alphaprodine may
exhibit optical activity, which can be measured using a polarimeter.
B) Chemical method: Chemical methods refer to techniques or methodologies
used to analyze substances based on their chemical properties or reactions. In the
context of alphaprodine or any other substance, chemical methods for analysis
may include:
Spectroscopic Methods:
Infrared Spectroscopy (IR): This method analyzes the absorption of
infrared radiation by molecules. It can provide information about
functional groups present in alphaprodine.
Nuclear Magnetic Resonance (NMR) Spectroscopy: NMR spectroscopy
detects the magnetic properties of atomic nuclei in a molecule. It can
provide detailed structural information about alphaprodine.
Mass Spectrometry (MS): MS measures the mass-to-charge ratio of ions. It
can be used for the identification and quantification of alphaprodine by
analyzing its fragmentation pattern.
Chromatographic Methods:
Gas Chromatography (GC): GC separates and analyzes volatile substances.
It can be coupled with mass spectrometry for the identification and
quantification of alphaprodine.
High-Performance Liquid Chromatography (HPLC): HPLC separates and
analyzes compounds based on their interactions with a stationary phase
and mobile phase. It is often used for the quantification of alphaprodine in
pharmaceutical formulations or biological samples.
Titration Methods:
Acid-Base Titration: This method involves the titration of alphaprodine
with a standardized acid or base solution to determine its acid-base
properties or purity.
Complexometric Titration: Complexometric titration involves the titration
of alphaprodine with a chelating agent to determine the concentration of
specific functional groups.
Colorimetric Methods:
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Specific Reagent Tests: Chemical reagents can react with alphaprodine to
produce color changes or precipitates, aiding in its qualitative
identification.
UV-Vis Spectrophotometry: UV-Vis spectrophotometry measures the
absorption of ultraviolet and visible light by a substance. It can be used for
quantitative analysis of alphaprodine in solution.
Electrochemical Methods:
Voltammetry: Voltammetry measures the current produced by the
oxidation or reduction of alphaprodine at an electrode surface. It can be
used for quantitative analysis in electrochemical cells.
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ANILERIDINE
Scientific Name: The scientific name of Anileridine is 1-(2-(4-
Aminophenyl)ethyl)-4-phenyl-4-piperidinecarboxylic acid ethyl ester
hydrochloride.
Molecular structure:
Physical properties-
Appearance: Anileridine, a synthetic analgesic drug, is typically found in
pharmaceutical formulations as a white to off-white crystalline powder.
The physical appearance of Anileridine is characterized by its crystalline
structure, which can vary in color from white to off-white depending on
the specific preparation and manufacturer.
Colour: The color of Anileridine can vary depending on the specific form
or preparation. It is described as an off-white to light yellow solid
Odour: slightly bitter or acrid smell. However, individual sensitivity to
odors can vary, and some individuals may perceive it differently.
Taste: Anileridine is reported to have a bitter taste. However, taste
perception can vary among individuals.
Melting Point: The melting point of anileridine, a synthetic opioid
analgesic, is approximately 113-115°C (235-239°F).
Boiling Point: The boiling point of anileridine, a synthetic opioid analgesic,
is approximately 289-291°C (552-556°F) at standard atmospheric
pressure.
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Solubility:
Water
Anileridine is considered slightly soluble in water.
At room temperature, only a small amount of anileridine dissolves in
water, resulting in a cloudy or milky solution.
The solubility of anileridine in water increases with temperature, but it
remains relatively low compared to its solubility in organic solvents.
Alcohol:
Anileridine is freely soluble in alcohol, particularly in ethanol.
When anileridine is added to alcohol, it dissolves readily and forms a clear,
homogeneous solution.
The solubility of anileridine in alcohol is significantly higher compared to
its solubility in water.
Molar mass: The molar mass of anileridine, a synthetic opioid analgesic, is
approximately 305.39 grams per mole (g/mol).
Chemical Properties:
1. Chemical Formula: The chemical formula of anileridine is C17H21NO2.
2. Chemcal Classification: Anileridine is classified as a synthetic opioid
analgesic, which means it is a man-made compound designed to produce
pain relief similar to naturally occurring opioids such as morphine or
codeine. It belongs to the broader category of opioids, which are
substances that act on opioid receptors in the central nervous system to
alleviate pain.
- Synthetic opioids like anileridine are chemically synthesized
compounds designed to mimic the effects of natural opioids. They are
often developed in an attempt to improve upon the properties of
natural opioids, such as potency, duration of action, or side effect
profile.
- Anileridine specifically belongs to the subclass of phenylpiperidine
opioids, which are characterized by their chemical structure
containing a phenyl ring and a piperidine ring. Other opioids in this
subclass include pethidine (meperidine) and diphenoxylate.
3. Functional Groups: The functional group present in anileridine is an amide
group, which is characterized by a carbonyl group (C=O) bonded to a
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nitrogen atom (N). Specifically, anileridine contains a tertiary amide
functional group.
4. PH: The pH of anileridine hydrochloride is between 2.5 and 3.0 in a
solution.
How it is made? Obtained from:
Anileridine is synthesized chemically through a series of reactions starting
from readily available starting materials. The exact synthetic route may vary
depending on the specific method used by the manufacturer or researcher, but
generally, the synthesis of anileridine involves several key steps.
One common synthetic route to anileridine involves the following steps:
Formation of Phenylacetic Acid Derivative: Phenylacetic acid is reacted
with an alkylating agent (such as ethyl iodide) in the presence of a base
(such as sodium hydroxide) to form a phenylacetic acid derivative. This
derivative serves as the starting material for subsequent reactions.
Conversion to Phenylpropionic Acid Derivative: The phenylacetic acid
derivative undergoes a rearrangement reaction, typically catalyzed by an
acid, to form a phenylpropionic acid derivative.
Formation of Diphenylpropylamine Intermediate: The phenylpropionic
acid derivative is then reacted with aniline in the presence of a
dehydrating agent (such as phosphorus pentoxide) to form a
diphenylpropylamine intermediate.
Final Conversion to Anileridine: The diphenylpropylamine intermediate is
further reacted with an acylating agent (such as acetyl chloride) in the
presence of a base (such as triethylamine) to introduce an acetyl group,
leading to the formation of anileridine.
Once synthesized, anileridine can be obtained in its pure form through
purification techniques such as recrystallization or chromatography. It is typically
obtained as a white to off-white crystalline solid.
Route of Administration: Anileridine is typically administered orally, specifically
in the form of the hydrochloride salt, the route of administration for anileridine is
other, which means it can be administered through various methods, including
oral, intravenous, or intramuscular. Anileridine is typically administered via
intramuscular (IM) injection or intravenous (IV) injection. These routes involve
injecting the medication directly into the muscle tissue (IM) or into a vein (IV).
In some cases, anileridine may also be administered orally in the form of
tablets or capsules, although this route is less common. Oral administration
involves swallowing the medication, after which it is absorbed through the
gastrointestinal tract. The choice of administration route depends on various
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factors such as the patient's condition, the desired onset and duration of action,
and the formulation of the medication. Intramuscular and intravenous injections
are often preferred when rapid pain relief is needed, while oral administration
may be suitable for longer-term pain management.
Regardless of the route of administration, anileridine should be used with
caution and under the supervision of a healthcare professional due to its potential
for abuse, dependence, and side effects. Dosage and administration instructions
should be followed carefully to minimize the risk of adverse reactions.
Pharmacological Action: Anileridine, like other opioid analgesics, exerts its
pharmacological actions primarily by binding to opioid receptors in the central
nervous system. Its pharmacological actions include:
Analgesia: Anileridine produces pain relief by acting on opioid receptors
in the brain and spinal cord, thereby inhibiting the transmission of pain
signals and altering pain perception.
Sedation: Anileridine can induce sedation or drowsiness, which is a
common side effect of opioid medications. This sedative effect can
contribute to its use as an analgesic during medical procedures or in
managing severe pain.
Respiratory Depression: Anileridine, like other opioids, can cause
respiratory depression, which is a reduction in the rate and depth of
breathing. This effect is mediated through the central nervous system and
can be dose-dependent.
Euphoria: Anileridine has the potential to produce feelings of euphoria or
well-being, which can contribute to its abuse potential. This effect is
related to its action on opioid receptors in reward pathways in the brain.
Cough Suppression: Anileridine possesses antitussive properties and can
suppress cough reflexes by acting on opioid receptors in the brainstem.
Physical Dependence and Tolerance: Prolonged use of anileridine can lead
to the development of physical dependence, where the body adapts to the
presence of the drug and withdrawal symptoms occur upon
discontinuation. Tolerance, or the need for higher doses to achieve the
same effect, can also develop with prolonged use.
Analysis:
Physical Method: Anileridine is a synthetic opioid analgesic drug that was
developed in the 1950s. It is a member of the piperidine class of opioids and is
structurally related to other opioids like pethidine and methadone. Here is a
physical analysis of anileridine:
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Appearance: Anileridine typically presents as a white to off-white
crystalline powder.
Odor: It may have a faint odor characteristic of organic compounds, but
generally, it is odorless.
Solubility: Anileridine is soluble in water, ethanol, and chloroform, but
only slightly soluble in ether.
Melting Point: The melting point of anileridine is reported to be in the
range of approximately 140-142°C.
Boiling Point: The boiling point of anileridine is not commonly reported as
it tends to decompose before reaching a consistent boiling point.
Density: The density of anileridine is around 1.2 g/cm³.
Stability: Anileridine should be stored in a cool, dry place away from light
and moisture. It is relatively stable under normal storage conditions but
may degrade upon prolonged exposure to air or heat.
Purity: The purity of anileridine can be determined through various
analytical techniques such as high-performance liquid chromatography
(HPLC) or gas chromatography-mass spectrometry (GC-MS).
Particle Size: Anileridine particles can vary in size depending on the
manufacturing process, but they are generally fine powders.
Crystal Structure: Anileridine typically forms crystals with a monoclinic
crystal system, although specific crystallographic data may not be widely
available.
Chemical method: Chemical methods for the analysis of anileridine typically
involve techniques aimed at identifying and quantifying its chemical structure and
composition. Here are some common chemical methods used for the analysis of
anileridine:
Thin-Layer Chromatography (TLC): TLC is a chromatographic technique
used to separate and analyze compounds based on their polarity and
affinity for the stationary phase. Anileridine can be spotted onto a TLC
plate along with reference standards and then developed using a suitable
mobile phase. Visualization can be achieved using UV light or chemical
staining reagents.
High-Performance Liquid Chromatography (HPLC): HPLC is a powerful
technique for the separation, identification, and quantification of
compounds in a mixture. Anileridine can be separated and detected using
HPLC with various detectors such as UV-Vis, fluorescence, or mass
spectrometry (MS).
Gas Chromatography-Mass Spectrometry (GC-MS): GC-MS combines the
separation capabilities of gas chromatography with the detection and
identification capabilities of mass spectrometry. Anileridine can be
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