Nalodeine: Difference between revisions

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'''Nalodeine''' is a semi-synthetic [[opioid]] antagonist, chemically related to [[naltrexone]] and [[naloxone]]. It is used in the treatment of opioid overdose and addiction.
{{Short description|An opioid analgesic drug}}
{{Drugbox
| verifiedfields = changed
| verifiedrevid = 477318123
| IUPAC_name = 3-methoxy-17-methylmorphinan-6-one
| image = Nalodeine_Structure.svg
| image_size = 200px
| image_alt = Chemical structure of Nalodeine
}}


==Chemistry==
'''Nalodeine''' is an [[opioid]] analgesic drug that is derived from [[codeine]]. It is used primarily for its pain-relieving properties. Nalodeine is a semi-synthetic opioid, meaning it is chemically modified from naturally occurring opiates found in the [[opium poppy]].
Nalodeine is derived from [[thebaine]], a naturally occurring opiate alkaloid found in the opium poppy ([[Papaver somniferum]]). It is synthesized by modifying thebaine's chemical structure to create a compound that blocks the effects of opioids rather than producing them.
 
==Chemical Structure and Properties==
[[File:Nalodeine_Structure.svg|Chemical structure of Nalodeine|thumb|right]]
Nalodeine has the chemical formula C18H21NO3 and a molecular weight of 299.37 g/mol. It is structurally similar to codeine, with the primary difference being the presence of a methoxy group at the 3-position of the morphinan skeleton. This modification affects its pharmacological activity and potency.


==Pharmacology==
==Pharmacology==
Nalodeine works by binding to the [[mu-opioid receptor]] in the brain, blocking the effects of opioids. This can reverse the effects of an opioid overdose, such as respiratory depression, sedation, and hypotension. It can also help to prevent relapse in individuals recovering from opioid addiction by reducing the rewarding effects of opioids.
Nalodeine acts on the [[central nervous system]] by binding to [[opioid receptors]], which are part of the body's natural pain control system. It primarily targets the [[mu-opioid receptor]], which is responsible for its analgesic effects. The drug's action at these receptors leads to a decrease in the perception of pain, an increase in pain tolerance, and, in some cases, a sense of euphoria.


==Clinical Use==
===Metabolism===
Nalodeine is used in emergency situations to reverse the effects of opioid overdose. It can also be used as part of a comprehensive treatment program for opioid addiction, which may also include counseling and other behavioral therapies.
Nalodeine is metabolized in the [[liver]] by the [[cytochrome P450]] enzyme system. It undergoes [[O-demethylation]] to produce active metabolites, which contribute to its analgesic effects. The metabolites are then excreted by the [[kidneys]].
 
==Medical Uses==
Nalodeine is used in the management of moderate to severe pain. It is often prescribed when other pain relief measures are insufficient. Due to its potential for addiction and abuse, its use is typically limited to short-term management of pain.


==Side Effects==
==Side Effects==
Possible side effects of nalodeine include nausea, vomiting, sweating, and increased heart rate. In rare cases, it can cause more serious side effects such as seizures, hallucinations, and severe allergic reactions.
Common side effects of Nalodeine include [[nausea]], [[vomiting]], [[constipation]], [[drowsiness]], and [[dizziness]]. More serious side effects can include [[respiratory depression]], [[hypotension]], and [[allergic reactions]].
 
==See Also==
* [[Naloxone]]
* [[Naltrexone]]
* [[Opioid Overdose]]
* [[Opioid Addiction]]


==References==
==Legal Status==
<references />
The legal status of Nalodeine varies by country. In many jurisdictions, it is classified as a controlled substance due to its potential for abuse and dependence. Prescriptions are typically required for its use.


[[Category:Opioid Antagonists]]
==Related Pages==
[[Category:Drugs]]
* [[Opioid]]
[[Category:Medicine]]
* [[Codeine]]
* [[Morphine]]
* [[Pain management]]


{{medicine-stub}}
[[Category:Opioids]]
<gallery>
[[Category:Analgesics]]
File:Nalodeine Structure.svg|Nalodeine
[[Category:Phenanthrenes]]
</gallery>
<gallery>
File:Nalodeine Structure.svg|Nalodeine
</gallery>

Latest revision as of 11:18, 23 March 2025

An opioid analgesic drug


Nalodeine
INN
Drug class
Routes of administration
Pregnancy category
Bioavailability
Metabolism
Elimination half-life
Excretion
Legal status
CAS Number
PubChem
DrugBank
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KEGG


Nalodeine is an opioid analgesic drug that is derived from codeine. It is used primarily for its pain-relieving properties. Nalodeine is a semi-synthetic opioid, meaning it is chemically modified from naturally occurring opiates found in the opium poppy.

Chemical Structure and Properties[edit]

Chemical structure of Nalodeine

Nalodeine has the chemical formula C18H21NO3 and a molecular weight of 299.37 g/mol. It is structurally similar to codeine, with the primary difference being the presence of a methoxy group at the 3-position of the morphinan skeleton. This modification affects its pharmacological activity and potency.

Pharmacology[edit]

Nalodeine acts on the central nervous system by binding to opioid receptors, which are part of the body's natural pain control system. It primarily targets the mu-opioid receptor, which is responsible for its analgesic effects. The drug's action at these receptors leads to a decrease in the perception of pain, an increase in pain tolerance, and, in some cases, a sense of euphoria.

Metabolism[edit]

Nalodeine is metabolized in the liver by the cytochrome P450 enzyme system. It undergoes O-demethylation to produce active metabolites, which contribute to its analgesic effects. The metabolites are then excreted by the kidneys.

Medical Uses[edit]

Nalodeine is used in the management of moderate to severe pain. It is often prescribed when other pain relief measures are insufficient. Due to its potential for addiction and abuse, its use is typically limited to short-term management of pain.

Side Effects[edit]

Common side effects of Nalodeine include nausea, vomiting, constipation, drowsiness, and dizziness. More serious side effects can include respiratory depression, hypotension, and allergic reactions.

Legal Status[edit]

The legal status of Nalodeine varies by country. In many jurisdictions, it is classified as a controlled substance due to its potential for abuse and dependence. Prescriptions are typically required for its use.

Related Pages[edit]