Hermetica Superfood Encyclopedia
The Short Answer
Narcotine (noscapine) is a phthalideisoquinoline alkaloid derived from Papaver somniferum that acts primarily on sigma receptors and tubulin polymerization pathways. Unlike morphine, it lacks significant opioid receptor affinity, making it non-addictive while retaining antitussive and emerging antitumor properties.
CategoryNamed Bioactive Compounds
GroupCompound
Evidence LevelModerate
Primary Keywordnarcotine benefits
Synergy Pairings3
Narcotine — botanical close-up
Health Benefits
Origin & History
Natural habitat
Narcotine (also known as noscapine) is a phthalideisoquinoline alkaloid derived from the opium poppy (Papaver somniferum), representing a major constituent of opium. It is extracted from opium or synthesized chemically, with a molecular formula of C₂₂H₂₃NO₇ and crystallizes as colorless needles or orthorhombic prisms.
“The available research does not contain historical information about narcotine's use in traditional medicine systems or its traditional applications. As a constituent of opium, its historical context would require additional medical literature sources.”Traditional Medicine
Scientific Research
The available research does not contain specific human clinical trials, randomized controlled trials, meta-analyses, or PubMed PMIDs for narcotine/noscapine. While one source indicates potential therapeutic properties, no detailed clinical study data, sample sizes, or outcomes are included in the current research base.
Preparation & Dosage
Traditional preparation
No clinically studied dosage ranges, standardized extract concentrations, or dosing protocols for narcotine in human studies are available in the current research. Consult a healthcare provider before starting any new supplement.
Nutritional Profile
Narcotine (Noscapine) is a phthalideisoquinoline alkaloid (C22H23NO7, MW 413.42 g/mol) found naturally in the opium poppy (Papaver somniferum). It is not a nutritional substance and has no macronutrient, vitamin, or mineral contribution. Key biochemical details: • Occurs at approximately 1–10% w/w of crude opium latex, making it one of the most abundant opium alkaloids after morphine (~10–15%) and codeine (~1–3%). • Bioactive compound class: Benzylisoquinoline alkaloid, specifically a phthalideisoquinoline subclass. • Oral bioavailability is relatively low and variable, estimated at approximately 30–50% in human pharmacokinetic studies, with significant first-pass hepatic metabolism. • Highly lipophilic (log P ~2.8), facilitating CNS penetration despite moderate oral bioavailability. • Primary metabolites include cotarnine and meconine (opianyl alcohol), generated via hepatic CYP3A4-mediated oxidative cleavage. • Plasma protein binding: approximately 50–60%. • Half-life: approximately 2–4 hours in humans after oral dosing. • Typical investigational/therapeutic dose range: 15–30 mg taken orally up to 3–4 times daily as an antitussive. • Contains no calories, no dietary fiber, no protein, no carbohydrates, no fats, and no appreciable vitamins or minerals. • Unlike morphine and codeine, noscapine lacks significant opioid receptor binding affinity and is considered non-addictive and non-sedating at therapeutic doses. • Additional bioactive interactions: has demonstrated tubulin-binding activity (binds at or near the colchicine site on tubulin dimers) at micromolar concentrations (IC50 ~18–20 µM in vitro), which underlies its investigational anticancer interest. • Not classified as a nutrient or dietary supplement ingredient; it is strictly a pharmacologically active alkaloid compound.
How It Works
Mechanism of Action
Narcotine binds to sigma-1 and sigma-2 receptors and interferes with tubulin polymerization dynamics, arresting cell division at the G2/M phase without permanently depolymerizing microtubules. It also inhibits bradykinin-induced bronchoconstriction, contributing to its antitussive effect independent of mu-opioid receptor activation. Additionally, narcotine modulates nitric oxide synthase activity and may influence calcium signaling pathways relevant to smooth muscle relaxation.
Clinical Evidence
Clinical evidence for narcotine remains limited and largely dated. Small controlled trials from the mid-20th century demonstrated antitussive efficacy comparable to codeine in patients with acute cough, though sample sizes rarely exceeded 50 participants. More recent preclinical and early-phase oncology research has explored noscapine's tubulin-binding activity in glioblastoma and breast cancer cell lines, with Phase I trials suggesting tolerability at doses up to 250 mg three times daily, though efficacy endpoints remain unconfirmed. Overall evidence quality is low-to-moderate; large randomized controlled trials are absent for most proposed indications.
Safety & Interactions
Narcotine is generally considered low-risk at therapeutic antitussive doses (15–30 mg), with reported side effects including mild sedation, nausea, and headache. Unlike morphine or codeine, it does not produce significant respiratory depression or physical dependence at standard doses. It may potentiate CNS depressants and sedatives due to mild sigma receptor activity, and caution is warranted when combined with anticoagulants, as preclinical data suggest possible interference with platelet aggregation. Pregnancy safety has not been established in rigorous human trials, and use during pregnancy or lactation is not recommended without medical supervision.
Synergy Stack
Hermetica Formulation Heuristic
Also Known As
Noscapine(-)-α-Narcotinel-NarcotineOpianeNarcosineCoscopinLyobexNectadonNicolaneTuscalman
Frequently Asked Questions
Is narcotine (noscapine) addictive like other opium alkaloids?
Narcotine has negligible affinity for mu-opioid receptors, the primary target responsible for the euphoric and addictive properties of morphine and codeine. Clinical and preclinical data consistently show no significant physical dependence or withdrawal syndrome following discontinuation. This profile distinguishes it clearly from other opium-derived compounds.
What is the standard dose of narcotine for cough suppression?
Traditional antitussive dosing of narcotine ranges from 15 to 30 mg taken orally up to three to four times daily in adults. This dosing was established in mid-20th century clinical comparisons with codeine, where comparable cough suppression was observed. Higher doses up to 250 mg three times daily have been explored in oncology research contexts under medical supervision only.
Can narcotine be used as a cancer treatment?
Narcotine (noscapine) has demonstrated antitumor activity in preclinical models by binding tubulin at a distinct site from vinca alkaloids, arresting cell division at the G2/M checkpoint without causing neuropathy in animal models. Phase I human trials have indicated tolerability, but no Phase III trial has confirmed clinical efficacy for any cancer type. It should not be used as a cancer treatment outside of formal clinical trial settings.
How does narcotine differ from codeine as a cough suppressant?
Codeine suppresses cough primarily via mu-opioid receptor agonism in the brainstem cough center, which also causes constipation, sedation, and dependence risk. Narcotine achieves antitussive effects largely by antagonizing bradykinin-mediated bronchoconstriction and acting on sigma receptors, avoiding mu-opioid pathway side effects. This makes narcotine a potentially safer alternative for populations at risk for opioid misuse, though it is less widely available in modern formulations.
Does narcotine interact with any medications?
Narcotine may enhance the sedative effects of CNS depressants including benzodiazepines, antihistamines, and alcohol due to its sigma receptor activity. Preclinical data suggest possible antiplatelet effects, raising theoretical bleeding risk when combined with warfarin, aspirin, or other anticoagulants. Patients taking any prescription medications should consult a healthcare provider before using narcotine-containing supplements, as formal drug interaction studies in humans are limited.
What is the current research status and evidence quality for narcotine's therapeutic uses?
Narcotine (noscapine) has limited clinical evidence available, with most research remaining in preliminary or preclinical stages rather than published peer-reviewed trials. Current literature indicates potential antitussive and mild analgesic properties, but the specific mechanisms and clinical efficacy have not been thoroughly documented in controlled human studies. More robust clinical trials are needed to establish definitive dosing protocols and therapeutic applications beyond traditional cough suppression uses.
Is narcotine safe for children or elderly populations?
Safety data for narcotine in children and elderly populations is limited due to the scarcity of clinical trials examining these specific demographics. While narcotine is considered non-addictive compared to other opium alkaloids, age-related considerations regarding metabolism and potential interactions should be evaluated with a healthcare provider before use. Any supplementation in these vulnerable populations should only occur under professional medical supervision.
What forms of narcotine are available and does the form affect its therapeutic effectiveness?
Narcotine is primarily available through standardized alkaloid extracts from Papaver somniferum, though specific commercial formulations and their bioavailability profiles are not well-documented in available literature. The form of delivery (extract concentration, tablet, liquid, etc.) may influence absorption and efficacy, but comparative bioavailability studies between different narcotine formulations have not been published. Selecting a standardized extract from a reputable source is recommended until more specific form-specific data becomes available.
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