Psychedelics Guide › Cannabis: Educational Guide
Cannabis is the most widely consumed illicit psychoactive substance in the world and, at the same time, the most extensively studied as medicine. This dual nature explains almost everything surrounding it: a plant about which vast amounts have been written, yet where finding information that neither stokes unwarranted enthusiasm nor incites panic remains difficult.
This guide brings together everything we have published on the subject since 1996: clinical evidence across specific indications, real differences between routes of administration, the endocannabinoid system, legal status, and even culinary preparations. The editorial standard remains unchanged: what scientific research shows, acknowledged limits, without promising cures and without concealing risks.
Content intended for adults. Nothing published here substitutes for advice from a healthcare professional or constitutes an encouragement of drug use.
Therapeutic Cannabis: What the Evidence Shows, Condition by Condition
Most of our published work on cannabis addresses a single question: what does clinical research actually say regarding each specific indication? Not “cannabis cures everything,” but what has been formally studied, with how many patients, and with what specific outcomes.
- Cannabis and rheumatoid arthritis: scientific evidence and harm reduction
- Cannabidiol as a therapeutic option for myoclonus: evidence, risks, and stress management
- Cannabis as an adjuvant in cauda equina syndrome: evidence and harm reduction
- Cannabis and chemotherapy: symptomatic management in oncology
- Nausea during pregnancy: cannabis, myths, and safer alternatives
- Cannabis and HIV: balancing symptomatic relief, viral load, and metabolic health
- Alzheimer’s disease and cannabidiol: scientific perspectives and necessary precautions
- Cannabis and Parkinson’s disease: scientific evidence and harm reduction
- Cannabis and Crohn’s disease: clinical evidence and harm reduction
- Cannabis and migraine: evidence, myths, and harm reduction
- Cannabis and PTSD: between self-medication and clinical evidence
- Cannabis and neurodegenerative diseases: multiple sclerosis, Alzheimer’s, and Parkinson’s
- Cannabis and neurodegenerative diseases: Alzheimer’s and Parkinson’s
- Cannabis and HIV: scientific evidence for chronic symptom management
- Cannabis and memory: culprit or contributing factor in chronic pain?
- Cannabis and memory: between scientific myth and clinical reality
- Cannabis and rare neurodegenerative diseases: scientific evidence and harm reduction
- Cannabidiol and addictive disorders: evidence, myths, and precautions
- Cannabinoid hyperemesis syndrome: therapeutic relief versus clinical rarity
- The truth about medical cannabis: between therapeutic hope and scientific evidence
- Cannabis and chemotherapy nausea: scientific evidence, risks, and alternatives
- Cannabis and fibromyalgia: between medical controversy and symptomatic relief
- Cannabis and neuropathic pain: scientific evidence for comprehensive management
- Cannabidiol: between therapeutic promise and scientific reality
Routes of Administration and Harm Reduction
How cannabis is consumed matters just as much as how much. Vaporizing, smoking, ingesting edibles, or applying topical oils produce distinct effects and differing risk profiles, giving rise to numerous misconceptions.
- Oral versus inhaled cannabis in multiple sclerosis: balancing efficacy and safety
- Synthetic cannabinoids: a safe substitute for therapeutic cannabis?
- Real efficacy of cannabis oil topicals: science, myths, and harm reduction
- Cannabis vaporization: scientific advances and harm reduction
- The art of cannavaping: science, risks, and therapeutic future
- Cannabis and pulmonary health: chronic bronchitis, scientific evidence, and harm reduction
- Safe preparation of cannabis oils: practical guide for therapeutic use
- Biological contaminants in cannabis: real risks and myths
- Oral versus inhaled cannabis: key insights for oncology patients
- E-cigarettes and cannabis: controversies, harm reduction, and scientific evidence
- The miracle oil myth: why the Rick Simpson story is not science
- Synthetic cannabinoids: the Spice phenomenon and its hidden risks
- Synthetic cannabinoids: the dark side of modern recreational use
- Cannabis oil
- Dosage guidelines for ingested cannabis
- Alcohol extractions
The Endocannabinoid System and Plant Science
How the plant functions physiologically: receptors, active compounds, and the history of an ongoing research tradition that started with Raphael Mechoulam.
- Urinary incontinence and cannabinoids: clinical evidence and harm reduction
- Rimonabant: the medication that altered the mind before the appetite
- Fifty years decoding the cannabis puzzle: from Mechoulam to the endocannabinoid system
- Phantom limb and cannabinoids: an evidence-based therapeutic approach
- Cannabis, diabetes, and the endocannabinoid system: between evidence and complexity
- CBD and pediatric epilepsy: between clinical hope and scientific caution
- Cannabidiol (CBD) and pediatric epilepsy: between clinical promise and medical caution
- Multiple sclerosis and cannabinoids: an evidence-based symptomatic approach
- Cannabinoids and glioblastoma: between rigorous science and genuine hope
- Cannabidiol (CBD): neuroprotection, mental health, and the future of antipsychotic treatments
- Beyond THC and CBD: minor cannabinoids and terpenes
- Multiple sclerosis and cannabinoids: a therapeutic approach based on clinical evidence
- Neuropathic pain and cannabinoids: an evidence-based therapeutic tool
- Beyond THC and CBD: the therapeutic potential of alternative cannabinoids
- Beyond THC and CBD: the vast landscape of additional cannabinoids
Legality, Driving, and Society
The aspect creating the greatest practical friction: statutory laws, roadside drug testing protocols, and the legal status of social clubs and adult consumers.
- Cannabis, health, and driving: between pain management and roadside checkpoints
- Cannabis and driving: risks, tolerance, and the complexities of roadside drug testing
- Cannabis and fertility: between medical lore and scientific evidence
- The therapeutic patient: rigor, responsibility, and science in social clubs
- Cannabis and pregnancy: scientific evidence, actual risks, and patient rights
- Medical cannabis: between history, the law, and myth
- The physician’s role in medical cannabis: reality, myths, and associations
- Synthetic cannabinoids: between legal loopholes and life-threatening danger
- Medical cannabis: scientific hurdles and the legacy of prohibition
Cultivation, Hemp, and Industrial Uses
The plant beyond its pharmacology: fibers, nutrition, and cultivars that have accompanied human agriculture across centuries.
- Isaacs-Mertens syndrome and cannabis: clinical evidence and harm reduction
- Stiff person syndrome: neurophysiology, autoimmunity, and therapeutic cannabis
- Guerrilla Growing
Cannabis Cooking
Ingesting cannabis differs markedly from inhalation: absorption is slower, duration lasts longer, and margin for dosing error narrows significantly. Here are recipes we have published alongside safety advisories.
- Stoned Prawn Pâté
- Cannabis Pasta
- Chefchaouen Carbonara
- Cannabis Crazy Pork
- Cannabis Desserts
- Cannabis Soup: Broth of Mary
More on Cannabis
History, culture, and topics extending beyond the preceding categories.
- Cannabis, lung cancer, and scientific reality: beyond fearmongering
- The Rick Simpson myth: between desperate hope and empirical science
- Cannabis and anorexia nervosa: a therapeutic avenue or potential risk?
- Hepatitis C and cannabis: between hepatic risks and treatment adherence
- Urine drug screens: scientific realities and misconceptions surrounding cannabis
- Does cannabis amotivational syndrome actually exist? A critical examination of evidence
- Cannabis and academic performance: myths, data, and cognitive neuroscience
- Does cannabis cause dependence? Nuances separating myth from empirical evidence
- Orthostatic hypotension and cannabis: understanding, prevention, and patient safety
- The sixth decade of cannabis: a century of official silence and clinical science
- Cannabis and inflammatory bowel disease: evidence, risks, and clinical outlook
- Storing and Preserving Cannabis Flower
Frequently Asked Questions
Are medicinal cannabis and recreational cannabis different plants?
No. They are the exact same botanical species; differences lie in cultivar genetics, ratios between THC and CBD, manufacturing quality control, and above all, context of use. Pharmaceutical formulations are standardized whereas illicit market supplies are not—and knowing precisely what a product contains is what truly matters.
Is medical cannabis legal in Spain?
In 2022, Spain approved a restrictive medical framework limited to standardized pharmacy compounding for specific conditions. Domestic cultivation and cannabis social clubs remain in legal ambiguity, subject to conflicting court rulings. Growing for personal consumption in private spaces is not a criminal offense, though legal boundaries are narrower than widely assumed.
Is vaporizing safer than smoking?
For pulmonary health, yes: eliminating combustion prevents exposure to irritating and carcinogenic combustion byproducts. However, vaporizing does not mitigate the effects of THC itself or the potential for dependence. It reduces a specific harm rather than eliminating all risks.
How long does ingested cannabis take to produce effects?
Between 30 minutes and 2 hours, compared with mere minutes when inhaled, and effects last considerably longer. A common pitfall is redosing too early under the impression that nothing is happening. With edibles, waiting two full hours before considering an additional dose is essential.
Does CBD produce a high?
No. Cannabidiol does not produce noticeable intoxicating psychoactive effects. Commercial marketing claims are another matter, often outpacing verified clinical evidence.
