Cannabis Studies

Cannabis for Chronic Symptoms and Medical Conditions

978 Studies on Cannabis for 184 Conditions
From 1971 - 2018
How Ratings Work


Acne
6 studies — 2008 - 2016


1.2

Addiction to Cannabis
3 studies — 1994 - 2018


3.7

Addiction to Crack or Cocaine
6 studies — 1999 - 2017


2.8

Addiction to Heroin
14 studies — 1976 - 2018


2.9

Addiction to Methamphetamine
5 studies — 2004 - 2016


1.6

Addiction to Nicotine
17 studies — 1994 - 2017


2.8

Addiction to Opiod Based Pain Killers
28 studies — 1976 - 2018


2.9

Age-Related Macular Degeneration
3 studies — 2006 - 2014


1.0

Aging
7 studies — 2006 - 2018


2.4

Alcohol Dependence / Abuse
14 studies — 2002 - 2017


2.7

Alcoholic Steatohepatitis
1 study — 2017


2.0

Alzheimer's Disease
28 studies — 1997 - 2017


2.4

2.5

Anorexia and Cachexia
14 studies — 1991 - 2017


2.5

0.0

Anxiety
25 studies — 2005 - 2017


3.4

Arthritis
6 studies — 2000 - 2017


2.2

Asthma
11 studies — 1974 - 2016


2.6

Atherosclerosis
8 studies — 2006 - 2017


1.6

3.2

Autism
6 studies — 2011 - 2017


2.5

Cancer (Bladder)
1 study — 2015


3.0

Cancer (Bone)
3 studies — 2008 - 2010


2.7

Cancer (Brain)
26 studies — 1998 - 2017


1.8

Cancer (Breast)
24 studies — 1998 - 2016


1.5

Cancer (Cervical)
4 studies — 2004 - 2016


1.0

Cancer (Cholangiocarcinoma)
1 study — 2010


1.0

Cancer (Colon)
12 studies — 2005 - 2016


1.4

Cancer (Endometrial/Uterine)
1 study — 2018


1.0

Cancer (Gastric)
1 study — 2016


1.0

Cancer (Kaposi's Sarcoma)
4 studies — 2004 - 2009


0.2

Cancer (Kidney)
2 studies — 2010 - 2016


2.0

Cancer (Leukemia)
12 studies — 2005 - 2017


1.4

Cancer (Liver)
7 studies — 2006 - 2013


1.6

Cancer (Lung)
13 studies — 1975 - 2014


1.5

Cancer (Lymphoma)
6 studies — 2000 - 2014


1.5

Cancer (metastatic)
8 studies — 2010 - 2017


1.1

Cancer (Oral)
1 study — 2010


1.0

Cancer (Pancreatic)
4 studies — 2006 - 2008


1.2

Cancer (Prostate)
11 studies — 1999 - 2016


1.6

Cancer (Rhabdomyosarcoma)
2 studies — 1993 - 2009


0.5

Cancer (Thyroid)
2 studies — 2006 - 2010


1.5

3.0

Cancer of the Skin (Melanoma)
3 studies — 2008 - 2015


1.3

Cancer of the Skin (Non-Melanoma)
3 studies — 2003 - 2017


3.7

Cancer-Induced Night Sweats
1 study — 2008


3.0

Cardiac Fibrosis
1 study — 2016


2.0

Chagas Disease (Trypanosoma cruzi)
3 studies — 2013 - 2017


2.0

2.0

2.0

2.5

Cognitive Function (Decreasing)
15 studies — 2006 - 2018


2.9

Cough
8 studies — 1976 - 2017


2.2

Crohn's disease
4 studies — 2011 - 2016


2.8

Cystitis (Interstitial)
1 study — 2003


3.0

Depression
27 studies — 1995 - 2018


2.6

Dermatitis (Allergic, contact)
4 studies — 2007 - 2016


2.0

Dermatitis (Eczema)
4 studies — 2009 - 2017


2.8

Diabetes Mellitus
23 studies — 2001 - 2017


2.5

Dravet syndrome
7 studies — 2013 - 2017


2.7

Dupuytren's Contracture
1 study — 2016


2.0

Emotional and Behavioral Disorders (EBD)
6 studies — 2004 - 2015


2.8

Encephalitis
2 studies — 2013 - 2016


3.0

Encephalomyelitis
3 studies — 1998 - 2016


2.3

Endometriosis
3 studies — 2010


1.7

Epilepsy
36 studies — 1980 - 2018


2.8

Epstein–Barr Virus
1 study — 2004


1.0

Excitotoxicity
2 studies — 2011 - 2017


1.0

Familial Mediterranean Fever
1 study — 1997


5.0

1.7

4.0

Fever
3 studies — 2006 - 2016


2.7

Fibromyalgia
4 studies — 2007 - 2017


4.2

1.0

Fractured Bones
4 studies — 2005 - 2015


2.2

Fungal Infection (Candida albicans)
2 studies — 2009 - 2014


-1.5

1.0

Gastro-Esophageal Reflux Disease (GERD)
3 studies — 1996 - 2016


3.3

Glaucoma
10 studies — 1971 - 2016


2.2

Graves' Disease
1 study — 2016


4.0

Hair Growth - Unwanted (Hirsutism)
2 studies — 2007 - 2009


1.0

Hair Loss (Baldness)
2 studies — 2007 - 2009


1.0

Heart Disease
15 studies — 2004 - 2017


2.0

Helminthiasis
3 studies — 1997 - 2016


2.0

Hepatic Ischemia/Reperfusion Injury
2 studies — 2007 - 2017


1.5

Hepatitis
9 studies — 2003 - 2014


1.0

Herpes
6 studies — 1980 - 2010


1.2

Hiccups (intractable)
1 study — 1998


3.0

HIV/AIDS
20 studies — 2005 - 2017


2.2

Huntington's Disease
35 studies — 1986 - 2017


2.1

Hypertension
10 studies — 1979 - 2017


1.9

Infertility (male)
2 studies — 2016


1.5

Inflammation-Induced Cognitive Damage
2 studies — 2014 - 2017


2.0

Inflammatory Bowel Disease (IBD)
12 studies — 2006 - 2017


1.9

Insomnia
18 studies — 1973 - 2017


3.4

2.5

3.0

2.0

Itching (Pruritis)
6 studies — 2002 - 2018


2.8

Kidney Disease (Diabetic Nephropathy)
2 studies — 2010 - 2016


2.5

Kidney Disease (in General)
2 studies — 2010 - 2016


2.5

2.3

3.0

Kidney Failure (Hemodialysis)
2 studies — 2012 - 2016


2.0

Leishmaniasis
5 studies — 2008 - 2016


0.8

Lennox-Gastaut syndrome (LGS)
2 studies — 2015 - 2016


3.5

Libido
3 studies — 2007 - 2017


3.3

Liver Fibrosis
4 studies — 2005 - 2011


2.0

3.0

Lupus
1 study — 2008


1.0

Malaria
4 studies — 1997 - 2017


1.8

1.6

Migraine
7 studies — 1985 - 2017


3.3

Morning Sickness
1 study — 2006


3.0

Motion Sickness
2 studies — 2008 - 2010


2.0

1.0

Multiple Myeloma
1 study — 2016


1.0

Multiple Sclerosis (MS)
47 studies — 1981 - 2018


3.2

Myasthenia Gravis
2 studies — 1987 - 2006


2.0

Myocarditis
1 study — 2016


2.0

Nausea and Vomiting
2 studies — 2005 - 2016


3.0

Neonatal Encephalopathy
1 study — 2016


2.0

Neonatal Hypoxia
3 studies — 2011 - 2016


2.0

Neuroblastoma
2 studies — 2014 - 2016


1.5

Neurodegeneration (in general)
12 studies — 2003 - 2017


2.0

3.0

Night Vision (Poor)
2 studies — 2004 - 2016


2.5

Obesity
6 studies — 2011 - 2016


3.0

Obsessive-Compulsive Disorder (OCD)
2 studies — 2014 - 2016


2.0

Organ Transplant, Graft Rejection
5 studies — 2011 - 2015


2.4

Osteoporosis
5 studies — 2005 - 2016


2.0

Oxidative Stress
6 studies — 1998 - 2017


1.8

1.0

Pain (Acute)
14 studies — 1997 - 2017


2.6

Pain (Allodynia)
1 study — 2017


3.0

Pain (Chronic Non-Malignant)
30 studies — 2003 - 2018


2.9

Pain (Due to Advanced Cancer)
8 studies — 1975 - 2017


3.8

Pain (Eye)
1 study — 2018


2.0

Pain (Menstrual)
2 studies — 2003 - 2012


4.0

Pain (Neuropathies, AIDS-Related)
3 studies — 2007 - 2011


4.3

Pain (Neuropathies, Diabetes)
3 studies — 2004 - 2015


3.3

Pain (Neuropathies, in general)
16 studies — 2003 - 2018


3.3

Pain (nociceptive)
2 studies — 2012 - 2018


3.5

Pancreatitis
5 studies — 2005 - 2017


2.6

Parkinson's Disease
31 studies — 2003 - 2017


2.5

Periodontitis
1 study — 2009


2.0

Pneumococcal meningitis
1 study — 1996


2.0

Post Ebola Syndrome
1 study — 2016


3.0

Post-Surgery Wounds
1 study — 2009


4.0

Post-Traumatic Stress Disorder
25 studies — 1996 - 2018


2.8

Pregnancy
1 study — 2016


4.0

1.5

Psoriasis
7 studies — 2006 - 2017


1.9

Psychosis
6 studies — 2012 - 2017


1.8

Respiratory Syncytial Virus
1 study — 2018


2.0

Retinal Disease
6 studies — 2008 - 2016


2.3

Rheumatoid Arthritis
9 studies — 2006 - 2017


2.7

Schizophrenia
12 studies — 2004 - 2017


3.3

Scleroderma
2 studies — 2016


2.0

Seborrhea
4 studies — 2008 - 2016


1.0

Sepsis
5 studies — 2008 - 2014


2.2

Sickle Cell Disease
2 studies — 2005 - 2010


2.5

Skin Diseases (in general)
4 studies — 2002 - 2009


2.5

Sleep Apnea
4 studies — 2002 - 2017


2.2

Spasticity (Pediatric)
1 study — 2016


4.0

Spinal Cord Injuries
8 studies — 1974 - 2017


3.8

Stress
34 studies — 1996 - 2017


2.8

Stroke
20 studies — 1998 - 2017


1.7

Sturge-Weber Syndrome
1 study — 2017


4.0

Systemic Sclerosis
2 studies — 2009 - 2010


2.0

Tourette Syndrome
13 studies — 1989 - 2017


3.7

Toxic shock syndrome
1 study — 2004


3.0

Trauma (physical)
1 study — 2017


3.0

Traumatic Brain Injury
4 studies — 2006 - 2017


1.5

4.0

Tuberculosis
1 study — 2016


2.0

Tuberous sclerosis complex
1 study — 2016


4.0

Urinary incontinence
3 studies — 2003 - 2006


4.7

Uveitis
3 studies — 2007 - 2014


1.7

Vascular Dementia
2 studies — 2006 - 2017


3.0

Wilson's Disease
1 study — 2005


3.0


The Cannabis Health Index
Combining the Science of Medical Cannabis with Mindfulness Techniques To Heal Chronic Symptoms and Diseases


Cannabis Health Index

This comprehensive sourcebook combines evidence-based insights from more than 1,000 studies from cannabinoid and consciousness research to present a convincing case for the powerful healing effects of medical marijuana on over 100 chronic symptoms and diseases. Written by a former paramedic with a PhD in alternative healthcare, this in-depth reference shows that the subtle shifts in awareness commonly observed in cannabis-using patients vastly contribute to these compounds' therapeutic potential.

Go to Symptoms & Conditions Buy the Book on Amazon

How Ratings Work

The rating for each medical condition is based on the average qualitative therapeutic value of cannabis as a treatment sourced from the results of clinical studies for that particular medical condition.


The rating points are on a scale of zero to five with zero indicating no observed therapuetic value and five indicating significant and demonstrably scientific therapuetic value. It is the total value points of each study divided by the number of studies conducted for that condition.


More information about each rating and condition can be found in the Cannabis Health Index.



One Point

Possibility of efficacy for cannabis in treatment of this condition.


Two Points

Possible to probable range of efficacy of cannabis for treatment of this condition.


Three Points

Likely probability of the efficacy of cannabis for treatment of this condition.


Four Points

Probability toward demonstrable efficacy of cannabis for treatment of this condition.


Five Points

Demonstrable efficacy of cannabis for treatment of this condition.


Uwe Blesching, PhD

Uwe Blesching, PhD

Uwe Blesching, is medical journalist and regular contributor in the fields of the cannabinoid science, Mind-Body Medicine, phytopharmacology, as well as evidence-based illness prevention and treatment protocols.

In addition to his life-long passion for Integrative Medicine, his latest book the Cannabis Health Index is informed by Blesching's rigorous in depth research and twenty years experience in emergency medicine as a Paramedic for the City of San Francisco.

He holds a BA in Humanities from the New College of California; an MA in Psychology and a PhD in Higher Education and Social Change from the Western Institute for Social Research.