Cannabis are products of the plants Cannabis Sativa and Cannabis Indica [1]. Cannabis is the most abused illicit drug and is cultivated in 151 nations [2]. Cannabinoids are major pharmacologically active compounds in cannabis which exist mainly as: endocannabinoids, phyto-cannabinoids and synthetic cannabinoids [3]. Endocannabinoids (like anandamide), synthesized by human body, act on cannabinoid receptors (CB): CB1 (brain) and CB2 (immune system) of endocannabinoid system which plays a key role in maintaining body homeostasis. Phyto-cannabinoids are exogenous plant-derived cannabinoids concentrated in oil resin of the buds and the leaves of cannabis plants with affinity for mammalian cannabinoid receptors. Of more than 113 cannabinoids known, tetrahydrocannabinol (THC, a major psychoactive compound) and cannabidiol (CBD, showing therapeutic potential) are major Phyto cannabinoids [4-6]. Synthetic Cannabinoids (like nabilone) are labmade molecules designed to mimic Phyto-cannabinoids action. To date, Food and Drug Administration (FDA) has approved one cannabis-derived drug product (direct plant extract): Epidiolex (cannabidiol) and three synthetic cannabis-related products (synthetic isolates): Marinol (dronabinol), Syndros (dronabinol) and Cesamet (nabilone) [7]. Cannabis use is either 'medical' (treating symptoms/ conditions) or 'recreational' (getting high) [8]. Cannabis is kept under schedule-I (research and medical) drug and is prohibited
ARTICLE INFO STRUCTURED ABSTRACTIntroduction: Cannabis use to treat various diseases or symptoms is not clearly defined. The purpose of this review is to explore the existing evidence regarding the harms and benefits of cannabis use across multiple illnesses.
Material and Methods:Search for articles for this review was performed in PubMed, Google Scholar and PsycINFO. We summarize and discuss recent evidence regarding cannabis use in multiple neurological (including seizures, neurodegenerative disorders, multiple sclerosis), psychiatric (including depression, bipolar disorder, anxiety and psychotic illness) and other diseases (including chronic pain, cancer, vomiting, cardiovascular diseases, COVID-19).
Results:The collated body of evidence shows that the benefit of its use (medicinal or recreational) mostly lacks adequate evidence warranting for further study. In pretext of already available better options (with better efficacy and safety), the consideration of this agent is seriously debatable.
Conclusion:Harms or adverse effects of cannabis use clearly are evidence based and are at times serious (e.g. psychosis association), mainly from mental health perspective. Hence, its use should not be suggested and needs serious consideration before using it.