Disclaimer: The information provided on this site is for educational purposes only and is not intended to serve as medical advice. Cannabis remains classified as a Schedule I substance under federal law, which limits healthcare providers from offering medical advice regarding its use. We encourage you to talk with qualified dispensaries about their certified products and always remember to start at the lowest dose and go slow. This information is current as of [August, 2025]. State laws and medical guidance may change.
Understanding Medical Cannabis
There’s a lot of confusion and stigma around medical cannabis, but the research tells a more balanced story. According to a 2024 update from the Canadian Centre on Substance Use and Addiction, medical cannabis could help many people manage chronic pain, symptoms of multiple sclerosis, and even some mental health issues like anxiety. It’s not a miracle cure, but for those who haven’t found relief with other treatments, it can make a real difference in quality of life. The key is to use it safely. Start with a low dose, go slow, and stay informed about how it affects you. Researchers are continuing to study cannabis to better understand how it works and who it can help the most. This balanced perspective helps break down stigma and supports people seeking safe, evidence-based alternatives to traditional therapies.
Reference:
Allan GM, Ramji J, Perry D, et al. (2024). Medical Use of Cannabis and Cannabinoids—2024 Update. Canadian Centre on Substance Use and Addiction. https://www.ccsa.ca/sites/default/files/2024-04/Clearing-the-Smoke-on-Cannabis-Medical-Use-of-Cannabis-and-Cannabinoids-2024-Update-en.pdf
National Center for Complementary and Integrative Health (NCCIH). (n.d.). Cannabis (Marijuana) and Cannabinoids: What You Need To Know. Retrieved August 24, 2025, from https://www.nccih.nih.gov/health/cannabis-marijuana-and-cannabinoids-what-you-need-to-know
Russo, E. B. (2019). The Entourage Effect in Cannabis Medicinal Products. Frontiers in Pharmacology, 10, 1–9. https://doi.org/10.3389/fphar.2019.00001
ElSohly, M. A., & Slade, D. (2005). The Cannabis Terpenes. Journal of Natural Products, 68(5), 1–7. https://doi.org/10.1021/np050070k
Start low, go slow: Begin with the smallest dose possible and increase gradually if needed.
Know your product: Understand the THC content of what you’re using.
Avoid mixing: Don’t mix cannabis with alcohol or other drugs
Be patient: Effects may take time, especially with edibles or tinctures.
Keep track: Monitor how cannabis affects your symptoms and side effects.
Talk to trusted sources: Consult qualified dispensaries
Store securely: Keep all products in a locked container, out of reach of children, pets, and others.
Label clearly: Make sure all containers are labeled so they’re not confused with non-cannabis products.
Separate edibles: Store edibles away from regular snacks and sweets to prevent accidental ingestion.
Avoid secondhand exposure: Be mindful of smoke or vapor, especially around children, pregnant individuals, and non-users.
Onset Time: 1–5 minutes
Duration: 1–3 hours
Pros:
Fast relief, helpful for acute symptoms (pain, nausea)
Easy to control dose in real time
Cons:
Harsh on lungs; may irritate the respiratory system
Produces strong odor
Not ideal for long-term lung health or immunocompromised individuals
Onset Time: 1–5 minutes
Duration: 1–3 hours
Pros:
Fast-acting like smoking, but less harmful to lungs
Discreet (less odor)
Precise temperature control can enhance effects
Cons:
Requires a vaporizer device (initial cost)
Not as long-lasting as other methods
Quality of vapor can vary by device and product
3. Topicals (Creams, Gels, Transdermal Patches)
Onset Time: 15–60 minutes
Duration: 4–8 hours (localized effect)
Pros:
Targeted relief for localized pain, inflammation, or skin conditions
Minimal systemic effects, so less risk of psychoactive effects
Safe for individuals who want to avoid inhalation or ingestion
Cons:
Effects are generally localized and may not help systemic symptoms
Onset can be slower compared to inhalation
May cause skin irritation or allergic reaction in sensitive individuals
Onset Time: 30 minutes to 2 hours
Duration: 4–8 hours (can last up to 12)
Pros:
Long-lasting effects—ideal for chronic symptoms
No lung involvement
Variety of options and flavors
Cons:
Delayed onset may lead to accidental overconsumption
Difficult to dose accurately
Effects vary based on metabolism and stomach contents
Onset Time:
Sublingual (under tongue): 15–45 minutes
Swallowed: 30–90 minutes
Duration: 4–6 hours
Pros:
Discreet and easy to use
Better dose control than edibles
Versatile: can be added to food or taken directly
Cons:
Sublingual method requires proper technique for full effect
Taste may be unpleasant for some users
Still slower than inhaled methods
References:
Abrams, D. I. (2018). The therapeutic effects of cannabis and cannabinoids: An update from the National Academies of Sciences, Engineering and Medicine report. European Journal of Internal Medicine, 49, 7–11. https://doi.org/10.1016/j.ejim.2018.01.003
Lucas, C. J., Galettis, P., & Schneider, J. (2018). The pharmacokinetics and the pharmacodynamics of cannabinoids. British Journal of Clinical Pharmacology, 84(11), 2477–2482. https://doi.org/10.1111/bcp.13710
National Academies of Sciences, Engineering, and Medicine. (2017). The health effects of cannabis and cannabinoids: The current state of evidence and recommendations for research. The National Academies Press. https://www.ncbi.nlm.nih.gov/books/NBK425767/
Stith, S. S., Vigil, J. M., Adams, I. M., Reeve, A., & Vandrey, R. (2019). A systematic review of the medical cannabis literature: Evidence for topical and transdermal use. Frontiers in Pharmacology, 10, 1299. https://doi.org/10.3389/fphar.2019.01299
Cannabis products are often marketed as:
Indica: Promotes relaxation or sedation often known as “in-da-couch”
Sativa: Associated with energy and focus
Hybrid: A mix of both effects
🔬 Scientific Reality: These labels refer to botanical characteristics, not the actual effects on the body. The therapeutic impact of cannabis is determined more by:
Cannabinoid profile (THC, CBD)
Terpene composition (e.g., myrcene, limonene, linalool)
Individual response and tolerance
Common Side Effects of Medical Cannabis
While many patients tolerate cannabis well, some side effects are common, especially with THC-dominant products or higher doses:
🔍 Note: These effects vary by route (inhaled vs. oral), dose, tolerance, and chemotype.
References:
Huestis, M. A., Solimini, R., Pichini, S., Pacifici, R., Carlier, J., & Busardò, F. P. (2019). Cannabinoids, psychotropic drugs, and drug interactions. Current Neuropharmacology, 17(9), 926–965. https://doi.org/10.2174/1570159X17666190603144833
MacCallum, C. A., & Russo, E. B. (2018). Practical considerations in medical cannabis administration and dosing. European Journal of Internal Medicine, 49, 12–19. https://doi.org/10.1016/j.ejim.2018.01.004
National Academies of Sciences, Engineering, and Medicine. (2017). The health effects of cannabis and cannabinoids: The current state of evidence and recommendations for research. The National Academies Press. https://www.ncbi.nlm.nih.gov/books/NBK425767/
🚨 Seek medical attention if you experience:
Chest pain or irregular heartbeat
Severe dizziness, fainting, or confusion
Persistent vomiting
Hallucinations or delusions
Sudden or severe anxiety or panic attacks
Symptoms that interfere with breathing or consciousness
Worsening mental health symptoms (e.g., depression, mania, psychosis)
Call 911 if symptoms are life-threatening or involve loss of consciousness.
🚫 Use caution with:
Benzodiazepines (e.g., lorazepam)
Opioids
Antidepressants
Anticoagulants (e.g., warfarin)
Anti-seizure medications (e.g., clobazam)
Immunosuppressants (e.g., tacrolimus, cyclosporine)
👉 Always inform your healthcare provider or pharmacist about cannabis use, especially when adding or adjusting medications.
Monitoring how cannabis affects your symptoms and any side effects is an important part of safe, effective treatment.
Why it matters: Cannabis affects people differently based on the product used, dose, frequency, and individual body chemistry. Tracking helps identify what works best and what causes problems.
What to track:
Time and date of use
Type of product (e.g., tincture, edible, vaporized flower)
Cannabinoid content (THC/CBD % or mg)
Dose/amount used
Symptoms before and after (e.g., pain level, mood, sleep)
Side effects (e.g., dry mouth, fatigue, anxiety)
Evidence:
Studies show that consistent tracking improves treatment outcomes and helps both patients and providers personalize care (Lucas et al., 2018; National Academies, 2017).
Adjustments should be based on patterns in symptom tracking. Signs that a treatment plan might need adjusting include:
Inadequate relief of symptoms despite regular use
Increasing side effects or new unwanted effects
Changes in condition (e.g., worsening anxiety or pain)
Increased tolerance (needing more for the same effect)
Adjustment tips:
Start low and go slow: Increase doses gradually, especially when trying new products.
Try different cannabinoid profiles
Switch methods: Inhaled products may have quicker effects, while edibles have longer-lasting effects.
Always talk to a qualified medical provider before making major changes, especially if you have other health conditions or take medications.
Evidence:
Cannabis therapy is not one-size-fits-all. Studies emphasize individualized treatment based on close monitoring and symptom response (Hergenrather et al., 2019; Abrams, 2018).
Cannabis affects everyone differently. Certain groups may have unique needs or risks when using medical cannabis. If you fall into one of these categories, be sure to talk with your healthcare provider before starting or adjusting treatment.
As we age, our bodies process medications differently. Older adults may be more sensitive to cannabis, especially THC. This can increase the risk of dizziness, drowsiness, or falls. Starting with a very low dose and going slow is key.
Cannabis is not recommended during pregnancy or while breastfeeding. THC can cross the placenta and may affect your baby’s development.
Medical cannabis is legal for patients 18 and older, but the brain is still developing into the mid-20s. Young adults may be more sensitive to THC’s effects on mood and focus. Choosing balanced or CBD-rich products and monitoring symptoms is encouraged.
Some patients with anxiety, PTSD, or depression report relief with medical cannabis. However, others may notice their symptoms worsen, especially with high-THC strains. It’s important to track how you feel and use balanced or CBD-rich products when possible.
If you have liver or kidney issues, or take several medications, cannabis may interact with your treatment. Always inform your specialist about starting medical cannabis to avoid unwanted effects.