How to Buy Medical Cannabis for Arthritis Online
A practical guide to buying medical cannabis for arthritis online: eligibility, verified dispensaries, cannabinoid ratios, dosing, and the scams to avoid.
Short answer
Cannabis can reduce arthritis pain for some people. It does not repair cartilage or stop joint damage. Human trials are few, small, and short. Most run 5 weeks or less. No cannabis product has FDA approval for arthritis.
medical cannabis oil for arthritis pain relief
What arthritis does
Arthritis covers more than 100 conditions. Two are common. Osteoarthritis wears down cartilage. Rheumatoid arthritis is an autoimmune disease. Immune cells attack the synovium, the lining of the joint. That attack releases cytokines: TNF-alpha, IL-1, and IL-6. These proteins drive swelling and pain.
medical cannabis for arthritis in hands treatment
CDC data from 2019 to 2021 counted 53.2 million US adults with doctor-diagnosed arthritis. That is about 1 in 5 adults.
medical cannabis vs nsaids for arthritis
What THC and CBD do
THC binds CB1 receptors in the brain and spinal cord. That changes pain signaling. THC also binds CB2 receptors on immune cells. In lab models, CB2 activation lowers cytokine release. CBD has low affinity for CB2. CBD acts on other targets, including TRPV1 and serotonin receptors. CBD also inhibits CYP450 enzymes, which affects how the liver breaks down some drugs.
What human studies show
The largest controlled trial used Sativex, an oromucosal spray with THC and CBD in near-equal amounts. Researchers gave it to 58 adults with rheumatoid arthritis for 5 weeks. The treated group reported less pain on movement and better sleep. The trial ran in 2006 and was published in Rheumatology. It was small and funded by the maker.
Other human data come from surveys. A 2019 survey of Canadian adults with osteoarthritis found that users reported lower pain scores than non-users. Surveys cannot prove cause and effect.
Most arthritis animal studies use CBD or synthetic cannabinoids. They show less joint swelling and lower cytokine levels. Rodent joints differ from human joints. Positive animal results often do not carry over at the same dose.
Forms
- Topical: lotions and balms. Little THC reaches the bloodstream. Local effect is not well measured.
- Oral: capsules and edibles. Onset is 30 to 120 minutes. Effects last 4 to 8 hours.
- Inhaled: flower and vape. Onset is 1 to 10 minutes. Effects last 1 to 3 hours.
- Oromucosal spray: a prescription medicine in some countries. Not FDA approved in the US.
Risks
Common THC side effects: dizziness, dry mouth, fast heart rate, impaired memory, and drowsiness. About 10% of adults who use cannabis develop cannabis use disorder. The rate is 17% for people who start as teens.
Cannabis can interact with arthritis drugs. CBD inhibits CYP3A4 and CYP2C19. That enzyme list covers some NSAIDs, celecoxib, prednisone, and methotrexate. Ask a pharmacist before combining them. Cannabis adds sedation to opioids and benzodiazepines.
What is unknown
No one knows the right dose for arthritis. No trial has measured whether cannabis slows joint damage. Long-term safety data for daily use over years are missing. State law and federal law differ. Check local rules.