Start low. A common opening dose for nerve pain is 1 to 2.5 mg of THC per dose, or 5 to 10 mg of CBD, taken once in the evening and held for 3 to 5 days before any increase. Nerve pain often responds to a balanced or CBD-heavy ratio, increases move in small steps of about 1 to 2.5 mg THC or 5 mg CBD, and the ceiling is set by side effects rather than a fixed number.
Topical Cannabis for Nerve Pain: What Works and How to Apply It
There is no single dose that works for everyone. Response depends on the cause of the nerve damage, the product, the ratio of THC to CBD, the method of use, and how your body handles cannabinoids. Treat every number below as a starting point for a conversation with your prescriber, not as a prescription.
Cannabis for Sciatic Nerve Pain: A Comprehensive Guide
Why nerve pain needs a different approach
Nerve pain (neuropathic pain) comes from damaged or misfiring nerves, not from fresh injury to tissue. It burns, tingles, stabs, or feels like electric shocks, and it answers to a different set of drugs than a sprained ankle does.
How to Use Cannabis for Nerve Pain
Cannabis does not repair nerve damage. Reviews of clinical trials report modest relief in some people and little or no relief in others, so dose testing is a search for your own response rather than a target to hit.
What is a starting dose of cannabis for nerve pain?
THC starting dose
Begin with 1 to 2.5 mg of THC by mouth, or one small puff if you inhale. Many people feel a clear effect at that level, and some do not. THC brings the pain relief in most studies, and it also brings the dizziness and the high.
CBD starting dose
CBD is often started at 5 to 10 mg per dose, once or twice per day. Trials in nerve pain have used much larger amounts, in the range of 50 to 200 mg per day, but those doses cost more and are not required to begin. CBD does not cause a high, though it can affect liver enzymes and change how other drugs behave.
THC to CBD ratios
- 1:1: the most common starting ratio for nerve pain, balancing relief with a manageable high.
- CBD-heavy (1:10 or higher): a first choice if you want to avoid intoxication or you are new to cannabis.
- THC-heavy: used for severe pain, with sedation, memory fog, and anxiety rising as the THC number climbs.
How does method of use change your dose?
- Inhaled (vaporizer or flower): effects start in 5 to 15 minutes, peak near 30 minutes, and fade in 2 to 4 hours. Easy to titrate one puff at a time.
- Oral (oil, capsule, edible): effects start in 60 to 120 minutes, peak at 2 to 4 hours, and last 6 to 8 hours. Stronger and longer, so a mistake takes longer to wear off.
- Topical: little to no psychoactive effect. Useful for skin level pain, with no reliable evidence for deep nerve pain.
A common plan pairs a small oral dose in the evening for overnight coverage with inhaled doses during the day, when short duration is an advantage.
How do you titrate up without overshooting?
- Choose one product and one method, then hold both steady while you adjust dose.
- Stay at the starting dose for 3 to 5 days.
- Note pain scores, sleep, and side effects each day.
- If relief is small and side effects are mild, raise by one step (about 1 to 2.5 mg THC or 5 mg CBD).
- Wait at least 3 days before the next increase.
- Stop rising when pain drops enough to function, or when side effects appear. Whichever comes first wins.
What should a dose log track?
A written log turns guesswork into data. Five lines per day are enough.
- Time of dose, product name, and milligrams of THC and CBD.
- Method (oral, inhaled, topical).
- Pain level before the dose and 2 hours after, on a 0 to 10 scale.
- Sleep quality and any side effects.
- Other medicines taken that day.
What side effects and risks should you watch for?
Dizziness, drowsiness, dry mouth, and short term memory trouble are the common complaints, and they grow with the THC dose. Some people feel anxious or panicky at higher amounts, and a small number develop repeated vomiting (cannabinoid hyperemesis syndrome) with heavy long term use.
Do not drive after a dose that makes you sleepy or slow. Cannabis is not advised in pregnancy, for anyone under 21, or for people with a history of psychosis.
Can you mix cannabis with prescription nerve pain drugs?
Cannabis adds to the sedation from opioids, benzodiazepines, gabapentin, and pregabalin. It also competes with drugs processed by the same liver enzymes, including warfarin and some seizure medicines.
Never stop a prescribed drug on your own to try cannabis. A clinician can adjust doses in a safe order, and some people do reduce other medicines with supervision.
Common questions about dosing
How long before cannabis helps nerve pain?
Inhaled doses can ease pain within 15 minutes. Oral doses need 1 to 2 hours. Full assessment of a new dose level takes a week or more, because nerve pain shifts from day to day.
Can CBD alone treat nerve pain?
Some people get relief from CBD with no THC, and others notice nothing until a small amount of THC is added. CBD is worth a trial if you want to avoid a high.
Does tolerance build up?
Yes, with regular use. Tolerance raises cost and pushes doses up over time. Days off, or the smallest dose that works, help keep the number steady.
Is a higher dose always stronger?
No. Past a point, more THC adds side effects faster than it adds relief. Many people find their best dose is lower than they expected.
Why product labeling matters for dosing
Dose accuracy depends on the label being right. Packages list THC and CBD in milligrams, and a gram of flower can vary by several points of THC between batches.
A store that prints cannabinoid content per package, keeps harvest dates visible, and stocks the same brands helps you repeat a dose that worked. Ask staff for the lab result when a number on the label is unclear.
The bottom line
Start at 1 to 2.5 mg THC or 5 to 10 mg CBD, hold that level for several days, and raise in small steps. Track what you take and how you feel, keep your prescriber in the loop, and let relief and side effects decide where the dose lands.