How do you dose RSO?
Start with a dose about the size of a grain of rice — roughly 10 mg — taken about an hour before bed. Stay there for a few days, then increase by another rice grain every 3 to 4 days only if you feel comfortable. Most patients find their relief within a few weeks and simply stay at that dose. The whole rule is start low, go slow.
RSO is concentrated, so the difference between "just right" and "way too much" is tiny. The good news: dosing it well isn't complicated. If you only remember one thing, remember to start small and move up slowly — you can always take more tomorrow.
Why "start low, go slow" matters
RSO is far more concentrated than flower or most edibles, and it's usually high in THC. A dose the size of a grain of rice can contain as much active cannabinoid as several strong edibles. Taking too much won't harm you long-term — you cannot fatally overdose on cannabis — but it can leave you feeling uncomfortably high, dizzy, or anxious for a few hours. Starting low avoids that, and going slow lets your body build tolerance so you stay comfortable as your dose grows.
What a dose actually looks like
When people say "a grain of rice," they mean it literally — a small drop of thick oil about the size of a short grain of white rice. That's roughly 10 mg, or about a half to one notch on a dosing syringe.
- Starting dose — about half a grain to one grain of rice (≈10 mg).
- Squeeze a tiny amount onto a fingertip, a spoon, or a small piece of food.
- Don't eyeball big amounts. If it looks like more than a grain of rice, it's too much for a starting dose.
A simple week-by-week schedule
This is a gentle schedule for everyday symptom relief — pain, sleep, nausea, appetite. Move at your own pace. There's no deadline, and staying at a lower dose that works is completely fine.
One rice-grain dose (≈10 mg), about an hour before bed. Stay here for several nights and notice how you feel — how you sleep, how you wake up, whether symptoms ease.
If the starting dose feels fine, add about one more rice grain every 3 to 4 days. Many patients reach the relief they need somewhere in here — and just stop climbing.
Once symptoms are managed at a dose you tolerate well, hold steady. Some patients split it — a little in the daytime, more at night. If a dose ever feels like too much, drop back to the last one that felt right.
How to take it
- Swallow it directly — squeeze the dose onto a fingertip or spoon and take it.
- Put it under your tongue for a minute or two, then swallow, for a slightly faster onset.
- Mix it into food — a bite of bread, a little peanut butter, or a capsule — if you don't like the taste.
Taken by mouth, RSO comes on gradually over one to two hours and lasts several hours. That slow build is exactly why you wait before taking more — give the first dose time to fully arrive.
If you take too much
It happens, and it passes. If you feel too high — dizzy, anxious, too sedated — remember it isn't dangerous and it will fade on its own within a few hours.
- Get comfortable somewhere safe and quiet, and rest or sleep it off.
- Hydrate with water, and have a light snack if you can.
- Don't take more to "fix" it — wait it out.
- Reduce your next dose back to the last amount that felt right.
A few things that help
- Keep it simple at night. Starting before bed means the strongest effects come while you sleep.
- Write it down. A quick note of your dose and how you felt makes it easy to find your sweet spot.
- Be patient with changes. Give any new dose a few days before deciding it isn't working.
- Tell your care team. Especially if you're in treatment or take other medications.
How much RSO should I start with?
Start with a dose about the size of a grain of rice — roughly 10 mg — taken about an hour before bed. Stay there for several days before increasing, so you learn how your body responds.
How do I increase my RSO dose?
Go slow. Increase by about one rice-grain-sized amount every 3 to 4 days, only if the current dose feels comfortable. Many patients reach effective relief and simply stay there.
What does a grain-of-rice dose look like?
A small drop of oil about the size of a short grain of white rice — roughly 10 mg, or a half to one notch on a dosing syringe. RSO is concentrated, so a little goes a long way.
When is the best time to take RSO?
Most patients start with a single dose about an hour before bed, since RSO is usually high in THC and can cause drowsiness. A small daytime dose can be added later once you know how it affects you.
What if I take too much?
If you feel too high, you took more than you needed. You cannot fatally overdose on cannabis — rest somewhere safe, hydrate, and reduce your next dose. The effects fade within a few hours.
How long until RSO works?
Taken by mouth, RSO builds over one to two hours and lasts several hours. Finding your comfortable dose usually takes a few weeks of small, gradual increases.
Free RSO, with guidance to match
2nd Star provides Medical Grade RSO — free of charge — to New Mexico patients, and we pair every supply with clear dosing guidance. Your request is private and reviewed by a real person.
Request free RSOThis guide is for education and is not medical advice. RSO is not a proven cure for any disease. Dosing varies from person to person — always talk with your doctor or care team before starting cannabis, especially if you are in treatment or take other medications.