Medical Cannabis Tincture Dosage Chart: Starting Doses in mg

Quick answer

No single medical cannabis tincture dosage chart fits every patient. Clinical guidance for oral cannabis products follows one pattern: start at 1 to 2.5 mg THC per dose, hold that dose for two to three days, then raise it by 1 to 2.5 mg only if you feel nothing. Many medical users settle between 5 and 20 mg THC per dose. Doses over 40 mg THC per day raise the odds of anxiety, racing heart, and short term memory trouble.

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Why one chart cannot cover every patient

Tinctures are swallowed or held under the tongue, so THC reaches the liver before it reaches peak blood levels. Body weight, liver enzyme activity, tolerance, and the CBD to THC ratio all shift the result. A 5 mg dose can feel mild to one person and overwhelming to another. That is why titration matters more than any printed number.

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Oral THC dose ranges

The ranges below describe milligrams of THC per single dose for adults in state medical programs. Treat them as a map, not a prescription.

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• 1 to 2.5 mg: microdose. Subtle calm, no impairment. Sensible first step.
• 2.5 to 5 mg: low dose. Light relief for sleep onset, appetite, and mild pain.
• 5 to 15 mg: moderate dose. Common range for chronic pain, nausea, and muscle spasm.
• 15 to 30 mg: high dose. Sedation and clear impairment. Use only under clinician direction.
• 30 mg and above: very high dose. Strong chance of unpleasant side effects.

How to read a tincture label

1. Find the total THC in the bottle, listed in mg.
2. Find the bottle volume in mL.
3. Divide total mg by total mL to get mg of THC per mL.
4. Check the dropper size. A standard full dropper holds 1 mL, which is about 20 drops.
5. Divide mg per mL by 20 to get mg of THC per drop.

Example: a 30 mL bottle labeled 300 mg THC holds 10 mg per mL, or 0.5 mg per drop. Four drops is a 2 mg starting dose.

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Titration steps

1. Pick a day when you have no driving or work obligations.
2. Shake the bottle and measure your starting dose of 1 to 2.5 mg THC.
3. Take it with food at the same time each day.
4. Wait at least 24 hours before judging the effect. Onset runs 30 to 120 minutes, peak effects arrive at 2 to 4 hours, and total effects can last 6 to 8 hours.
5. Hold that dose for two to three days.
6. Increase by 1 to 2.5 mg if symptoms persist and side effects are absent.
7. Stop at the lowest dose that controls your symptoms.
8. Write the dose, time, and effect in a log so patterns become visible.

Common side effects and what to do

• Dry mouth or red eyes: sip water and wait it out.
• Dizziness or racing heart: sit down, stay hydrated, avoid caffeine.
• Anxiety or racing thoughts: remind yourself the effect fades, and do not redose.
• Heavy sedation: sleep it off and lower the next dose by half.

Do not take a second dose to chase a stronger effect on the same day. Oral THC stacks, and the second dose lands on top of the first.

When to call a clinician

Contact the clinician who authorized your medical cannabis card if you get chest pain, fainting, severe vomiting, or panic that does not settle. Skip tinctures entirely if you are pregnant, breastfeeding, under 21, or taking sedatives, blood thinners, or transplant drugs. Tincture dosing is not a substitute for a treatment plan, and it does not replace prescription medication.