Cannabis

Flower, joints, and dry-herb vapes

Look for Total THC on the label. 10% THC means 100 mg per gram of flower before heating. How much you breathe in will vary.

If you’re new to inhaling, choose flower with 10% THC or less. Take one small puff and give it up to 30 minutes before more. Dry-herb vapes can feel stronger than smoking the same amount.

Carts, dabs, and concentrates

Check the THC percentage. Concentrates can be very strong. There’s no fixed dose per puff. Choose lower strength, take a small puff, and wait. Use only products meant for your device. Don’t vape oral oil.

Edibles, drinks, and capsules

Check mg of THC per piece and per package. Four equal gummies labeled 10 mg total are 2.5 mg each. If you’re new, choose 2.5 mg or less. Wait up to 4 hours for the full effect before taking more.

Oils, tinctures, and sprays

Read mg per mL or per spray. Use the marked dropper or syringe. With 10 mg/mL oil, 0.25 mL is 2.5 mg. Some oil held in the mouth gets swallowed and can take hours to fully kick in.

Creams, balms, and patches

Use the label’s amount and timing. Patches can deliver THC through the skin. Milligrams in a patch or jar don’t tell you the equivalent edible dose.

If someone took too much

Call Poison Control for severe anxiety, vomiting, or an uncertain amount. Call right away if a child may have taken any, even if they feel fine. Avoid mixing THC with alcohol or driving while high.