Cannabis Dosing Guide

Why Dosing Matters

Cannabis affects everyone differently. Your ideal dose depends on your body weight, tolerance, metabolism, and the consumption method. Taking too much won't cause lasting harm, but it can produce an uncomfortable experience — anxiety, nausea, or paranoia that may last several hours.

The single most important rule: start low and go slow.

Understanding THC Milligrams

THC potency is measured in milligrams (mg). Rhode Island caps single transactions at 830mg of THC in infused products, but individual edible servings are typically standardized. Here's a general dosing guide:

Edible Dosing Tiers

• Microdose (1–2.5mg): Minimal psychoactive effects. Mild mood elevation or focus. Good for absolute beginners.
• Low dose (2.5–5mg): Noticeable but manageable effects. Light euphoria, relaxation. Recommended starting point for most new users.
• Standard dose (5–10mg): Clear psychoactive effects. Euphoria, altered perception, potential coordination impairment.
• High dose (10–25mg): Strong effects. Experienced users only. Significant impairment likely.
• Very high dose (25mg+): Intense effects. Not recommended for most consumers. High risk of uncomfortable side effects.

Dosing by Product Type

Flower (Smoking/Vaping Dry Herb)

Effects begin within 1–5 minutes and typically last 1–3 hours. This fast onset makes it easier to control your dose in real time.

• Beginners: Take one small puff, wait 10–15 minutes, assess effects before taking another.
• Flower potency typically ranges from 15–30% THC. A single puff of 20% flower delivers roughly 1–3mg of THC.
• Pre-rolls provide a convenient format but cannot be easily micro-dosed.

Vape Cartridges

Effects begin within 1–5 minutes and typically last 1–3 hours. Vape oil is more concentrated than flower, usually 70–90% THC.

• Beginners: Take one short puff (1–2 seconds), wait 10–15 minutes.
• Each puff delivers approximately 2–5mg THC, though this varies by device and draw length.

Edibles

Effects begin within 30 minutes to 2 hours and can last 4–8 hours or longer.

• Beginners: Start with 2.5–5mg. Cut a 10mg gummy in half or quarters.
• Eating on a full stomach may delay onset. Eating on an empty stomach may intensify effects.
• Effects are processed through the liver, producing a stronger and longer-lasting experience than smoking.

Concentrates

Effects begin within seconds to minutes and are significantly more potent than flower. Concentrates typically contain 60–90% THC.

• Not recommended for beginners. Even a small dab can deliver 25mg+ of THC.
• Rhode Island allows public possession of up to 5 grams of concentrate.
• If you do try concentrates, start with the smallest possible amount (a grain-of-rice-sized piece).

Tinctures

Placed under the tongue, effects begin within 15–45 minutes and last 2–6 hours. Allows precise milligram dosing via the dropper.

• Beginners: Start with 2.5–5mg as marked on the dropper.
• Hold under the tongue for 30–60 seconds before swallowing for faster absorption.

Cross-Border Pricing Context

Rhode Island's limited dispensary market means prices are notably higher than neighboring Massachusetts. If you're budgeting your dose:

• Rhode Island average: ~$5.67/gram before tax
• Massachusetts average: ~$4.17/gram, with some border dispensaries offering ounces as low as $78
• However, transporting cannabis across state lines is a federal offense, even between two legal states. Purchase and consume within the state where you buy.

Finding Your Dose

Dosing is personal. Consider keeping a simple log of what you consumed, how much, and how you felt. Key factors that affect your response:

• Tolerance: Regular users need higher doses. New users should always start at the lowest tier.
• Body weight and metabolism: May influence how quickly and intensely you feel effects, especially with edibles.
• Food intake: Edibles on an empty stomach can hit harder and faster.
• Hydration: Stay hydrated. Cannabis can cause dry mouth.
• Strain and product: Different strains and products produce different effects at similar THC levels.