
Responsible Use
State certified cannabis is regulated and tested. Learn how to consume safely and responsibly.
Find cannabis retailers throughout the state.
Find a store
Safe Consumption
Safe Storage
If you have more than one ounce of marijuana in your home, it needs to be locked up. But it is best to keep any amount in a closed, locked container out of reach and out of sight of children and pets.
The way you store cannabis should change as children get older. Safe storage around young children may not stop a curious teenager who might want to try it. Take additional precautions as your kids grow older.
Eating or drinking cannabis can make children and pets sick. If your kids or pets accidentally consume marijuana they may have problems walking or sitting up, feel sleepy, and even have difficulty breathing. If your child or pet ingests marijuana and/or the reaction seems serious, call the numbers below.
Secondhand Smoke
Secondhand cannabis smoke has many of the same toxic compounds found in tobacco smoke. These chemicals, including tetrahydrocannabinol (THC), could affect anyone who breathes it in, including pregnant women, babies, and children. While research on secondhand cannabis smoke is still developing, breathing in smoke of any kind is not healthy.
Mixing Marijuana and Alcohol
Using alcohol and marijuana together results in greater impairment than either substance alone. While more research is needed, combining substances is associated with greater risks. When alcohol and cannabis are used together, it enhances the effects of both drugs, and can lead to harmful health consequences. Alcohol may also increase the length of time tetrahydrocannabinol (THC) stays in the body.
Driving While High
Driving when you are impaired or “high” is dangerous and illegal, and you could be charged with Operating Under the Influence (OUI). Cannabis may affect your ability to drive safely by slowing your reaction time, impacting your decision-making, and reducing your ability to attend to more than one thing at a time. The effects can last different lengths of time for different people; your tolerance, metabolism, and the type of product you consume all make a difference.
Just like alcohol, there are open container laws for marijuana. You cannot have an open container of cannabis in the passenger area of your car or anywhere the public has access. For more information, see Know the Laws.
Synthetic Cannabinoids
Synthetic cannabinoids are artificially produced products that mimic tetrahydrocannabinol (THC) and other cannabinoids when consumed. Although some pharmaceutical-grade synthetic cannabinoids, such as Marinol, are approved by the U.S. Food and Drug Administration (FDA) for certain medical conditions, unregulated synthetic cannabinoids can be very dangerous.
Unregulated synthetic cannabinoids can consist of many different chemical combinations. They are often referred to as Spice, K2, or – misleadingly – synthetic marijuana or “fake weed.” However they should not be considered cannabis. There have been cases of severe injury and death linked to unregulated synthetic cannabinoids use.
Safety Tip
If marijuana becomes a problem, seek treatment.
Visit the Massachusetts Substance Abuse Helpline or call 800-327-5050. The Helpline is the only statewide, public resource for finding substance use treatment and recovery services. Helpline services are free and confidential. Caring, trained Specialists will help you understand the treatment system and your options.
Keep cannabis products locked away, and out of reach of children and pets.
Remember: Getting high could impair your decision-making.
Check in with your doctor if you are using marijuana and are pregnant or planning to become pregnant.
Driving with cannabis in your vehicle? Always keep it in a closed container locked in your glove box or trunk.
Start low and go slow with edibles! They can take one to four hours to take effect.
Always get a ride when using cannabis. Never get behind the wheel.
Only adults 21 or older can purchase, consume, or grow adult-use cannabis.
Home Manufacturing