What should I do if I have a bad reaction to a product from a dispensary?

Stay Calm and Assess Your Symptoms

A bad reaction to a cannabis product can feel unsettling, but most cases are temporary and manageable. The first step is to remain calm. Panic can worsen symptoms and cloud your judgment. Common reactions include dizziness, nausea, rapid heart rate, anxiety, paranoia, or extreme drowsiness. Less common but more serious symptoms may include confusion, chest pain, or difficulty breathing. Sit down in a safe, quiet space, and drink water if you are able. Avoid caffeine or alcohol, as they can intensify discomfort. If symptoms are severe or you are concerned, call a healthcare provider or poison control center immediately. In the U.S., you can reach Poison Control at 1-800-222-1222. If it is an emergency, call 911 and inform the dispatcher that you have consumed cannabis.

Know the Cause: Overconsumption and Product Variability

Most bad reactions stem from overconsumption-taking more than your body can comfortably handle. This is especially common with edibles, which can have delayed onset (30 minutes to 2 hours) and last much longer than inhaled products. A person may consume an additional dose thinking the first is not working, only to experience intensified effects later. Another factor is variability in product potency. Even in regulated markets, individual tolerance varies, and a product labeled with high THC content may affect you differently than expected. Some people are also sensitive to specific cannabinoids like THCV or to terpenes such as limonene or pinene, which can cause anxiety in high doses. Understanding your own tolerance and starting low and going slow is the most effective prevention.

Document What You Took

Once you are safe, write down as much as you can about the product. Include the brand, product name, type (flower, concentrate, edible, tincture, etc.), the amount consumed, and the time of consumption. Note the cannabinoid content-THC percentage or milligrams, and any CBD levels. Also record the batch or lot number if available, and where you purchased it (the dispensary name and location). This information is valuable for two reasons: it helps you understand what triggered the reaction, and it provides essential data if you need to report a quality or safety issue.

Contact the Dispensary

Reputable dispensaries in legal markets are committed to product safety and customer health. After you recover, call or visit the dispensary with your documented information. A knowledgeable budtender or manager can discuss the product, verify its testing data, and offer insight into whether the reaction is typical for that product or may indicate a problem. They may also guide you on how to return any unused portion. Be direct and factual-describe what you consumed, your reaction, and what you did to address it. Most licensed dispensaries take customer feedback seriously because it helps them improve their selection and service.

Reporting to Regulators

If you suspect the product was contaminated, mislabeled, or involved in a broader issue, report it to your state's cannabis regulatory agency. Every legal market has a system for consumer complaints and product recalls. For example, in California, you can contact the Department of Cannabis Control; in Colorado, the Marijuana Enforcement Division. Provide the batch/lot number and purchase details. Regulators use this data to investigate and, if necessary, issue recalls to protect public health. This step is not about punishment-it is essential for maintaining safety standards in a market that relies on transparency.

Prevention for the Future

Learn from the experience to make better choices next time. Apply the principle of "start low and go slow," especially with high-potency products or new formats like concentrates, beverages, or high-dosage edibles. Keep a personal journal of your consumption and reactions, including your mood, setting, and food intake beforehand. Know your limits and respect them-dose can always be adjusted upward, but you cannot undo an overdose once ingested. When shopping, ask budtenders for products that match your tolerance and experience level, and request lab-test results if you have concerns about specific cannabinoid or terpene content.

Do Not Self-Diagnose or forgo Medical Advice

This article provides general guidance and is not a substitute for professional medical attention. If you have a medical condition or are taking medications, consult a healthcare provider before using cannabis. Symptoms that persist or worsen beyond a few hours require professional evaluation. Likewise, if you suspect an allergic reaction (such as hives, swelling, or breathing trouble), seek emergency care. Responsible use means knowing when to ask for help-and there is no shame in prioritizing your health.