Some Tips to Keep Elderly Cannabis Users Out of the ER

We’ve all heard purveyors of fine cannabis warn, “This ain’t your grandpa’s weed.” Well, someone needs to tell that to grandpa.



A recent study published in the Journal of the American Geriatrics Society found that the rate of cannabis-related trips to the ER among seniors increased by an astounding 1,808% between 2005 and 2019. While it may sound like the setup for a joke about beanbag chairs in nursing homes, the findings have geriatricians genuinely concerned.

Older adults are at higher risk for adverse health effects from cannabis and other psychoactive substances. Part of the problem is that many seniors think they know what to expect from cannabis because they tried it decades ago. But cannabis today is far more potent than the 3–4% THC of the 1970s; modern strains and concentrates can reach 90% THC or more.

As a result, seniors may end up in the ER not from overdosing on THC per se, but due to secondary consequences such as falls (caused by slowed reaction time), cardiovascular issues, paranoia, delirium, or even psychosis.

That doesn’t mean older adults can’t enjoy cannabis — they absolutely can. Here are some tips to reduce risks:

• Choose low-THC strains: Start with products labeled with very low THC until tolerance is established. Every dispensary product in California has THC content printed on the label, and budtenders can guide choices.
• Microdose with vapes: Vape pens and cartridges (even though some exceed 90% THC) allow for one-hit dosing. Some cartridges are available at 20% potency — perfect for cautious experimentation. Take a small hit, wait 20 minutes, then decide if more is tolerable.
• Be careful with edibles: Edibles can be unpredictable due to metabolism, blood sugar, or food intake. Their effects are stronger and longer-lasting compared to inhaled cannabis. Encourage seniors to try other methods first or start with very small edible doses.
• Pick the right strain: Effects vary widely. Expecting a happy, giggly sativa high but ending up with a heavy indica couch-lock can be disconcerting. Be specific with budtenders about the effects you’re looking for — whether focused, inspired, relaxed, or social.

In short, it’s never too late for seniors to rediscover cannabis, but a little caution can keep the experience joyful rather than sending them to the ER.