Driving & Cannabis
Do not drive under the influence of cannabis. THC impairs reaction time, coordination, and judgment. Effects can last 4–8+ hours depending on dose and method. Even in places where cannabis is legal, driving while impaired is illegal and dangerous. Plan ahead: use a designated driver, rideshare, or public transit.
Pregnancy & Breastfeeding
Health authorities advise against cannabis use during pregnancy and while breastfeeding. THC can cross the placenta and enter breast milk. Research on long-term effects is limited. If you are pregnant or nursing and use cannabis, speak with your healthcare provider.
Workplace
Many employers have drug-free workplace policies. Cannabis can remain detectable in urine for days or weeks after use. Even in legal states, employers may test and take action. Know your employer's policy before using.
Drug Interactions
Cannabis can interact with other medications. THC and CBD are metabolized by liver enzymes (CYP450) and may affect:
- Blood thinners (e.g. warfarin) — CBD may increase levels
- Sedatives — May increase drowsiness
- SSRIs/antidepressants — Possible interactions
- Immunosuppressants — CBD may affect levels
Always tell your doctor if you use cannabis, especially if you take prescription medications.
Under 21 / Minors
In most legal jurisdictions, cannabis is restricted to adults (21+). Adolescent brain development may be affected by cannabis use. This site is for educational purposes; follow your local laws.
Drug Testing
Cannabis can stay detectable for days or weeks after use. Detection windows vary:
- Urine: 3–30+ days (occasional use: ~3–7 days; heavy use: weeks)
- Blood: Hours to 1–2 days
- Saliva: 24–72 hours
- Hair: Up to 90 days
There is no reliable way to "flush" THC. Abstinence is the only guarantee. Know your employer's policy.
Traveling with Cannabis
Airports & flights: Cannabis is illegal under federal law in the US. TSA refers to law enforcement. Do not fly with cannabis, even between legal states.
Crossing borders: Never cross international borders with cannabis. Penalties can be severe.
Driving between states: Federal law applies on highways. Legal risk remains even in legal states.
Cannabis and Pets
Caution: THC is toxic to dogs and cats. Even small amounts can cause vomiting, lethargy, and in severe cases, coma. Never give your pet cannabis intended for humans.
CBD products marketed for pets exist, but research is limited. The FDA has not approved cannabis for animal use. If you consider CBD for your pet, consult a veterinarian and use only products designed for animals.
Disclaimer: This information is for educational purposes only. Consult a healthcare provider for personalized advice.