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Drugs

Short-term effects

Cannabis has different effects on different people. The effects will vary depending on many factors including the type and amount of product used. Some people who use cannabis may feel relaxed and happy. Others may become quiet and withdrawn or experience anxiety, panic attacks, fearfulness and paranoia.

Short-term effects

Immediate physical effects of cannabis include red eyes, increased heart rate, drop in blood pressure, and light-headedness.

When impaired by cannabis people may also experience changes to their perception of the time and the space around them. They may have difficulty with coordination, thinking, problem-solving and remembering things.

How long does cannabis affect the body?

There are different methods for using cannabis. Different methods have unique timing and lengths of effect. Take this into account when planning a ride home, parenting responsibilities, and work responsibilities.

The most common ways to use cannabis are:

  • Inhalation (includes smoking, vaporizing, dabbing). When inhaled, cannabis usually has an effect within minutes.  Effects generally last for 1 - 4 hours, but may last up to 24 hours.
  • Ingestion (edibles, tinctures, oils, and capsules). When eaten, cannabis products take longer to have an effect (30 minutes to 2 hours), and the effects can last for 4-12 hours but may last up to 24 hours.
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