Skip to main content
Loading promo...
Close Menu

Potential Risks & Side Effects of Marijuana

Each person responds differently

Like any medical option, the efficacy of cannabis may vary - and possible side effects exist. Particular strains will not always be effective for a given symptom. The effectiveness of a strain will be dependent on your personal response and sensitivity to the chemical makeup, and it is important for you to work with a patient care representative at the dispensary to help match the products to your unique needs.

Dosing 101

Figuring out the optimal dose that will work best for you usually requires making adjustments along the way. What works for one person may not work for another, and it also depends upon your level of comfort. Finding a balanced ratio of CBD and THC that creates the right combination of both compounds is the goal. The basic principle for dosing medical cannabis is “start low and go slow."

Making Doctor_icons-06.png

Make your practitioner part of your care plan.

What you need to know before talking to your doctor.

Find Out More

You should also be aware that cannabis use may cause short-term effects related to:  



Short-term memory impairment has been associated with THC consumption.


Sense of time

Cannabis has been shown to distort an individual’s perception of time, typically slowing time down.


Sensory perception

THC has been found to interact with receptors in one’s brain to heighten sensory perception.


Attention span

Long-term cannabis use can have an adverse effect on attention span.


Problem solving

Cannabis can diminish or impair an individual’s problem-solving skills.


Verbal fluency

Long-term cannabis use can have an effect on one’s verbal memory or ability to recall words.


Reaction time

Cannabis has been shown to impair one’s reaction time.


Psychomotor control

Certain psychomotor skills may be influenced by cannabis use.

Ask your doctor if your use of the following medications should be adjusted with the use of medical cannabis:

You should always check with your doctor or pharmacist regarding potential interactions with any medication you are currently taking. 

  • Anticoagulants
  • Antiplatelets

  • Aspirin
  • Barbiturates
  • Benzodiazepines
  • Dronabinol
  • Narcotics
  • Phenobarbital
  • Sedating anticholinergics

  • Sedative hypnotics
  • SSRI
  • TCA
  • Theophylline

AskYourDoctor3 Column Tall-02.jpg

Usage and Precautions

You should take precautions before using cannabis if you have:

  • Hypotension
  • Issues with blood glucose levels
  • Are on blood thinners

Do not use cannabis if you have any of the following conditions:

  • Are pregnant, may be pregnant, or are trying to conceive
  • Are breastfeeding
  • COPD & Asthma (no inhalation)
  • Ischemic heart disease
  • Impaired Immune System
  • Hypertension
  • Hypersensitivity to cannabinoids


Have Questions? We’ve Got Answers.

No matter your level of comfort or knowledge with medical cannabis, we can help answer your questions. Our friendly patient care representatives are happy to talk.

Our hours are 9 a.m. - 5:30 p.m. CST.


This website contains medical cannabis information and is restricted to individuals 21 years of age or older. Please confirm your age and state:

  • IL
  • MD
  • MA
  • NY
  • OH
  • PA

Did you know that most medical marijuana information is state-specific? We have dispensaries in each of the above states, along with state-specific resources for patients. For the best experience, please select a state.