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Potential Risks & Side Effects of Marijuana

Each person responds differently to marijuana.

Like any medical option, the efficacy of marijuana may vary, and possible side effects exist. The effectiveness of a product will be dependent on your personal response and sensitivity to the chemical makeup. It is important to work with a patient care representative at a Verilife dispensary to help match products to your unique needs.

Dosing 101

Determining the optimal dose that will work best requires making adjustments along the way. What works for one person may not work for another; 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 marijuana is "start low and go slow.

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Make your doctor part of your care plan.

What you need to know before talking to your doctor about marijuana.

Find Out More

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



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


Sense of time

Marijuana 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 marijuana use can have an adverse effect on attention span.


Problem solving

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


Verbal fluency

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


Reaction time

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


Psychomotor control

Certain psychomotor skills may be influenced by marijuana use.

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

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

  • Anticoagulants
  • Antiplatelets

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

  • Sedative hypnotics
  • SSRI
  • TCA
  • Theophylline

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Usage and Precautions

You should take precautions before using marijuana if you have:

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

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

  • Are pregnant, may be pregnant, or are trying to conceive
  • Are breast feeding
  • COPD & Asthma (no inhalation)
  • Low blood pressure
  • 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 or recreational marijuana, we can help answer your questions. Our friendly patient care representatives are happy to talk - either over the phone, or in-person at any Verilife Illinois Marijuana Dispensary.

Our hours are 8 a.m. - 4:30 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.