The effects of THC vapes can vary depending on the amount used, THC concentration, frequency of use, and individual health. Reported side effects include:

• Anxiety – Some users may experience increased nervousness, worry, or feelings of unease.
• Paranoia – High THC concentrations can lead to suspicious thoughts or an exaggerated sense of fear.
• Dizziness or Lightheadedness – THC may temporarily affect balance and coordination, making some people feel faint or unsteady.
• Rapid Heart Rate – An increased heart rate is a common short-term effect, particularly after using products with high THC levels.
• Dry Mouth and Red Eyes – These are among the most frequently reported temporary effects of THC use.
• Nausea – Some individuals may experience stomach discomfort or nausea, especially after consuming large amounts of THC.
• Coughing and Throat Irritation – Inhaling vapour may irritate the throat and airways, leading to coughing or discomfort.
• Shortness of Breath or Chest Discomfort – Some users report breathing difficulties or chest pain, particularly with frequent vaping or contaminated products.
• Impaired Memory and Concentration – THC can temporarily affect attention, decision-making, and short-term memory.
• Psychotic Symptoms – In rare cases, especially with high-potency THC products, individuals may experience hallucinations, severe confusion, or psychotic episodes. The risk may be higher in people who are susceptible to mental health disorders.
• Lung Health Concerns – Research suggests that vaping THC may contribute to lung irritation, inflammation, and, in some cases, serious vaping-related lung injury (EVALI), particularly when unregulated products are used.
• Risk of Dependence – Frequent use of high-THC vape products may increase the likelihood of developing cannabis dependence or cannabis use disorder.