Cannabis is enjoying increasing popularity – but, as with any active substance, unwanted side effects can occur. We shed light on the most common side effects, classify them, and show you what to look out for. Transparency creates safety – and helps you make informed decisions.
Acute Physical Reactions
The body reacts to cannabinoids – sometimes subtly, sometimes clearly noticeable. Most acute effects subside after a few hours. Nevertheless, it's worth knowing the typical accompanying symptoms.
Dry Mouth and Thirst
A dry mouth is one of the most common side effects. Cannabinoids affect saliva production – the result: a furry feeling on the tongue and increased thirst. A glass of water within reach helps. Some swear by herbal tea or sugar-free candies to stimulate saliva flow.
Circulation and Heart Rate
Cannabis can temporarily lower blood pressure and slightly increase heart rate. Dizziness can occur when standing up – especially at higher doses or if you are still inexperienced. Slow movements and a comfortable sitting position provide relief. People with cardiovascular diseases should seek medical advice beforehand.
Red Eyes and Tired Lids
The blood vessels in the eyes dilate – resulting in red eyes. No cause for concern, but visually striking. Eye drops can help if this bothers you. Heavy eyelids are also typical, especially with strains that have a calming character. A sign that the body wants to rest.
Psychological Effects and Mood
Cannabis affects the central nervous system – and thus also thoughts, feelings, and perception. The psychological effects vary greatly depending on the strain, dose, and individual constitution.
Restlessness and Anxiety
Some people experience inner restlessness or anxiety, especially at high THC concentrations or in unfamiliar surroundings. Thoughts race, and mood can shift. Lower dosages and CBD-rich strains can counteract this. A familiar, calm environment also helps.
Concentration and Memory
Short-term memory can be temporarily impaired – conversations fall flat, thoughts jump. Complex tasks become more difficult. These effects are temporary and subside with the effect. Anyone who needs to work or study concentrated should plan cannabis accordingly.
Fatigue or Inner Restlessness
Depending on the strain and the day's condition, cannabis can cause fatigue or, paradoxically, lead to inner restlessness. Indica-dominant strains tend to relax, while Sativa varieties can have an activating effect. The right strain at the right time – that makes all the difference.
Long-term Aspects of Regular Use
Anyone who uses cannabis regularly over a longer period should also keep an eye on the long-term side effects. Not all of them occur in everyone – but mindfulness is worthwhile.
Tolerance Development
The body gets used to cannabinoids. Over time, higher doses are needed for the same effect. Breaks help to lower tolerance and restore sensitivity. Many users consciously take breaks from consumption – a reset for body and mind.
Respiratory Tract during Inhalation
Smoking irritates the respiratory tract – whether tobacco or cannabis. Coughing, irritation, and, in the long term, chronic complaints are possible. Vaporizers heat the material more gently and significantly reduce the strain. Oils, capsules, or edibles bypass the respiratory tract completely.
Motivation and Daily Structure
Regular consumption can affect motivation – some people report a lack of drive or withdrawal from social activities. The balance between relaxation and daily structure is crucial. Honest self-reflection helps to counteract this in good time.
When Caution is Advised
In certain situations, particular caution is required. Some circumstances necessitate medical supervision or abstaining from cannabis.
Interactions with Medications
Cannabis can interact with other medications – such as blood thinners, antidepressants, or tranquilizers. The effect can be amplified or weakened. Anyone taking regular medication should consult a doctor beforehand. Transparency protects against unwanted surprises.
Pregnancy and Breastfeeding
During pregnancy and breastfeeding, experts advise against cannabis use. The active ingredients reach the child via the placenta or breast milk – possible effects on development have not been sufficiently researched. When in doubt, err on the side of caution.
Pre-existing Conditions and Individual Sensitivity
People with pre-existing mental health conditions – such as psychosis, anxiety disorders, or depression – should be particularly careful. Cannabis can worsen symptoms or trigger episodes. Medical advice is also advisable for cardiovascular diseases, liver, or kidney problems. Every body reacts differently – taking individual sensitivity seriously is not a weakness, but self-care.