What Is CBD?
Author: Domeny.ForSale editorial team Published
In brief: CBD, or cannabidiol, is one of the compounds found in cannabis. It does not cause the intoxication typically associated with THC, but it can affect how you feel, cause side effects and interact with medicines. Its best-established medical use involves purified CBD in medicines used for specific epilepsy syndromes — this does not mean that shop-bought CBD oil effectively treats insomnia, pain or anxiety.
How does CBD differ from THC and hemp oil?
CBD belongs to the cannabinoids, a group of substances that affect the body’s signalling systems. The body produces its own cannabinoids, and some compounds derived from cannabis can influence processes related to pain perception, appetite and mood, among other things. However, this mechanism alone does not prove that a particular preparation is effective in treating a disease.
THC, or tetrahydrocannabinol, is primarily responsible for the characteristic intoxication caused by cannabis. CBD does not work in the same way, so equating it with recreational marijuana use is misleading. It is equally misleading to claim that CBD “has no effect at all on the mind” or has no effect on the body.
Hemp seed oil and CBD oil are different products. Oil pressed from hemp seeds is a food product and is not, in itself, a significant source of CBD. CBD oil contains cannabidiol or a cannabis extract dissolved in a carrier oil, such as MCT oil or hemp oil. The name and a leaf illustration on the packaging are not enough to establish its composition.
What is known about the effects of CBD?
Purified cannabidiol is an ingredient in a medicine used under medical supervision for specific epilepsy syndromes. In this treatment, the indications, a controlled dose, the quality of the preparation and safety monitoring all matter. Findings from studies of a medicine cannot automatically be applied to cosmetics, gummies or oils available for sale.
CBD is also being studied for anxiety, sleep problems and pain. Results depend on the particular problem, dose and study methods; they do not establish that any given CBD product is a proven treatment for these conditions. Customer reviews may describe people’s experiences, but they do not distinguish the substance’s effects from expectations, natural fluctuations in symptoms or other treatments.
For example, someone who wakes up during the night may look for an oil “for sleep”. However, if the cause is sleep apnoea, pain or the effects of a medicine they are taking, buying CBD does not solve the problem and may delay diagnosis. When symptoms persist, the first step should be to assess their cause, not choose an oil concentration.
Side effects and interactions with medicines
CBD can cause drowsiness, diarrhoea, reduced appetite and fatigue, among other side effects. Increased liver enzyme activity has also been observed during cannabidiol treatment, which may indicate strain on or damage to the liver. The risk depends on factors including the dose, other medicines and the person’s health — “natural” does not mean “safe for everyone”.
Cannabidiol can change the activity of enzymes that break down medicines, thereby affecting their concentrations in the blood. Particular caution is needed with medicines including antiepileptics, anticoagulants and sedatives. Alcohol and other substances that cause drowsiness may increase impairment.
If you take medicines, show a doctor or pharmacist the product’s full composition and the amount you plan to use before taking CBD. Do not stop your treatment or replace it with a cannabis preparation. CBD should be avoided during pregnancy and breastfeeding because there are insufficient safety data; it should not be given to children without medical guidance.
Do not drive if the preparation causes drowsiness, dizziness or reduced concentration. An additional risk is the presence of THC in some products, even when the buyer expects CBD alone.
How should you read a CBD product label?
Packaging may include terms describing the type of extract. Isolate means CBD that has been isolated, full spectrum means a mixture of cannabis constituents that may contain THC, and broad spectrum usually means an extract from which THC has been removed. These are claims that require confirmation through testing of the specific batch, not guarantees of composition.
Before assessing a product, check:
- The amount of CBD in milligrams: in the whole package and per millilitre or individual serving. A percentage alone may not be clear enough.
- The laboratory report: whether it matches the batch number and states the CBD and THC content. Separately, check whether it covers contaminants such as heavy metals, pesticides and solvent residues.
- The product’s intended use: a cosmetic is not a preparation for consumption, and a commercial product does not become a medicine simply because the seller claims it has therapeutic effects.
Calculation example: a 10 ml bottle containing 1000 mg of CBD has 100 mg of CBD in 1 ml. This does not mean there is a fixed amount in each drop, because drop size depends on the dropper and the liquid. This is a way to interpret the content, not a dosage recommendation — there is no single universal CBD dose for every use.
What should you check before buying in Poland?
A product’s status depends on factors including its composition, THC content, intended use and the rules for placing that product category on the market. Permission to cultivate certain types of hemp does not automatically mean that every extract obtained from them may be sold as food. A product’s presence in a shop does not, in itself, confirm compliance with regulations either.
Check current rules on food and CBD extracts in notices from Poland’s Chief Sanitary Inspectorate (GIS) and European Commission documents on novel foods. A medicine’s status and indications can be confirmed in official registers of medicinal products and documentation from Poland’s Office for Registration of Medicinal Products, Medical Devices and Biocidal Products (URPL) or the European Medicines Agency (EMA). The information above is general and does not constitute individual medical or legal advice.
If you are considering CBD for a specific condition, prepare a list of your medicines and a photograph of the label of the product you have selected. With this information, it is easier to discuss the actual risks and available options with a doctor or pharmacist.
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