Please note that there is a much larger group of patients using the aforementioned paracetamol compared to those using medical marijuana.
Medical marijuana is treated as a narcotic drug - looking this way, on a par with, for example, morphine m.in. Sevredol:

https://www.gdziepolek.pl/produkty/70799/sevredol-tabletki-powlekane/apteki?pvid=119665#stacjonarne

The drug is constantly available in wholesalers, but the current availability is 29% - which means that not all pharmacies decide to order it on their own stock - this is probably dictated by the lack of interest in this drug in other pharmacies or ordering under a specific prescription.

Narcotic drugs are subject to special restrictions when it comes to disposal. It is necessary to report to the WIF and fill in the appropriate documentation. Therefore, if a pharmacy knows that it will not sell S-Lab or Aurora or the aforementioned Sevredol, it simply does not stock it. Especially since mm has relatively short expiry dates - if the dried products do not rotate in a given pharmacy, the risk that the product will expire is high.

The sale of medical marijuana is handled by pharmacies that are close to specialists issuing this type of prescription, and the fact that a pharmacy has a permit to trade in narcotic drugs does not mean that it will order dried medical marijuana as soon as it is available in wholesalers. On top of that, there is the fact that the pharmacy may not even have a contract with the wholesaler selling dried herbs and does not know that the product is currently available - if there are no patients who come with this type of prescription.

Thank you Angelika for the answer, I am more concerned with whether pharmacies that have a permit to sell medical marijuana really still have it in stock. Because the maximum percentage of availability for the most popular varieties such as S-lab is usually 33-34%, while in the case of other drugs, e.g. paracetamol, it is even 80%. It turns out that some pharmacies simply do not sell medical marijuana and therefore the availability is so low. However, at the moment 5 varieties (S-lab 18 and 22, Aurora 20 and 22, Canopy) have an availability of over 20%. This would mean that pharmacies that can sell medical marijuana have several types/varieties available, so at the moment the availability compared to 1-2 years ago, is relatively good. I ask this in the context of the market analysis of a publicly traded company, and the competitiveness of the medical marijuana market, where new suppliers such as ODI Pharma, Medizin, Four Twenty have been entered with mixed results.