klotsid

Could you clarify what you mean by "klotsid"? It could refer to different things (a real substance such as a drug or chemical, a brand or company name, or possibly a fictional/placeholder term). If you can specify the context (for example: real pharmacological compound, country or language, approved uses or indications), I can generate a concise, neutral wiki-style article under 300 words. If you’d prefer a neutral, fictional entry in the meantime, I can provide that as well.