Syrup is not recommended for children under 5 years old. It is important to consider whether the child can cough well. I still haven't dared to give my child any cough syrup. We only treat the nose and give warm drinks.
The word "Альвенорм" appears to be a proper noun, likely a brand name, product name, or something similar. It does not have a direct translation into English as it is not a standard word in Russian. It retains the same spelling when transliterated to English: "Alvenorm."
Hello! Unfortunately, I cannot provide medical advice as I am not a doctor. However, syrups for dry cough usually contain ingredients that moisturize the mucous membrane of the throat and reduce irritation. You can go to a pharmacy and ask the pharmacist to recommend a suitable syrup for your child. Also, remember to follow the usage instructions and not exceed the dosage. I hope your little one gets well soon!