Before your symptoms get better, several weeks may pass. But dont lose hope and keep using Singulair. If anyway you notice that it has no effect, tell your doctor about this. Find together the most appropriate treatment and dosage for you. Another important fact when you buy Singulair and use it is not to exceed the regular dosage recommended by your doctor. If you use other medications dont cancel your treatment, just read their prospects carefully before combining them with Singulair. Also steroid medications for asthma administration must not be stopped suddenly, but if needed, by decreasing the dosage step by step. If you buy Singulair online, dont consider that reading this information is enough. Anyway, consider your doctor recommendations and do not take decisions by yourself. Health is a very delicate thing and only a qualified professional is able to give you the best instructions in medication. Buy Singulair online and inform yourself as much as possible, but remember that nothing can replace doctor's advice. If you notice any unusual manifestation generated by Singulair call your medic right away. The Singulair packet must be kept in a safe place, with neutral climate conditions, and out of reach of children.