Lasma 10 is commonly used for allergies and asthma-related symptoms, and many people take it long term under medical supervision. It is generally considered safe, but prolonged use may occasionally be associated with side effects such as headache, stomach upset, sleep disturbance, mood changes, anxiety, vivid dreams, or rarely depression-related symptoms. Since you are currently symptom-free, regular follow-up with a physician or allergy specialist is advisable to review whether you still need daily treatment and to monitor for side effects. Do not stop the medicine suddenly without discussing it with your doctor, especially if it has been controlling your breathing symptoms well.