I'm just looking for information before I see the asthma nurse next month. I am on loratadine 10mg daily for 'hayfever asthma.' I have tried various others and find this one the best. Can I add another one to this to see if it helps? I need to ask the pharmacist this question really to check with the meds I'm on but thought I would ask on here as people on here have so much knowledge and experience. I normally react to pollens/moulds February to November.