Dr. Hanif warmly welcomes you! Thanks for consulting at my virtual clinic. I have carefully worked through your case, and can well realize your health worries. Being your physician, I want to assure, I will take care all of your medical concerns. Both Ventoline (you already giving him) and this new drug Aeroflux (salbutamol) are beta2 agonists class of drugs. They relax the smooth muscles in airways to give breathing comfort to the baby and to alleviate wheezing and difficulty breathing. They also have effects on receptors in the heart, named beta 1 receptors. So, you may not combine the same drugs in a kid, as it may lead to intoxication. Consult his doctor to choose one of them. Call the physician office front desk either, if you can t manage a visit. They will transfer your call to the physician and he will give you the solution in no time. Hope I answered all of your questions. In future, if you need further, detailed and quick assistance on any health issue, feel free to click on Ask me a question directly from my profile. Have a wonderful time ahead. Regards! DR. MUHAMMAD M. HANIF USA