Ventolin Inhaler & Accuhaler. Ventolin inhalers are the most widely used treatment for relief of the symptoms of wheezing and breathlessness associated with asthma. Ventolin inhalers provide effective short-term relief from asthma and can prevent asthma symptoms from occurring. Ventolin Asthma Inhaler. The Ventolin asthma inhaler contains the active drug, salbutamol, and helps to relieve symptoms of asthma attack or difficulty breathing. It is an inhaled drug and helps by relaxing the airways to enable easier breathing and can help to relieve an acute. The UK's 1st online pharmacy - Support available 8am-6pm - No hidden fees.