The medication is most likely to be a selective ß2-agonist such as salbutamol, which leads to a tremor, palpitations, headaches and hypokalaemia at high doses. Washing the mouth after administration of inhaled steroids is recommended, no matter what dose is given. Atrovent is the trade name for ipratropium bromide, which is more useful in chronic obstructive pulmonary disease than in asthma, although it can be used in an acute asthma attack.