Subclasses of "Drugs for asthma & prophylaxis"

Anticholinergic bronchodilators

Antihistamines anti-allergies & hypo-sensitisation

Combined bronchodilators

Cromoglycate & related drugs

Leukotriene receptor antagonists

Long-acting selective β-adrenoceptor stimulants

Methyl xanthine derivatives

Respiratory corticosteroids

Short-acting selective & β2-adrenoceptor stimulants

Theophylline & related drugs