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It looks like you shared some great information about asthma medications—distinguishing nicely between reliever medicines (like salbutamol and salmeterol) that open up the airways quickly, and preventer medicines (like beclometasone, fluticasone, and montelukast) that help reduce inflammation over time.

How can I help you with this today? Are you looking for more details on how these medications work, or perhaps writing something up for a school project or health presentation?