Meaning & History. Meaning unknown. It first appears in this form in Thomas Malory's 15th-century compilation of Arthurian legends 'Le Morte d'Arthur', in which Gareth was a Knight of the Round Table, the brother of Sir Gawain.t first appears in this form in Thomas Malory's 15th-century compilation of Arthurian legends 'Le Morte d'Arthur', in which Gareth was a Knight of the Round Table, the brother of Sir Gawain.
Salbutamol (INN) or albuterol (USAN) is a short-acting Î²2-adrenergic receptor agonist used for the relief of bronchospasm in conditions such as asthma and chronic obstructive pulmonary disease (COPD).It is marketed as Ventolin among other brand names.albutamol is mostly taken by the inhaled route for direct effect on bronchial smooth muscle. This is usually achieved through a metered-dose inhaler (MDI), nebulizer, or other proprietary delivery devices.
Salmeterol is a long-acting beta2-adrenoceptor agonist (LABA), used in moderate to severe persistent asthma following previous treatment with a short-acting beta2-adrenoceptor agonist (SABA) such as salbutamol (albuterol).he primary noticeable difference of salmeterol from salbutamol, and other short-acting beta2-adrenoceptor agonists (SABAs), is its duration of action. Salmeterol lasts approximately 12 hours in comparison with the salbutamol, which last about 4â6 hours.