<prompt> Most unpleasant side effect of salbutamol isTremorsHypertensionRhinorrhoeaHeadache  <response>: Ans. a Tremors. Ref: KD Tripathi, Pharmacology, 4th ed., 125, 237Salbutamol is highly selective beta, agonist used to treat attacks of asthma.Its side effects are: Tremors unpleasant, dose-related.- Palpitations Restlessness- Ankle edema Nervousness- Throat irritation 