sorry for confusion...
The side effects of salbutamol generally result from the drugs action on muscles such as cramps or tremors. Other side effects come from the drugs action on beta 1 adrenoceptors in cardiac muscle (500 time less binding than beta 2) generally causing vasodillation with resulting effect on blood pressure and the heart.
More common side effects include: Aggression, agitation, cough, diarrhoea, dizziness, excitement, general bodily discomfort, headache, heartburn, increased appetite, increased blood pressure, indigestion, irritability, laboured breathing, light-headedness, muscle cramps, nausea, nervousness, nightmares, nosebleed, over activity, palpitations, rapid heartbeat, rash, ringing in the ears, shakiness, sleeplessness, stomach ache, stuffy nose, throat irritation, tooth discoloration, tremors, vomiting, wheezing, worsening bronchospasm.
Less common side effects include: Chest pain or discomfort, difficulty urinating, drowsiness, dry mouth and throat, flushing, high blood pressure, muscle spasm, restlessness, sweating, unusual taste, vertigo, weakness.
Rare side effects following the use of inhaled salbutamol include: Hoarseness, skin rash or hives, hypokalemia, myocardial insufficiency, heart failure, angina-pectoris, hypertension, severe cardiovascular disease, diabetes-mellitus, maternal-thyrotoxicosis |