(فينتولين (ألبوتيرول

Ventolin is a selective β2-adrenergic receptor agonist. Its therapeutic doses interact with β2-adrenergic receptors in muscles of the bronchi. After inhalation of 10-20% of the administered dose reaches the lower respiratory tract. The medication starts to act 4-5 minutes after inhalation and does for 4-6 hours. Ventolin is used to relieve symptoms of asthma, to treat patients with chronic obstructive bronchitis.
Do not use the medication more frequently than recommended. Common initial dose for inhalation is 2.5 mg, which could be increased up to 5 mg later. The solution for inhalations must be protected from microbial contamination which could spread to the patient's mucous. Use proper aseptic techniques each time you open the bottle. Avoid any contact of the dropper tip of the bottle with any surface. Do not use the solution if it changes color or becomes cloudy.
Hypersensitivity to the medication or its components in history.
The most common side effects are: shakiness in the legs, arms, hands, or feet, trembling or shaking of the hands or feet. More rare side effects include fast, irregular, pounding, or racing heartbeat or pulse palpitations, chest pain, rapid heart rate, and tremor or nervousness. 
If you forgot to take your dose in time, please do it as soon as you remember. But do not take if it is too late or almost time for your next dose. Do not increase your recommended dose. Take your doses at about the same time each day to avoid missing a dose.
Transitory changes induced by β2-adrenergic receptor agonists such as tachicardia, tremor, headache are symptoms of overdose. Severe hypopotassemia appears as result of Ventolin overdose.
Store at room temperature away from moisture, sunlight, kids and pets in a tight container.