LEVOSTAR Inhaler

Levosalbutamol sulphate INN equivalent to 50mcg/puff or dose: metered dose inhalation (MDI).

200 doses unit: 200.75 MRP

Indications

Levosalbutamol Nebuliser Solution or Inhaler  is indicated for the treatment or prevention of bronchospasm in adults, adolescents, and children with reversible obstructive airway disease.

Pharmacology

Levosalbutamol Nebuliser Solution is a sterile, clear, colorless, preservative-free solution of the hydrochloride salt of Levosalbutamol, the (R)-enantiomer of the drug substance racemic salbutamol. Levosalbutamol Hydrochloride is a relatively selective &beta 2 adrenergic receptor agonist.

Activation of &beta 2 adrenergic receptors on airway smooth muscle leads to the activation of adenylcyclase and to an increase in the intracellular concentration of cyclic AMP. This increase in cAMP leads to the activation of protein kinase A, which inhibits the phosphorylation of myosin and lowers intracellular ionic calcium concentrations, resulting in relaxation. Levosalbutamol relaxes the smooth muscles of all airways, from the trachea to the terminal bronchioles. Levosalbutamol acts as a functional antagonist to relax the airway irrespective of the spasmogen involved, thus protecting against all bronchoconstrictor.

Inhaler

You should take your Levosalbutamol Inhaler as needed for an asthma attack at any time of day, with or without food, by taking 1-2 puffs up to 4 times daily and no more than 8 puffs in 24 hours. If you are using your Levosalbutamol Inhaler more than 3-4 times a week this may indicate that your asthma is not well controlled and you may need to review your medication. You can also use your Levosalbutamol Inhaler to prevent allergy or exercise induced asthma by taking 2 puffs 15 minutes before exercise or exposure to a known allergen.

Side Effects

Potentially serious hypokalaemia may result from beta 2 – agonist therapy. This effect may be potentiated by hypoxia. Other side effects such as palpitation, fine tremors of the skeletal muscle (particularly the hand) and muscle cramps may occur. In few cases nervousness, headache, dizziness, fatigue and sleeplessness have also been reported.

Overdose Effects

The expected symptoms with over dosage are those of excessive beta-adrenergic receptor stimulation and/or occurrence or exaggeration of any of the symptoms listed under side effects. Treatment consists of discontinuation of Levosalbutamol Nebuliser Solution or Inhaler together with appropriate symptomatic therapy. The judicious use of a cardioselective beta-receptor blocker may be considered.