Question 1

How quickly will I feel relief after using Fostair?

Accepted Answer

Formoterol starts working within 1‑3 minutes, so you should feel your airways open rapidly. The anti‑inflammatory effect takes longer – days to weeks – but the bronchodilation provides immediate symptom relief.

Question 2

How long does a single dose of Fostair last?

Accepted Answer

The bronchodilator effect of formoterol lasts about 12 hours, which is why twice‑daily dosing is standard. The anti‑inflammatory effect also persists for over 12 hours, but regular dosing maintains continuous control.

Question 3

When does Fostair reach its peak effect?

Accepted Answer

Formoterol’s peak bronchodilation occurs 1‑2 hours after inhalation. Beclometasone’s anti‑inflammatory action peaks after 2‑4 weeks of regular use.

Question 4

How long does it take for Fostair to be completely out of my system?

Accepted Answer

Formoterol’s half‑life is 10‑14 hours, so it takes about 2‑3 days to be fully eliminated. Beclometasone metabolites are cleared within 24‑48 hours.

Question 5

Does Fostair work immediately for an asthma attack?

Accepted Answer

If you are on the MART regimen, you can use Fostair as a reliever – formoterol acts within minutes. However, for a severe attack, always follow your action plan and use a dedicated blue reliever if prescribed. Seek emergency help if symptoms do not improve.