Brand-name prescription

Perforomist

Rx Authorized generic Available

Perforomist

formoterol

Same medicine as Perforomist, sold without the brand name by Mylan Pharmaceuticals.

From Mylan Pharmaceuticals, the company behind Perforomist.

NDC to ask for

20 mcg/2mLsolution
- 0378-1631-9111-digit: 00378-1631-912 mL per vial
- 0378-1631-9311-digit: 00378-1631-932 mL per vial

Source: FDA · updated September 23, 2026

What to say at the pharmacy

“Can you fill my Perforomist prescription with the authorized generic from Mylan Pharmaceuticals? The NDC is 0378-1631-91. Could you check the price and whether my plan covers it?”

Good to know

It may look different from Perforomist (color, shape, or markings). That’s normal for an authorized generic.
Price and coverage depend on your pharmacy and plan. Ask them to price both the brand and this NDC.
If your pharmacy doesn’t stock it, they can often order it within a day or two.
Don’t stop or change a medicine without talking to your pharmacist or prescriber.