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Prescription requiredRESPIRATORY

Formost 400 Inhaler

Formoterol (6mcg) + Mometasone (400mcg)

Formost 400 Inhaler is used for chronic obstructive pulmonary disease (COPD).

Medically reviewed by Dr. Balaji Krishnan, MBBS · Updated September 2026

₹683
Licensed pharmacyPharmacist-verified orderDelivered across India

Key details

Salt: Formoterol (6mcg) + Mometasone (400mcg)
Available variants: inhaler NA 1`S
Best price: ₹683
Prescription: Required
Manufacturer: G

Ordering notes

Standard delivery across India. No same-day delivery nationally.
Chennai express delivery is possible and chargeable. Learn more
Returns & refunds: orders can be cancelled before dispatch; after dispatch, returns depend on the item category. Read the full policy

Composition of Formost 400 Inhaler

Formost 400 Inhaler contains Formoterol (6mcg) + Mometasone (400mcg). It belongs to the Inhaled bronchodilator / corticosteroid and Corticosteroid / calcineurin inhibitor class of medicines.

Uses of Formost 400 Inhaler

Chronic obstructive pulmonary disease (COPD)

Key benefits

  • In Chronic obstructive pulmonary disease (COPD) COPD (chronic obstructive pulmonary disease) is a group of lung diseases that cause breathing difficulties. COPD is caused by swelling of the airways that carry air in and out of the lungs. Formost 400 Inhaler relaxes the muscles of these airways and widens it. This makes you breathe easy and gives relief from symptoms such as tightness in your chest
  • shortness of breath
  • wheezing and coughing. Avoid smoking and minimise your exposure to pollution
  • dust and fumes. Along with that
  • a little exercise each day can help you stay strong. Talk to your doctor about how much exercise is good for you.

How Formost 400 Inhaler works

Formost 400 Inhaler is a combination of two medicines: Formoterol and Mometasone. Formoterol is a long-acting bronchodilator which works by relaxing the muscles in the airways and widens the airways. Mometasone is a steroid. It works by stopping the release of certain chemical messengers that cause inflammation (swelling) of the airways. Together, they make breathing easier.

How to take Formost 400 Inhaler

Check the label for directions before use. Shake the inhaler. While you are breathing in from mouth, press down on the inhaler one time to release the medication and hold your breath for 10 seconds. Repeat until you have inhaled the number of puffs as suggested by the doctor.Afterwards, rinse your mouth thoroughly with water and spit it out.

Take it exactly as your doctor prescribed. Do not change the dose or stop early on your own.

Missed dose and overdose

If you miss a dose

If you miss a dose of Formost 400 Inhaler, use it as soon as possible. However, if it is almost time for your next dose, skip the missed dose and go back to your regular schedule. Do not double the dose.

If you take too much

An overdose of this medicine can cause a racing heart, marked tremor, headache and a fall in blood potassium. It can suppress the body's own steroid production when it is used for a long time over large areas, especially in children. Do not wait for symptoms to appear — go to the nearest emergency department and take the pack or strip with you.

Side effects of Formost 400 Inhaler

Most side effects of Formost are mild and settle as the body adjusts. Reported side effects include:

  • Most side effects do not require any medical attention and disappear as your body adjusts to the medicine. Consult your doctor if they persist or if you’re worried about them

Stop the medicine and seek help immediately for a rash, swelling of the face or lips, wheezing or difficulty breathing. Tell your doctor about any side effect that persists or worries you.

Safety advice for Formost 400 Inhaler

PregnancyPregnancy CONSULT YOUR DOCTOR
BreastfeedingBreast feeding CAUTION
AlcoholAlcohol CONSULT YOUR DOCTOR
DrivingDriving UNSAFE
KidneyKidney
LiverLiver
Habit formingNo

Warnings and precautions

Know which of your inhalers is the reliever and which is the preventer. A preventer must be used every day even when you feel well; a reliever is for symptoms. Seek emergency care if your reliever is not working, if you cannot speak a full sentence, or if you are using the reliever far more often than usual. Rinse your mouth with water and spit it out after every steroid inhaler dose to prevent thrush and hoarseness. Ask your doctor or pharmacist to watch your technique — poor technique is the commonest reason an inhaler seems not to work. Use a spacer if one has been advised, particularly for children. Use it only on the area and for the number of days your doctor specified. Potent steroid creams thin the skin permanently when used for too long. Never use a potent steroid cream on the face, the groin or the underarms unless your doctor has specifically told you to — the skin there is thin and absorbs much more. Do not use it on an infection. A steroid on ringworm, impetigo or herpes makes the infection worse while hiding it. Do not use leftover cream on a new rash, and never pass it to someone else. Stop and see your doctor if the area becomes more painful, weepy or crusted.

Do not take Formost if

Not for anyone with a known allergy to this medicine or to any ingredient in the pack. Not for anyone with a known allergy to the propellant used in the inhaler. Not for untreated bacterial, fungal or viral skin infections. Not for use in or around the eyes.

Interactions with other medicines

Beta blockers, including eye drops for glaucoma, can tighten the airways and reduce the effect of your reliever. No significant interactions are expected from preparations used on the skin.

How to store Formost 400 Inhaler

Store below 30°C, away from direct sunlight and heat. Do not puncture or burn the canister, even when empty. Keep out of the reach of children.

Expert advice for Formost 400 Inhaler

Formost 400 Inhaler is a combination of two medicines that opens the airways and makes it easier to breathe. This medicine is for inhalation only. The tablet should not be swallowed. It should be taken at the same time each day. It does not work right away and should not be used to relieve sudden breathing problems. Use your rescue inhaler to control sudden difficulty in breathing. Gargle with warm water after each inhalation to avoid any fungal infections in your mouth and throat. Take the first dose of this medicine under medical supervision as it may cause wheezing or tightening of the airways (bronchospasm) immediately after using. Your doctor may regularly monitor your blood potassium level as low oxygen level in the blood (hypoxia) and medicines such as Formost 400 Inhaler can lower blood potassium level. Only miniscule amounts of Formost 400 Inhaler may get absorbed into the bloodstream after inhalation. Hence, serious side effects are unlikely.

Manufacturer and class

Manufacturer:
G
Therapeutic class:
RESPIRATORY
Drug class:
Inhaled bronchodilator / corticosteroid and Corticosteroid / calcineurin inhibitor

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Formost 400 Inhaler FAQs

What is Formost 400 Inhaler used for?
Formost 400 Inhaler is commonly used for Chronic obstructive pulmonary disease (COPD). Always follow your doctor's advice, this information is for educational purposes and not a substitute for professional medical guidance.
What is the salt in Formost 400 Inhaler?
Formost 400 Inhaler contains Formoterol (6mcg) + Mometasone (400mcg). If you are allergic to any of these active ingredients or excipients, do not take this medicine and speak to your doctor first.
How should I take Formost 400 Inhaler?
Check the label for directions before use. Take it exactly as prescribed; do not change the dose or stop early without talking to your doctor.
How does Formost 400 Inhaler work?
Formost 400 Inhaler is a combination of two medicines: Formoterol and Mometasone.
Is Formost 400 Inhaler a prescription medicine?
Yes. Formost 400 Inhaler is a prescription-only (Rx) medicine. Upload a valid prescription from a registered medical practitioner during checkout. We cannot dispense it without a valid Rx.
What are the common side effects of Formost 400 Inhaler?
The side effects reported most often with Formost are Most side effects do not require any medical attention and disappear as your body adjusts to the medicine. Consult your doctor if they persist or if you’re worried about them. Most are mild and settle as the body adjusts; tell your doctor if any of them persist or worry you, and stop the medicine and seek help at once for a rash, swelling of the face or lips, or difficulty breathing.
Can Formost 400 Inhaler be taken during pregnancy?
Pregnancy CONSULT YOUR DOCTOR Always tell your doctor if you are pregnant, planning a pregnancy or breastfeeding before starting Formost.
Can I drink alcohol while taking Formost 400 Inhaler?
Alcohol CONSULT YOUR DOCTOR
What if I miss a dose of Formost 400 Inhaler?
If you miss a dose of Formost 400 Inhaler, use it as soon as possible.
Is Formost 400 Inhaler habit forming?
No. Formost 400 Inhaler is not known to be habit forming when taken as prescribed.
How much does Formost 400 Inhaler cost on PingMeDoc Pharmacy?
Formost 400 Inhaler starts at ₹683 on PingMeDoc Pharmacy. Available in inhaler NA 1`S. Final price is confirmed at checkout and may vary by variant and location.
Who manufactures Formost 400 Inhaler?
Formost 400 Inhaler is manufactured by G. PingMeDoc Pharmacy sources medicines only from licensed manufacturers and distributors.
How is Formost 400 Inhaler delivered?
Formost 400 Inhaler is delivered across India via our licensed pharmacy partners. Standard delivery timelines are confirmed at checkout. Chennai customers can opt for chargeable same-city express delivery.

Formost 400 Inhaler, Quick facts

Salt
Formoterol (6mcg) + Mometasone (400mcg)
Form
inhaler
Best price
₹683
Prescription
Required (Rx)
Schedule
Schedule H
Manufacturer
G
Therapeutic class
RESPIRATORY
Drug class
Inhaled bronchodilator / corticosteroid and Corticosteroid / calcineurin inhibitor
Habit forming
No
Variants
inhaler NA 1`S
Delivery
Standard across India

References

The information on Formost 400 Inhaler is compiled from the manufacturer's prescribing information and the sources below, and is reviewed by a registered medical practitioner. It does not replace advice from your own doctor.

  1. PingMeDoc clinical monograph library — compiled from Indian package inserts, the Indian Pharmacopoeia
  2. CDSCO schedules and standard pharmacology references. Reviewed for patient readability. This is general information, not a substitute for your doctor's advice.
  3. Central Drugs Standard Control Organisation (CDSCO), Ministry of Health & Family Welfare, Government of India, approved drug and schedule listings.
  4. National List of Essential Medicines (NLEM) 2022, Government of India.
  5. Manufacturer's package insert / prescribing information for Formost 400 Inhaler.
  6. World Health Organization, ATC/DDD classification and Model Formulary for the active ingredient.

Next steps

Safety disclaimer

Product information is for general awareness and does not replace professional medical advice. Always follow a clinician's guidance and upload a valid prescription when required.