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Description
What is Sereflo?
Sereflo is a prescription medication used to prevent breathing problems such as asthma. This is a daily asthma preventer that can help to stop feelings of breathlessness and wheezing and is not a reliever inhaler.
How does it work?
Sereflo is a combination inhaler that contains two medicines: salmeterol and fluticasone propionate. Salmeterol is a long-acting bronchodilator that can help the airways stay open to increase the amount of air travelling through. Fluticasone propionate is a corticosteroid which can reduce the swelling and irritation in the lungs.
Is Sereflo suitable for me?
Sereflo is indicated for use in adults aged 18 years of age and older only. You should consult with your doctor if you have any underlying medical conditions or if you are on any medications before using this inhaler.
Side Effects
All medications can cause potential side effects, below we have listed some potential side effects, however, these do not always occur.
- Increased number of colds
- Headaches
- Thrush
- Aching, swollen joints and muscle pain
- Muscle cramps
Disclaimer: This website does not constitute as medical advice, you should also consult with a doctor before taking medication. If you experience any major reactions to any medication you are taking, you must seek immediate medical attention.
Delivery
Next Day Delivery Guarantee
All orders placed before 14:00 on weekdays will be delivered the next working day. For the majority of the UK, medication will be dispatched by Royal Mail, Monday to Friday, if ordered before 14:00. Dispatches are sent using Royal Mail's Next-Day Tracked 24-Hour service. We will email you tracking information directly and you should receive your order the day after dispatch.
Our Discreet Packaging Promise
We know that many of our customers turn to us when they need personal medication, preferring to use our online service rather than shopping for the product face to face. That is why our delivery is always discreetly packaged in plain brown boxes or enveloped. You will not have to worry about any content descriptions, and the package will be for your eyes only!
Dosage
Commonly Used Dosage Guidelines for Sereflo.
- Sereflo 25 microgram/125 microgram - 2 puffs twice a day
- Sereflo 25 microgram /250 microgram - 2 puffs twice a day
Disclaimer: This website does not provide medical advice. No information listed on this website is intended to be a substitute for professional medical advice, diagnosis or treatment. Always seek the advice of your physician or other qualified health care provider with any questions you may have regarding a medical condition or treatment before undergoing a new health care regimen, and never disregard professional medical advice or delay in seeking it because of something you have read on this website.
Sereflo Patient Leaflet
Product reviews

How it works
This is a quick process and should only take 1 - 2 minutes. All of your answers are confidential, and just like a GP consultation, you will know what treatment is most suitable for you instantly upon completion.
Once you have completed the quick online form, select the treatment option most suitable to you and checkout securely.
We will dispatch your order using our express next-day courier service from our pharmacy partners across the UK. You will receive your treatment discreetly to the comfort of your home/ selected address.
What type of inhaler is Sereflo?
Sereflo is a daily preventer and combination inhaler as it should be used every day to prevent and treat symptoms of asthma.
Can you use Sereflo if you are pregnant or breastfeeding?
If you are pregnant or breastfeeding, think you may be pregnant or are planning to have a baby, ask your doctor or pharmacist for advice before taking this medicine.
When should you not take Sereflo?
Talk to your doctor before using Sereflo if you have:
- Heart disease, including an irregular or fast heart beat
- Overactive thyroid gland
- High blood pressure
- Diabetes mellitus (Sereflo may increase your blood sugar)
- Low potassium in your blood
- Tuberculosis (TB) now, or in the past, or other lung infections
What happens if I stop using Sereflo?
It is very important that you take your Sereflo every day as directed. Keep taking it until your doctor tells you to stop. Do not stop or suddenly reduce your dose of Sereflo. This could make your breathing worse.
In addition, if you suddenly stop taking Sereflo or reduce your dose of Sereflo this may (very rarely) cause you to have problems with your adrenal gland (adrenal insufficiency) which sometimes causes side effects. These side effects may include any of the following:
- Stomach pain
- Tiredness and loss of appetite, feeling sick
- Sickness and diarrhoea
- Weight loss
- Headache or drowsiness
- Low levels of sugar in your blood
- Low blood pressure and seizures (fits)

Why Welzo

Welzo prescription medication is shipped out for next-day delivery in discreet packaging.

Welzo only works with UK-based pharmacies. All our medication is authentic and issued by GPhC-registered pharmacies and prescribers.

Our team of clinicians and health experts can support you along every step of your treatment journey.
