chemistry

Mometasone

Mometasone is a chemistry topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Mometasone rather than just read about it. In short: Mometasone and its derivate mometasone furoate are steroids (specifically, glucocorticoids), medications used to treat certain skin conditions, hay fever, and asthma. Specifically, they are used to prevent, rather than treat, asthma attacks.

Key takeaways

Mometasone belongs to chemistry; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Mometasone to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Mometasone from memory before moving on to harder problems.

Reference excerpt

Mometasone and its derivate mometasone furoate are steroids (specifically, glucocorticoids), medications used to treat certain skin conditions, hay fever, and asthma. Specifically, they are used to prevent, rather than treat, asthma attacks. They can be applied to the skin, inhaled, or used in the nose. Currently only mometasone furoate is used in medical products. Common side effects when used for asthma include headache, sore throat, and thrush. It is therefore recommended to rinse the mouth after use. Long-term use may increase the risk for glaucoma and cataracts. Common side effects when used in the nose include upper respiratory tract infections and nose bleeds. Common side effects when applied on the skin include acne, skin atrophy, and itchiness. It works by decreasing inflammation. Mometasone furoate was patented in 1981 and came into medical use in 1987. It is on the World Health Organization's List of Essential Medicines and is available as a generic medication. In 2023, it was the 272nd most commonly prescribed medication in the United States, with more than 800,000 prescriptions.

Medical uses Mometasone furoate is used in the treatment of inflammatory skin disorders such as eczema and psoriasis (topical form), allergic rhinitis such as hay fever (topical form), asthma (inhalation form) for patients unresponsive to less potent corticosteroids, and penile phimosis. Some low-quality evidence suggests the use of mometasone for symptomatic improvement in children with adenoid hypertrophy. In terms of steroid strength, it is more potent than hydrocortisone, and less potent than dexamethasone. Mometasone is used to alleviate inflammation and itchiness in skin conditions that respond to treatment with glucocorticoids such as psoriasis and atopic dermatitis. Nasal mometasone is used in people over two years of age to diminish the symptoms of hay fever (seasonal allergic rhinitis) and other allergies (perennial rhinitis), including nasal congestion, discharge, pruritus, sneezing, and treat nasal polyps. Mometasone furoate can be used with formoterol for the treatment of asthma, due to its anti-inflammatory properties. It is not useful for the common cold.

Contraindications

People should not use inhaled mometasone or mometasone nasal spray if they have glaucoma, cataracts, hypersensitivity, or are allergic to any ingredient in mometasone. Those who are using mometasone nasal or inhaled for a long period of time (e.g. more than three months) should get regular eye exams to check for glaucoma and cataracts and should take precautions to avoid infections such as taking a vitamin D supplement, staying away from those with an infection (chickenpox, measles, colds or flu, COVID-19), washing foods, hand washing and calling a family doctor at the first sign of a severe infection. People should not use mometasone topical (skin cream) if hypersensitive or allergic to any ingredient in the skin cream. Risks of mometasone furoate to the baby during pregnancy cannot be ruled out.

Side effects

The nasal spray form of mometasone may cause the following side effects:

headache Viral upper respiratory infections sore throat nose bleeds cough muscle and joint pain Serious side effects include: Thrush (fungal infection in the nose or throat), slow wound healing, eye problems such as glaucoma or cataracts, weakened immune system (immunodeficiency) which causes increased susceptibility to infections and adrenal insufficiency. The inhaled form of mometasone for asthma may cause the following side effects:

headache stuffy or runny nose dry throat swelling of nose, throat and sinuses flu-like symptoms painful menstrual periods Serious side effects may include allergic reactions (anaphylaxis), increased risk of osteoporosis, glaucoma and cataracts, thrush in the mouth or throat, growth retardation in children, bronchospasms, adrenal insufficiency and weakened immune system which causes increased susceptibility to infections. The topical (skin cream) version may cause:

burning and itching at the application site acne changes in skin color dryness at the application site skin sores The only serious side effect that is known with mometasone topical is adrenal insufficiency.

Pharmacology

Pharmacodynamics Mometasone furoate reduces inflammation by causing several effects:

Reversing the activation of inflammatory proteins Activating the secretion of anti-inflammatory proteins Stabilizing cell membranes Decreasing the influx of inflammatory cells In addition to the glucocorticoid properties of mometasone furoate, it is a very potent agonist of the progesterone receptor as well as a partial agonist of the mineralocorticoid receptor.

Mechanism of action

… excerpt ends here. Continue reading the full article.

Illustrations

Worked examples

Example 1 — a first encounter with Mometasone

Start with the simplest possible case. Write down what Mometasone claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In chemistry, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Mometasone before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Mometasone ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Mometasone

In research: Mometasone appears in chemistry research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Mometasone in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Mometasone is common in secondary-school and first-year university syllabi. It links to neighbouring topics 2-Furyl compounds, Anti-asthmatic agents, Combination asthma drugs, so understanding it makes those chapters shorter.
In everyday life: Look for Mometasone outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Mometasone in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Mometasone means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Mometasone out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Mometasone in simple terms?

Why does Mometasone matter?

Because it connects several chemistry ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Mometasone?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Mometasone.