chemistry

Sulfoaildenafil

Sulfoaildenafil 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 Sulfoaildenafil rather than just read about it. In short: Sulfoaildenafil (thioaildenafil) is a synthetic drug that is a structural analog of sildenafil (Viagra). It was first reported in 2005, and it is not approved by any health regulation agency.

Key takeaways

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

Reference excerpt

Sulfoaildenafil (thioaildenafil) is a synthetic drug that is a structural analog of sildenafil (Viagra). It was first reported in 2005, and it is not approved by any health regulation agency. Like sildenafil, sulfoaildenafil is a phosphodiesterase type 5 inhibitor. Sulfoaildenafil has been found as an adulterant in a variety of supplements which are sold as "natural" or "herbal" sexual enhancement products. A range of designer analogues of USA FDA-approved inhibitors of type-5 cGMP-specific phosphodiesterase (PDE5), such as sildenafil and vardenafil, have been detected in recent years as adulterants in over-the-counter herbal aphrodisiac products and dietary supplements, in an apparent attempt to circumvent both the legal restrictions on sale of erectile dysfunction drugs, which are prescription-only medicines in most Western countries, and the patent protection which prevents sale of these drugs by competitors except under license to their inventors. These compounds have been demonstrated to display PDE5 inhibitory activity in vitro and presumably have similar effects when consumed, but have undergone no formal testing in either humans or animals, and as such represent a significant health risk to consumers of these products due to their unknown safety profile. Some attempts have been made to ban these drugs as unlicensed medicines, but progress has been slow so far, as even in those jurisdictions which have laws targeting designer drugs, the laws are drafted to ban analogues of illegal drugs of abuse, rather than analogues of prescription medicines. However, at least one court case has resulted in a product being taken off the market. In December 2010, the United States Food and Drug Administration (FDA) issued a warning to consumers about such products stating, "The FDA has found many products marketed as dietary supplements for sexual enhancement during the past several years that can be harmful because they contain active ingredients in FDA-approved drugs or variations of these ingredients."

See also Aildenafil Acetildenafil Nitrosoprodenafil

References

Illustrations

Worked examples

Example 1 — a first encounter with Sulfoaildenafil

Start with the simplest possible case. Write down what Sulfoaildenafil 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 Sulfoaildenafil 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 Sulfoaildenafil 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 Sulfoaildenafil

In research: Sulfoaildenafil 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 Sulfoaildenafil 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: Sulfoaildenafil is common in secondary-school and first-year university syllabi. It links to neighbouring topics Designer drugs, PDE5 inhibitors, Phenol ethers, so understanding it makes those chapters shorter.
In everyday life: Look for Sulfoaildenafil 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 Sulfoaildenafil in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Sulfoaildenafil 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 Sulfoaildenafil out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Sulfoaildenafil in simple terms?

Sulfoaildenafil (thioaildenafil) is a synthetic drug that is a structural analog of sildenafil (Viagra). It was first reported in 2005, and it is not approved by any health regulation agency.

Why does Sulfoaildenafil 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 Sulfoaildenafil?

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 Sulfoaildenafil.