science

Sonepiprazole

Sonepiprazole is a science 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 Sonepiprazole rather than just read about it. In short: Sonepiprazole (INNTooltip International Nonproprietary Name; developmental code names U-101387 and PNU-101387) is a highly selective dopamine D4 receptor antagonist of the phenylpiperazine family. The drug showed high affinity for the dopamine D4.2 receptor (Ki = 24 nM) and negligible affinity for other dopamine receptors (Ki = >1,000 nM).

Key takeaways

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

Reference excerpt

Sonepiprazole (INNTooltip International Nonproprietary Name; developmental code names U-101387 and PNU-101387) is a highly selective dopamine D4 receptor antagonist of the phenylpiperazine family. The drug showed high affinity for the dopamine D4.2 receptor (Ki = 24 nM) and negligible affinity for other dopamine receptors (Ki = >1,000 nM). In animals, unlike D2 receptor antagonists like haloperidol, sonepiprazole does not block the behavioral effects of amphetamine or apomorphine, does not alter spontaneous locomotor activity on its own, and lacks extrapyramidal and neuroendocrine effects. However, it does reverse the prepulse inhibition deficits induced by apomorphine, and has also been shown to enhance cortical activity and inhibit stress-induced cognitive impairment. Sonepiprazole was investigated as an antipsychotic for the treatment of schizophrenia in a placebo-controlled clinical trial, but in contrast to olanzapine, no benefits were found, and it was not researched further for this use. It was under development by Pharmacia Corporation for the treatment of schizophrenia, and reached phase 2 clinical trials for this indication, but development was discontinued in March 2001.

See also List of investigational antipsychotics Substituted phenylpiperazine Lu 35-138 PNU-142633 Terikalant

References

Illustrations

Worked examples

Example 1 — a first encounter with Sonepiprazole

Start with the simplest possible case. Write down what Sonepiprazole claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, 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 Sonepiprazole 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 Sonepiprazole 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 Sonepiprazole

In research: Sonepiprazole appears in science 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 Sonepiprazole 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: Sonepiprazole is common in secondary-school and first-year university syllabi. It links to neighbouring topics Abandoned drugs, D4 antagonists, Drugs not assigned an ATC code, so understanding it makes those chapters shorter.
In everyday life: Look for Sonepiprazole 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 Sonepiprazole in 20 minutes

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

Frequently asked questions

What is Sonepiprazole in simple terms?

Why does Sonepiprazole matter?

Because it connects several science 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 Sonepiprazole?

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 Sonepiprazole.