Phaclofen, or phosphonobaclofen, is a selective antagonist for the GABAB receptor. It was the first selective GABAB antagonist discovered, but its utility was limited by the fact that it does not cross the blood brain barrier.
References
chemistry
Phaclofen
Phaclofen 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 Phaclofen rather than just read about it. In short: Phaclofen, or phosphonobaclofen, is a selective antagonist for the GABAB receptor. It was the first selective GABAB antagonist discovered, but its utility was limited by the fact that it does not cross the blood brain barrier.
Key takeaways
- Phaclofen belongs to chemistry; place it in that map before memorising details.
- Learn the definition first, then one example that makes the definition concrete.
- Connect Phaclofen to a quantity you can measure, compute or draw — that is where exam questions come from.
- Reproduce the core statement of Phaclofen from memory before moving on to harder problems.
Reference excerpt
Illustrations
Worked examples
Example 1 — a first encounter with Phaclofen
Start with the simplest possible case. Write down what Phaclofen 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 Phaclofen 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 Phaclofen 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 Phaclofen
- In research
- Phaclofen 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 Phaclofen 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
- Phaclofen is common in secondary-school and first-year university syllabi. It links to neighbouring topics 4-Chlorophenyl compounds, GABAB receptor antagonists, Nervous system drug stubs, so understanding it makes those chapters shorter.
- In everyday life
- Look for Phaclofen 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 Phaclofen in 20 minutes
- Read the reference excerpt below once, without taking notes.
- Close the page and write down what Phaclofen 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 Phaclofen out loud to somebody else — or to Teacher Smith in the lgStudy chat.
Frequently asked questions
What is Phaclofen in simple terms?
Phaclofen, or phosphonobaclofen, is a selective antagonist for the GABAB receptor. It was the first selective GABAB antagonist discovered, but its utility was limited by the fact that it does not cross the blood brain barrier.
Why does Phaclofen 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 Phaclofen?
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 Phaclofen.
Tags
- 4-Chlorophenyl compounds
- GABAB receptor antagonists
- Nervous system drug stubs
- Phosphonic acids