science

Pheniprazine

Pheniprazine 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 Pheniprazine rather than just read about it. In short: Pheniprazine, formerly sold under the brand names Catron and Cavodil, is an irreversible and non-selective monoamine oxidase inhibitor (MAOI) of the hydrazine group that was used as an antidepressant to treat depression in the 1960s. It was also used in the treatment of angina pectoris and schizophrenia.

Key takeaways

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

Reference excerpt

Pheniprazine, formerly sold under the brand names Catron and Cavodil, is an irreversible and non-selective monoamine oxidase inhibitor (MAOI) of the hydrazine group that was used as an antidepressant to treat depression in the 1960s. It was also used in the treatment of angina pectoris and schizophrenia. Pheniprazine has been largely discontinued due to toxicity concerns such as jaundice, amblyopia, and optic neuritis.

Pharmacology Pheniprazine is a monoamine oxidase inhibitor (MAOI). Amphetamine has been detected as an active metabolite of pheniprazine in animals. Pheniprazine produces amphetamine- and psychostimulant-like effects at high doses in animals. The same is true of certain other MAOIs, including iproniazid, phenelzine, tranylcypromine, and pargyline, but not nialamide.

Chemistry Pheniprazine, also known as α-methylphenethylhydrazine, is a phenethylamine, amphetamine, and hydrazine derivative. It is a close analogue of phenelzine (phenethylhydrazine) and amphetamine (α-methylphenethylamine) and can also be referred to by synonyms including amphetamine hydrazide, α-methylphenelzine, and N-aminoamphetamine. Metfendrazine (α,N-dimethylphenethylhydrazine; N-methylpheniprazine) is the corresponding methamphetamine (N-methylamphetamine) analogue.

Society and culture

Names Pheniprazine is the generic name of the drug and its INNTooltip International Nonproprietary Name and BANTooltip British Approved Name. It is also known by the former developmental code name JB-516.

References

Illustrations

Worked examples

Example 1 — a first encounter with Pheniprazine

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

In research: Pheniprazine 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 Pheniprazine 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: Pheniprazine is common in secondary-school and first-year university syllabi. It links to neighbouring topics Drugs not assigned an ATC code, Hepatotoxins, Monoamine oxidase inhibitors, so understanding it makes those chapters shorter.
In everyday life: Look for Pheniprazine 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 Pheniprazine in 20 minutes

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

Frequently asked questions

What is Pheniprazine in simple terms?

Why does Pheniprazine 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 Pheniprazine?

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 Pheniprazine.