chemistry

Phenatine

Phenatine 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 Phenatine rather than just read about it. In short: Phenatine, or phenatin, also known as N-nicotinoylamphetamine and sold under the brand name Fenatine, is a psychostimulant of the amphetamine family which was developed and used in the Soviet Union. It was used in the treatment of depression, narcolepsy, post-encephalitis sequelae, alcoholic psychoses, asthenia, and other conditions.

Key takeaways

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

Reference excerpt

Phenatine, or phenatin, also known as N-nicotinoylamphetamine and sold under the brand name Fenatine, is a psychostimulant of the amphetamine family which was developed and used in the Soviet Union. It was used in the treatment of depression, narcolepsy, post-encephalitis sequelae, alcoholic psychoses, asthenia, and other conditions.

Chemistry Phenatine is a condensation product of amphetamine (phenamine) and nicotinic acid (niacin; vitamin B3). It was first described in the scientific literature by 1955.

Pharmacology Phenatine is described as having effects analogous to those of amphetamine. Phenatine was also said to enhance physical and mental performance. However, the drug was described as being a milder stimulant than amphetamine whilst supposedly being superior to amphetamine and other stimulants in various respects. It was claimed to be much less toxic than amphetamine, to have hypotensive rather than hypertensive effects (and hence to not be contraindicated in people with hypertension), and to have reduced rebound effects and addictive potential.

Analogues An analogue is methylphenatine. Another analogue is pyridoxiphen (pyridoxiphene; pyridoxylamphetamine), the condensation product of amphetamine and pyridoxine (vitamin B6). Other relatives may include thiophenatine, propylphenamine, and phenylphenamine. Further analogues of phenatine and pyridoxphen include gamofen (the condensation product of amphetamine and γ-aminobutyric acid (GABA)), alafen (the condensation product of amphetamine and β-alanine), and pabofen (p-aminobenzoylamphetamine; linkage of amphetamine and p-aminobenzoic acid (PABA), an intermediate in the biosynthesis of folic acid (vitamin B9)), all of which show distinct pharmacological activity.

See also Benzphetamine Clobenzorex Lisdexamfetamine N-t-BOC-MDMA List of Russian drugs

References

External links Phenatine (Monograph ID: M8600) - The Merck Index Online

Illustrations

Worked examples

Example 1 — a first encounter with Phenatine

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

In research: Phenatine 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 Phenatine 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: Phenatine is common in secondary-school and first-year university syllabi. It links to neighbouring topics Amides, Antihypertensive agents, Drugs in the Soviet Union, so understanding it makes those chapters shorter.
In everyday life: Look for Phenatine 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 Phenatine in 20 minutes

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

Frequently asked questions

What is Phenatine in simple terms?

Why does Phenatine 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 Phenatine?

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 Phenatine.