science

Glymidine sodium

Glymidine sodium 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 Glymidine sodium rather than just read about it. In short: Glymidine sodium (INN, also known as glycodiazine; trade name Gondafon) is a sulfonamide antidiabetic drug. It is an oral antidiabetic medication that was used for the management of type 2 diabetes mellitus.

Key takeaways

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

Reference excerpt

Glymidine sodium (INN, also known as glycodiazine; trade name Gondafon) is a sulfonamide antidiabetic drug. It is an oral antidiabetic medication that was used for the management of type 2 diabetes mellitus. It belongs to the sulfonylureas class of drugs, although it is structurally a sulfonamide, and acts primarily by stimulating the pancreas to release more insulin. First reported in 1964, it was introduced into clinical practice in Europe in the mid to late 1960s. While historically significant, glymidine sodium is now primarily available for research purposes and is no longer in widespread clinical use, having been largely superseded by newer diabetes medications.

Medical uses Glymidine sodium was indicated for the treatment of non-insulin-dependent diabetes mellitus (type 2 diabetes). It was used as an adjunct to diet and exercise to lower blood glucose levels. The typical dosage was 0.5 grams taken twice daily, with a total daily dose ranging from 0.5 to 1.5 grams, administered orally.

Adverse effects The most significant and potentially life-threatening adverse effect of glymidine sodium is hypoglycemia (low blood sugar). Other reported adverse effects include weakness, dizziness, and fatigue, as well as skin rashes and itching (pruritus). Epigastric discomfort and other gastrointestinal disturbances have also been described, along with dry mouth, joint pain (arthralgia), and backache.

Contraindications The use of glymidine sodium is contraindicated in individuals with insulin-dependent diabetes mellitus (type 1 diabetes), diabetic ketoacidosis, severe renal or hepatic failure, or known hypersensitivity to sulfonamides. Its use is also not recommended in children, pregnant women, or infants.

Pharmacology

Pharmacokinetics Glymidine sodium is rapidly and almost completely absorbed from the gastrointestinal tract following oral administration. It has a high bioavailability and is about 90% bound to plasma proteins. The elimination half-life of the drug is approximately 3.8 to 4 hours.

Mechanism of action Similar to other sulfonylureas, glymidine sodium lowers blood glucose by stimulating the release of insulin from the beta cells of the pancreas. This is achieved by binding to and blocking the ATP-sensitive potassium channels on the surface of pancreatic beta cells. The closure of these channels leads to depolarization of the cell membrane, which in turn opens voltage-gated calcium channels. The resulting influx of calcium into the cells triggers the secretion of insulin. Additionally, glymidine sodium has been reported to inhibit hepatic lipolysis, which is the breakdown of fats in the liver.

Chemistry Glymidine sodium is the sodium salt of glymidine. Its IUPAC name is N-[5-(2-methoxyethoxy)pyrimidin-2-yl]benzenesulfonamide. The chemical formula for the sodium salt is C13H14N3NaO4S. The synthesis of glymidine was first reported by Gutsche and Kohlmann in 1964. The synthesis is also described in U.S. Patent 3,275,635.

History Glymidine sodium was first reported in 1964 and was introduced for clinical use in Europe in the mid to late 1960s. It was developed and originally marketed by Bayer and Schering. As an early oral antidiabetic medication, it offered an alternative to insulin for patients with type 2 diabetes.

Society and culture Glymidine sodium was marketed under several brand names, including Gondafon, Glycanol, Glyconormal, Lycanol, and Redul. It is now primarily sold by chemical suppliers for research purposes and is not widely available as a clinical medication. Its use has declined with the development of newer generations of sulfonylureas and other classes of antidiabetic drugs that offer different mechanisms of action and improved safety profiles.

References

Illustrations

Worked examples

Example 1 — a first encounter with Glymidine sodium

Start with the simplest possible case. Write down what Glymidine sodium 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 Glymidine sodium 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 Glymidine sodium 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 Glymidine sodium

In research: Glymidine sodium 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 Glymidine sodium 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: Glymidine sodium is common in secondary-school and first-year university syllabi. It links to neighbouring topics Abandoned drugs, Ethers, Gastrointestinal system drug stubs, so understanding it makes those chapters shorter.
In everyday life: Look for Glymidine sodium 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 Glymidine sodium in 20 minutes

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

Frequently asked questions

What is Glymidine sodium in simple terms?

Why does Glymidine sodium 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 Glymidine sodium?

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 Glymidine sodium.