science

Germolene

Germolene 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 Germolene rather than just read about it. In short: Germolene is the brand name used on a range of antiseptic products produced by the Bayer company, who purchased the brand from SmithKline Beecham (later GlaxoSmithKline) in 1999. It is manufactured for Bayer UK by the Devon-based Wrafton Laboratories division of US over-the counter and supermarket own-label preparation producer Perrigo.

Key takeaways

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

Reference excerpt

Germolene is the brand name used on a range of antiseptic products produced by the Bayer company, who purchased the brand from SmithKline Beecham (later GlaxoSmithKline) in 1999. It is manufactured for Bayer UK by the Devon-based Wrafton Laboratories division of US over-the counter and supermarket own-label preparation producer Perrigo. Originally a thick antiseptic ointment with a distinctive pink colour and scented with oil of wintergreen, Germolene was also reformulated as a cream, with both an ointment (pink) and cream (white) form being sold. The brand name is used on a range of over-the-counter first aid preparations, most of which contain antiseptic. There is an associated range of products specifically for the treatment of haemorrhoids. The thick pink Germolene ointment was confirmed by Bayer as no longer being available to the UK public in July 2014. As of 2015, it is only available with a doctor's prescription. It remains available elsewhere in the world, and is still manufactured for the South African pharmacy market, where, as of 2026, it is still available over the counter in pharmacies. Germolene cream is available to the UK public in most chemists and supermarkets. Germolene was invented by cough mixture tycoon Sir William Henry Veno, who in 1925, fearing he had cancer of the lip, sold his Veno Drug Company to the Beechams Company.

Composition Germolene's active ingredients include phenol 1.2% (providing antiseptic, locally analgesic and antipruritic effects) and chlorhexidine digluconate 0.25%. The Germoloids line of Germolene products, intended for use on haemorrhoids, also includes zinc oxide, and the analgesic lidocaine hydrochloride.

Adverse effects Germolene cream contains the active ingredient chlorhexidine, which can rarely induce allergic reactions. Symptoms of a minor allergic reaction to Germolene cream include itching, redness (erythema), dermatitis, eczema, rash, hives (urticaria), skin irritation, and blisters on the skin. In more serious cases of hypersensitivity, symptoms of anaphylaxis may occur. Such symptoms include shortness of breath, swelling of the face, hives, severe rash, and shock. Germolene cream is contraindicated for patients with known hypersensitivity to chlorhexidine or any other components of the cream.

References

Worked examples

Example 1 — a first encounter with Germolene

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

In research: Germolene 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 Germolene 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: Germolene is common in secondary-school and first-year university syllabi. It links to neighbouring topics Antiseptics, so understanding it makes those chapters shorter.
In everyday life: Look for Germolene 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 Germolene in 20 minutes

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

Frequently asked questions

What is Germolene in simple terms?

Why does Germolene 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 Germolene?

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 Germolene.