Difflam, Strepsils Intensive, Cepacol and more — we compare medicated and soothing throat lozenges by ingredient type to help you find the right one.

General information only — check with your pharmacist or GP before starting a new medicine. Always read the label and follow the directions for use.
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A sore throat is one of those symptoms that sends people straight to the lozenge aisle, usually when they already feel flat and do not want to overthink it. The trouble is that throat lozenges are sold as if they all do the same job, when in practice some are mainly soothing while others contain ingredients that can make a real dent in pain and inflammation. Lozenges are one of the most popular forms of sore throat medicine in Australia, but the right pick depends entirely on what is causing your discomfort.
We compared the main Australian options by active ingredient, expected level of relief, taste, cost per lozenge, and how strong the evidence is behind each type.
Not all throat lozenges are created equal. They fall into four broad categories based on their mechanism of action, and understanding this helps you pick the right one for your symptoms.
These contain ingredients like amylmetacresol and dichlorobenzyl alcohol (as found in Strepsils Original) that kill or inhibit the growth of bacteria and viruses in the throat. They are best suited for the early stages of a sore throat when you want to reduce the microbial load. However, since most sore throats are viral, the direct germ-killing effect may be modest — the real benefit often comes from the soothing action of sucking on the lozenge itself.
These are the heavy hitters. Lozenges containing benzydamine (Difflam) or flurbiprofen (Strepsils Intensive) work by reducing inflammation directly at the throat tissue. They provide genuine, measurable pain relief backed by clinical evidence. If your throat is noticeably swollen and painful, these are typically the most effective OTC option.
Products like Cepacol contain local anaesthetic agents or numbing compounds that temporarily block pain signals from the throat. The relief is fast but relatively short-lived — typically 20 to 30 minutes per lozenge. They are useful when you need quick relief for a specific task like eating or giving a presentation.
Products like Soothers and Butter-Menthol rely on ingredients such as menthol, eucalyptus oil, and honey to soothe irritation through lubrication and a cooling sensation. They do not contain TGA-scheduled active ingredients, so they are more like therapeutic confectionery. That said, the physical act of sucking a lozenge stimulates saliva production, which naturally lubricates and soothes the throat — so even non-medicated lozenges provide genuine comfort.
It is a fair question — and the honest answer is that it depends on the lozenge. The strongest evidence sits with anti-inflammatory lozenges containing flurbiprofen or benzydamine: clinical trials show they can meaningfully reduce sore throat pain for a few hours per dose. The benefit from antiseptic ingredients is more modest, and the evidence that they shorten an infection is limited.
Non-medicated lozenges and drops are not just lollies either, though their effect is gentler. Sucking on any lozenge stimulates saliva, which lubricates and coats an irritated throat — a real, if short-lived, soothing effect. Menthol adds a cooling sensation that many people find eases the scratchy feeling. So a soothing lozenge may help relieve mild discomfort, but it will not reduce inflammation the way a medicated option can.
Difflam lozenges contain benzydamine hydrochloride, a non-steroidal anti-inflammatory drug (NSAID) that works directly on inflamed throat tissue. Clinical studies support benzydamine's effectiveness for reducing sore throat pain and swelling. Available in several flavours including honey & lemon and mint, they are pleasant enough to use regularly throughout the day.
Strepsils is arguably Australia's most recognised throat lozenge brand. The Original formula contains two antiseptic agents — amylmetacresol and 2,4-dichlorobenzyl alcohol — which have been shown to have antibacterial and antiviral activity. The range is extensive, with options including Strepsils Plus (with anaesthetic), Strepsils Honey & Lemon, and Strepsils Intensive (a separate anti-inflammatory product). For a reliable, well-priced antiseptic lozenge, the original is hard to beat.
Soothers are technically throat drops rather than medicated lozenges, containing menthol and eucalyptus oil along with pleasant flavourings like honey and lemon. They work by stimulating saliva flow and providing a cooling menthol sensation that eases throat discomfort. They will not kill bacteria or reduce inflammation, but for a mildly scratchy throat — or when you simply want soothing comfort without medication — they are a great choice. They also taste noticeably better than most medicated options.
Cepacol lozenges deliver a noticeable numbing effect that kicks in quickly — you can feel it working within minutes. They contain cetylpyridinium chloride, an antibacterial agent, and some variants also include a local anaesthetic. The numbness typically lasts around 20 to 30 minutes, making them ideal when you need targeted relief for swallowing, eating, or talking. They are widely available and sit in the mid-price range.
Butter-Menthol lozenges are an Australian classic. They contain menthol as their key soothing ingredient and come in the familiar butter-flavoured drop that generations of Australians have grown up with. At around 15 to 25 cents per lozenge, they are among the most affordable throat soothing options. While they do not contain medicated active ingredients, menthol provides a genuine cooling and mildly anaesthetic effect on the throat. For everyday throat comfort and value for money, they remain a solid choice.
Strepsils Intensive is worth a special mention because it contains flurbiprofen 8.75mg — a proper NSAID that provides anti-inflammatory pain relief similar to Difflam. It is a strong option for more severe sore throat pain and is backed by good clinical evidence. It sits at a higher price point and is pharmacist-only in some formulations, but if Difflam is not available, Strepsils Intensive is an excellent alternative.
| Product | Active Ingredient | Mechanism | Approx. Price Per Lozenge | Best For |
|---|---|---|---|---|
Difflam Lozenges | Benzydamine HCl | Anti-inflammatory | $0.50–$0.80 | Moderate to severe sore throat with swelling |
Strepsils Original | Amylmetacresol + dichlorobenzyl alcohol | Antiseptic | $0.30–$0.50 | General sore throat; early symptoms |
Strepsils Intensive | Flurbiprofen 8.75mg | Anti-inflammatory (NSAID) | $0.60–$0.90 | Severe sore throat pain and inflammation |
Cepacol | Cetylpyridinium chloride | Antibacterial + anaesthetic | $0.35–$0.55 | Quick numbing relief for swallowing and talking |
Soothers | Menthol + eucalyptus oil | Soothing / demulcent | $0.15–$0.30 | Mild irritation; pleasant comfort |
Butter-Menthol | Menthol | Soothing / cooling | $0.15–$0.25 | Mild irritation; best value for money |
This is perhaps the most important distinction to understand when choosing a throat lozenge. Getting it right can save you money and help you get better relief.
Understanding why your throat hurts helps you choose the right treatment — and know when to skip the lozenges and see a doctor instead.
Around 80% of sore throats are caused by viral infections — the common cold, influenza, or COVID-19. These typically come with other symptoms like a runny nose, cough, mild fever, and general tiredness. Viral sore throats resolve on their own within 5 to 7 days. Antibiotics do not help. This is where OTC throat lozenges shine — they provide symptomatic relief while your immune system does the heavy lifting.
About 15-30% of sore throats in children and 5-15% in adults are caused by Group A Streptococcus bacteria — commonly called strep throat. Signs that suggest bacterial infection include a sudden onset of severe throat pain, high fever (above 38.5 degrees Celsius), swollen and tender lymph nodes in the neck, white patches on the tonsils, and absence of cough or runny nose. Strep throat requires a GP visit and usually a course of antibiotics to prevent complications. Lozenges can help with pain while you wait for the antibiotics to kick in.
For genuine pain relief, anti-inflammatory lozenges tend to be the most effective. Those containing flurbiprofen (Strepsils Intensive) or benzydamine (Difflam) act directly on inflamed throat tissue and are backed by the strongest clinical evidence for easing sore throat pain. If your throat is swollen and painful, these are usually the best-performing over-the-counter option. For mild irritation, a soothing or antiseptic lozenge may be all you need.
They are not really competing for the same job. Difflam (benzydamine) is an anti-inflammatory lozenge built around reducing throat pain and swelling, whereas standard Strepsils Original is an antiseptic aimed at the germs in your throat. If pain relief is your priority, Difflam (or the flurbiprofen-based Strepsils Intensive) is likely the stronger choice. If you simply want a soothing, widely available antiseptic lozenge, classic Strepsils does the job at a lower price.
There is no single best sore throat medicine — it depends on your symptoms. For pain and inflammation, an anti-inflammatory lozenge (Difflam or Strepsils Intensive) or oral pain relief such as paracetamol or ibuprofen may help. For a dry, scratchy throat, a soothing lozenge plus warm fluids and a salt-water gargle is often enough. Antiseptic lozenges and sprays can add mild relief. If you are unsure what suits you, your pharmacist can recommend an option based on your symptoms and any other medicines you take.
Each targets a different problem. Anaesthetic lozenges (such as some Cepacol variants) numb the throat for fast, short-lived relief — handy before eating or talking. Antiseptic lozenges (Strepsils Original) aim at germs but offer only modest benefit for the typically viral sore throat. Anti-inflammatory lozenges (Difflam, Strepsils Intensive) reduce inflammation and tend to give the most reliable, longer-lasting pain relief. For everyday sore throat pain, anti-inflammatory options usually come out on top; for a quick numbing fix, reach for an anaesthetic.
It depends on the type. Medicated anti-inflammatory lozenges have clinical evidence for easing sore throat pain, while non-medicated drops mostly soothe by stimulating saliva and adding a cooling menthol sensation — comfort rather than treatment.
Most sore throats are viral and clear up within about a week without antibiotics. Antibiotics are only useful for a confirmed bacterial infection such as strep throat. See your GP if your sore throat lasts longer than 7 days, you have a high fever (above 38.5°C), you notice white patches or pus on your tonsils, you have trouble breathing or swallowing saliva, or you develop a stiff neck. A GP can assess whether you need a throat swab and antibiotics. Lozenges can help relieve pain in the meantime, but they are not a substitute for treatment of a bacterial infection.
Most medicated lozenges are not recommended for young children, partly because of the active ingredients and partly because of the choking risk. Some ranges have child-specific options — for example, Difflam Kids and children's Strepsils formulations — but always check the label for the correct minimum age and dose, as these vary between products. Never give a lozenge to a child under 3 due to the choking hazard. For younger children, ask your pharmacist about age-appropriate options; warm fluids and honey (for children over 12 months) are well-supported alternatives.
Neither is inherently better — they deliver active ingredients differently. Lozenges dissolve slowly and provide sustained contact with the throat over several minutes. Sprays deliver a quick burst of medication. Some people find sprays easier to use, especially children who might chew lozenges. Difflam, for example, is available as both a lozenge and a spray with the same active ingredient (benzydamine). The best choice comes down to personal preference.
This varies by product and you should always follow the directions on the label. As a general guide: Difflam lozenges are typically limited to one every 1.5 to 3 hours (up to 12 per day for adults); Strepsils Original allow one every 2 to 3 hours; Strepsils Intensive is limited to a maximum of 5 lozenges in 24 hours. Non-medicated options like Soothers and Butter-Menthol do not have strict limits, but excessive use adds unnecessary sugar to your diet.
Non-medicated lozenges like Soothers and Butter-Menthol are generally considered safe during pregnancy. However, medicated lozenges — particularly those containing NSAIDs like flurbiprofen (Strepsils Intensive) or benzydamine (Difflam) — should be used with caution. NSAIDs are generally avoided in the third trimester. Always consult your pharmacist or GP before using any medicated throat lozenge during pregnancy or breastfeeding.
Antiseptic lozenges like Strepsils Original do have demonstrated antibacterial and antiviral activity in laboratory settings. However, in practice, their ability to meaningfully reduce the duration or severity of infection is limited. The soothing effect of the lozenge itself — stimulating saliva and coating the throat — may provide as much benefit as the antiseptic action. Anti-inflammatory lozenges (Difflam, Strepsils Intensive) do not claim to kill germs but are typically more effective at reducing actual pain.
Antiseptic lozenges (Strepsils Original) and non-medicated lozenges (Soothers, Butter-Menthol) can generally be used safely alongside oral pain relievers. However, be cautious combining anti-inflammatory lozenges (Difflam, Strepsils Intensive) with oral NSAIDs like ibuprofen (Nurofen), as this doubles up on the same type of drug and may increase the risk of stomach irritation. When in doubt, ask your pharmacist.
This information is general in nature and isn’t a substitute for professional medical advice. Always read the label and follow the directions for use. Talk to your pharmacist or doctor about what’s right for you.
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