Panadol, Panamax, Herron, Chemist Own — same active ingredient, very different prices. We compare every formulation and show where to find the best value in Australia.
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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Paracetamol is so familiar that most people buy it without thinking too hard about it. Then they notice one box costs a few dollars while another costs a lot more, even though both still say paracetamol on the front. Some of those differences are useful. Plenty are just branding and format.
Generic paracetamol contains the same active ingredient (500mg paracetamol per standard tablet) and must meet the same TGA quality and manufacturing standards as Panadol, so there's no difference in how well it relieves pain or fever — only in price and formulation. Brands like Panamax, Herron and pharmacy own-brands are typically a fraction of the price of Panadol. The main reasons to choose a specific product are formulation (such as Panadol Osteo's slow-release form or Rapid's faster-dissolving tablets) and personal preference.
Paracetamol (known as acetaminophen in the US) is an analgesic (pain reliever) and antipyretic (fever reducer). It works by blocking chemical messengers in the brain that tell us we are in pain. Unlike ibuprofen or aspirin, paracetamol has no anti-inflammatory effect. However, it is gentler on the stomach and safe for most people when used correctly.
| Brand | Form | Pack Size | Typical Price | Price Per Dose | Key Feature |
|---|---|---|---|---|---|
Panadol | Tablet | 20 tablets | $4.50–$5.50 | ~23–28c | Most recognised brand |
Panadol Rapid | Caplet | 20 caplets | $6.00–$8.00 | ~30–40c | Faster absorption |
Panamax | Tablet | 100 tablets | $3.50–$5.00 | ~4–5c | Best value |
Herron | Tablet | 20 tablets | $2.50–$3.50 | ~13–18c | Affordable mid-range |
Chemist Own | Tablet | 100 tablets | $3.00–$4.50 | ~3–5c | Cheapest per dose |
Panadol Osteo | SR Caplet | 96 caplets | $15–$18 | ~16–19c | Sustained-release 665mg |
Most of the price difference between paracetamol products comes down to formulation, not the active ingredient. Here is how the main forms sold in Australia differ. (For pricing, see the brand comparison table above — the table below focuses on form, strength and best use.)
| Formulation | Strength | How It Works | Best Suited To |
|---|---|---|---|
Standard tablet/caplet | 500mg | Standard-release; the everyday default | Headaches, fever, general aches |
Rapid (Optizorb) | 500mg | Dissolves and absorbs faster than standard tablets | When you want relief to start sooner |
Osteo (modified-release) | 665mg | Slow-release; longer-lasting cover from each dose | Persistent conditions like osteoarthritis (pharmacist-only) |
Extra (with caffeine) | 500mg + 65mg caffeine | Caffeine added as an adjuvant alongside paracetamol | Some tension-type headaches |
Soluble/effervescent | 500mg | Dissolved in water before drinking | Those who find tablets hard to swallow |
Children's (Dymadon, Panadol Children's) | Liquid suspension, dosed by weight | Measured oral liquid for kids | Children — always use the age-appropriate product |
Panamax is the straightforward value pick. It is plain paracetamol without the branding premium, which is exactly why it stands out. If you want a reliable box at home for headaches, fevers, and general aches, it is hard to justify paying much more.
Panadol Rapid suits the moments when waiting feels frustrating, like a headache building at work or pain you want under control before a long drive home. The faster absorption is the selling point, but you are paying for convenience rather than a different active ingredient.
Panadol Osteo is a modified-release (sustained-release) formulation designed for conditions requiring around-the-clock management like osteoarthritis. Its 665mg dose is released gradually, which can provide longer-lasting cover than a standard 500mg tablet. Note: Panadol Osteo is pharmacist-only (Schedule 3), so you'll need to ask the pharmacy team for it rather than picking it off the open shelf.
Herron is an Australian-owned brand that sits between premium Panadol and bare-bones generics. Searches for Herron paracetamol have climbed sharply, and it's easy to see why: it offers familiar branding and easy-to-find packs at a noticeably lower price than Panadol, while delivering the same 500mg paracetamol. If you like a recognisable name but don't want to pay the Panadol premium, Herron is a sensible middle ground.
Chemist Own is the pharmacy-brand paracetamol carried by many chemists, and it's consistently one of the cheapest options per dose in Australia. It contains the same 500mg paracetamol as Panadol and meets the same TGA bioequivalence standards, so buying a larger pack costs a fraction of the price of branded tablets for identical pain and fever relief.
Panadol vs Panamax is the most common paracetamol question in Australia — and for standard tablets the honest answer is that the two are interchangeable. Both contain 500mg of paracetamol per tablet, both hold a valid AUST R registration, and both must meet the same TGA bioequivalence standards, meaning each delivers the same amount of active ingredient at effectively the same rate. The difference you'll actually notice is at the checkout: Panamax typically costs a fraction of Panadol per dose. Choose Panadol if you specifically want a particular formulation (such as Rapid or Osteo) or simply prefer the brand; choose Panamax if you want plain, effective paracetamol for the lowest cost.
| Detail | Standard Tablets (500mg) | Panadol Osteo (665mg SR) |
|---|---|---|
| Single dose | 1–2 tablets (500–1000mg) | 2 caplets (1330mg) |
| Frequency | Every 4–6 hours | Every 6–8 hours |
| Maximum daily dose | 8 tablets (4000mg / 4g) | 6 caplets (3990mg) |
| Minimum gap | 4 hours | 6 hours |
For standard tablets, no. All paracetamol products in Australia must be registered with the TGA and meet bioequivalence standards. Generic manufacturers must demonstrate their product delivers the same amount of active ingredient, at the same rate. Standard Panadol, Panamax, Herron and pharmacy own-brand tablets all deliver the same 500mg of paracetamol in effectively the same timeframe — so paying more buys you branding or a specific formulation, not better pain relief.
For standard tablets, no. All paracetamol 500mg products must meet the same TGA bioequivalence standards. Panadol's rapid-release formulations may absorb slightly faster, but the pain-relieving effect is the same once absorbed.
The active ingredient is identical: 500mg of paracetamol per tablet. The difference is branding and price — Panamax is a generic that typically costs far less per dose, while Panadol carries a brand premium and offers extra formulations (Rapid, Osteo, Extra) that Panamax doesn't. For everyday headaches and fever, they relieve pain the same way.
Pharmacy own-brand paracetamol (such as Chemist Own) and Panamax are consistently the cheapest per dose, often a small fraction of the cost of branded Panadol. Buying a larger 100-tablet pack rather than a small 20-tablet box also lowers the cost per tablet. Prices vary between pharmacies, so it's worth comparing.
Panadol Osteo is a modified-release (slow-release) paracetamol containing 665mg per caplet, designed to provide longer-lasting cover for people managing persistent conditions such as osteoarthritis. It's pharmacist-only (Schedule 3), so you'll need to ask the pharmacy team. Because the dose and timing differ from standard 500mg tablets, follow the specific Osteo directions rather than the regular dosing schedule.
Panadol Osteo is intended for ongoing use under the guidance of a health professional, but it should still be taken exactly as directed and never above its stated maximum daily dose. Because it's a higher-strength, slow-release form, your pharmacist or GP is best placed to confirm it suits you — especially if you have liver concerns, drink alcohol regularly, or take other medicines containing paracetamol.
For most healthy adults using standard 500mg tablets, the maximum is 4g (4000mg) in any 24-hour period — that's 8 x 500mg tablets, with no more than 1000mg (two tablets) every 4 hours. This 4g limit applies to paracetamol from all sources combined, including cold and flu and combination products. Slow-release Panadol Osteo has its own separate maximum, so always follow the directions on the specific product.
Children should be given an age-appropriate children's paracetamol — typically a measured oral liquid such as Panadol Children's or Dymadon — dosed by the child's weight, not adult tablets. Always use the measuring device provided and follow the on-pack instructions. For infants, or if you're unsure of the right dose, check with your pharmacist or GP before giving anything.
Paracetamol is processed by the liver, and taking more than the recommended dose is the main concern for liver health — which is why staying within 4g a day matters. Ibuprofen, by contrast, is more associated with stomach and kidney effects than the liver. Neither is "safe" in overdose; the key is using each at its recommended dose. If you have existing liver or kidney problems, ask your pharmacist or GP which is more suitable for you.
Yes, this is generally safe for adults because they work through different mechanisms. Many GPs recommend alternating between the two for more effective pain relief. Always follow the recommended dose for each.
Standard tablets typically start working within 30–60 minutes. Rapid-release formulations like Panadol Rapid may begin working in approximately 15 minutes. Relief generally lasts 4–6 hours.
Seek medical advice immediately — even if you feel fine. Paracetamol overdose symptoms may not appear for 24–72 hours. Call the Poisons Information Centre on 13 11 26 (24 hours, Australia-wide) or go to your nearest emergency department.
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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