Panadol, Panamax, Herron, Chemist Own — same active ingredient, very different prices. Compare common formulations and learn how to check value per tablet and per dose.
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.
Standard paracetamol tablets commonly contain 500mg per tablet. Formulation matters: Panadol Rapid and Panadol Osteo are different products with different features. Compare the active ingredient, strength, release type and other ingredients before using price to choose between products.
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.
| Product | Pack | Supply | Pack Price | Cost Per Tablet/Caplet | Price Checked |
|---|---|---|---|---|---|
Panadol paracetamol 500mg tablets | 16 tablets | General sale | $3.99 | 24.9c | 28 Oct 2026 |
Panadol Rapid paracetamol 500mg caplets | 16 caplets | General sale | $5.99 | 37.4c | 28 Oct 2026 |
Panadol paracetamol 500mg tablets | 100 tablets | Pharmacist Only (S3) | $16.99 | 17.0c | 28 Oct 2026 |
Panamax paracetamol 500mg tablets | 100 tablets | Pharmacist Only (S3) | $4.39 | 4.4c | 28 Oct 2026 |
Panadol Osteo paracetamol 665mg modified-release caplets | 96 caplets | Pharmacist Only (S3) | $10.99 | 11.4c | 28 Oct 2026 |
Calculation: pack price ÷ number of tablets or caplets = cost per unit. Cost per tablet is not cost per dose or equivalent relief: a standard dose is one or two 500mg tablets, and Osteo 665mg modified-release caplets have separate directions. For 500mg tablets and caplets, supply depends on pack size. Blister packs of up to 16 are on general sale, blister or strip packs of up to 50 are Pharmacy Medicines (S2), and packs of up to 100 are Pharmacist Only (S3), so you need to speak to the pharmacist. Herron and Chemists' Own are not in the table because we could not record a current listed price for them. Buy only what you need: a larger pack is not automatically better value for you.
Price differences between paracetamol products come from both brand and formulation, not the active ingredient. Here is how the main forms sold in Australia differ. (For pricing, see the cost 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 caplet (sodium bicarbonate) | 500mg | Manufacturer reports faster absorption than regular Panadol 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 one standard 500mg tablet option to include in a price comparison. It is not a proven lowest-price choice at every pharmacy. Compare the current pack cost and tablet count with other standard formulations.
Panadol Rapid contains 500mg paracetamol per caplet. Its manufacturer reports faster absorption than regular Panadol tablets, rather than superiority over every other formulation. The CMI states that two caplets contain 352mg sodium; ask your pharmacist about suitability if you need to limit sodium.
Panadol Rapid paracetamol 500mg caplets · 20 caplets
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Panadol Osteo is a modified-release (sustained-release) formulation designed for conditions requiring around-the-clock management like osteoarthritis. Each 665mg caplet releases paracetamol 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.
Panadol Osteo paracetamol 665mg modified-release caplets · 96 caplets
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Herron is another brand to compare when looking for standard paracetamol. Check the exact strength, formulation and pack count. Brand familiarity alone does not establish better relief or better value.
No verified product link is available yet. Check the pack with a pharmacist before you buy. This does not mean the product is out of stock.
Include pharmacy own-brand paracetamol in your comparison, checking the label for strength and release type. A lower pack price is only useful if you also account for tablet count and suitability; this guide does not establish a current cheapest brand.
No verified product link is available yet. Check the pack with a pharmacist before you buy. This does not mean the product is out of stock.
Compare standard 500mg Panadol and Panamax tablets separately from Rapid, Osteo or combination products. Check current labels for active and inactive ingredients and directions. Ask your pharmacist whether a lower-priced standard formulation is suitable for you.
| Detail | Standard Tablets (500mg) | Panadol Osteo (665mg SR) |
|---|---|---|
Single dose | 1–2 tablets (500–1000mg) | 2 caplets (1330mg) |
Frequency | Every 4–6 hours as needed | Three times a day, 6–8 hours apart |
Maximum daily dose | 8 tablets (4000mg / 4g) | 6 caplets (3990mg) |
Minimum gap | 4 hours | 6 hours |
These are adult label limits, not a target dose. Follow your product label and any lower limit advised by your health professional. Ask for advice if you are underweight or have liver or kidney problems. Swallow Osteo caplets whole; do not crush or chew them. Do not combine different paracetamol-containing products.
Standard 500mg paracetamol products share an active ingredient and strength, but brand ranges include different formulations and other ingredients. Check the exact product label. This comparison does not establish identical onset of relief across every brand or formulation.
Brand name alone does not establish better relief. Compare the exact formulation and strength, and ask a pharmacist about suitable alternatives. Faster absorption claims are specific to the products compared and do not prove that a brand is best for everyone.
Standard Panadol and Panamax tablets contain 500mg paracetamol. Compare current pack prices for like-for-like products. Panadol also has other formulations, including Rapid and Osteo, which should be considered separately.
The cost table shows one retailer's shelf prices on the date checked; it does not establish the cheapest brand everywhere. Compare current pack cost divided by tablet count for the same strength and release type. Buy only what you need; do not choose a larger pack simply to stockpile.
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.
The Panadol Osteo CMI says adults should use it for only a few days unless a doctor advises longer. Ask a pharmacist or doctor about persistent pain and whether this modified-release formulation is suitable for you.
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.
For children aged 1 month to 12 years, Healthdirect gives the paracetamol dose by weight (15mg per kilogram), with no more than four doses in 24 hours. This is usually given as a measured children's liquid, such as Panadol Children's or Dymadon. Use the measuring device provided and follow the label for that product. Some standard 500mg tablets have label directions for children aged 7 to 12, while others, such as Panadol Rapid, are not for children under 12; only use a tablet if its pack gives directions for your child's age. Do not give paracetamol to babies under one month old unless a doctor advises it, and see a doctor if your child needs it for more than 48 hours. If you are unsure of the right product or dose, ask your pharmacist.
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.
Some adults can use both for short-term pain, but ask a pharmacist first whether this suits you. Working differently in the body does not remove either medicine's risks. Follow each product's own dose, interval and daily limit, and write down what you take and when. Combination tablets already contain both ingredients, so do not add separate paracetamol or ibuprofen to them without professional advice.
The time to relief varies. Panadol Rapid has a manufacturer claim of faster absorption than regular Panadol tablets; that is not a promise of pain relief within 15 minutes. Follow the dosing interval on the label even if relief has not started.
Get help immediately, even if you feel fine. If you have taken too much, call 000 for an ambulance or go to your nearest emergency department. If you are not sure whether the amount was too much, call the Poisons Information Centre on 13 11 26 (24 hours, Australia-wide). Do not wait for symptoms: they can take a day or more to appear, and liver damage may not show for 2 to 3 days or longer. Treatment works best when started early.
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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