As flu season takes hold, many reach for pricey max strength cold and flu remedies in search of relief. But do these expensive pills really work better than basic painkillers? Experts suggest the difference may be minimal.

The Price of Brand Names

A packet of 16 Lemsip All-In-One Max Strength tablets costs £7.30, over 20 times the £0.35 price of generic paracetamol pills in some supermarkets. Both contain 500mg of paracetamol, which relieves pain and reduces fever but does not treat the underlying infection.

Many max strength remedies also include phenylephrine, a decongestant intended to constrict blood vessels in the nose. However, Professor Jayne Lawrence, head of pharmacy at the University of Manchester, notes that there is little evidence it works in tablet form because much of the drug is broken down before reaching the bloodstream. In 2024, the US drug regulator proposed removing phenylephrine from cold and flu pills, though the final decision is pending.

What About Other Ingredients?

Some products contain guaifenesin, which is meant to loosen mucus. The evidence here is mixed: some studies show improvements in chest congestion, while others find little benefit. A spokeswoman for Reckitt, which owns Lemsip and Nurofen, said its ingredients are approved by regulators and formulated to address multiple symptoms including fever, congestion, and coughs.

Many max strength remedies also contain up to 65mg of caffeine per pill, about the same as a mug of instant coffee. Research suggests caffeine may boost the effect of paracetamol and help it work slightly sooner, though any benefit is likely to be modest.

Marketing and Perception

Big brands have more money to spend on advertising and in-store displays. A former manager at a large chemist chain, who spoke on condition of anonymity, said well-known names are often placed at eye level, while budget alternatives are on bottom shelves. "You are always going to promote the ones which are more expensive," she said. She added that customers frequently ask for specific brands, even when told there is little difference.

The PAGB, which represents the consumer healthcare sector, argues that trusted brands can simplify choice and build confidence at a time when health misinformation is widespread.

What Doctors Advise

For cold and flu symptoms, doctors recommend rest, plenty of fluids, and painkillers like paracetamol to control temperature. Be careful not to double up by taking paracetamol alongside cold remedies that already contain it, as this can lead to accidental overdose. The NHS suggests gargling with salt water for a sore throat, and a homemade hot lemon and honey drink can soothe a cough, according to Dr Jamie Hynes, vice president of the Royal College of GPs. See a GP if a cough lasts more than 21 days, if you experience unintentional weight loss, or if you have chest pain or breathing difficulties. Some cold medicines are not suitable for pregnant women, so check with a midwife, pharmacist, or GP before taking them.

While max strength remedies may offer convenience and a familiar name, they are unlikely to speed up recovery more than simple, cheaper alternatives. As Professor Lawrence puts it: "Personally, I'd always go for the cheaper ones - and they've also been tested."