Let it flow, let it flow.
There are plenty of "pink" painkillers on the market.
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But how effective are they really? A recent ruling in Australia banned painkillers from advertising for specific pains. So I got in touch with a scientist to find out: Lucy Donaldson, associate professor in life sciences at the University of Nottingham.
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The first thing to understand is how period pain works.
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"Period pain (dysmenorrhea) is most commonly thought to result from the release of chemicals called prostaglandins from uterine tissue," Lucy explains.
"This causes the uterus to contract, which causes cramping, but the prostaglandins are also known to cause pain, or make the body more sensitive to other things that will cause pain."
All the below drugs are thought to act by "stopping prostaglandins being produced. They belong to a class of drugs called non-steroidal anti-inflammatory drugs (NSAIDs) which are very widely used pain killers".
(In most cases, the NHS recommends an NSAID for period pain.)
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Panadol Period Pain
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Description: "Period Pain"
Active ingredient: 500mg/65mg paracetamol and caffeine
Cost: £2.39
