Our silent codeine 'epidemic'

Mersyndol, a popular pharmacy-only painkiller, contains 9.75mg codeine phosphate. Photo / Supplied

A married mother-of-two has told how she ate almost 100 Nurofen Plus tablets a day after becoming addicted to the codeine they contain.

The 42-year-old said trawling the pharmacies of her hometown to avoid bulk buying at any one store became a "fulltime job".

The addiction left her like a "zombie" and almost ruined her marriage. She is calling for awareness of the threat posed by the pills.

Her revelations come as a medical expert reports a surge in the number of Kiwis addicted to strong over-the-counter pain relief known as codeine analgesics, mirroring trends in the UK.

Capital and Coast Health chief medical officer Dr Geoff Robinson said the problem was a "silent epidemic" and called for mandatory monitoring by pharmacies.

The Kiwi addict, who spoke on condition of anonymity, started taking Nurofen Plus five or six years ago to ease a pain in her leg that had remained undiagnosed for two decades.

She initially followed recommended dose instructions but within two months she was up to two large packets - 96 tablets - a day.

She said they gave her a "high", a "sense of wellbeing" and "quite a buzz".

"It removed the pain from my leg but it also gave me a lot of energy. I could zoom around the house and do all the housework in 10 minutes. It gave me a great sense of euphoria."

She realised she was addicted when she made repeat visits to the same pharmacies. She said it was a wonder she didn't die.

"I used to look like a drug addict basically, because I was. I looked terrible. I had spots all over my face. I was a zombie, nothing ever got done.

"I was so sick, I wasn't eating, I lost weight, I was sleeping all the time. I had bad stomach aches but they were probably ulcers. I couldn't go to the toilet, I was yellow and my skin was disgusting."

She said she spent about $10,000 on the tablets.

Although she realised she needed help, she felt "isolated", "alienated" and too ashamed to talk to a doctor, friends or even her husband.

"I just hit rock bottom. I could hardly get off the couch, I would sleep all day. My husband and kids were away at work and school so they didn't know."

She was eventually confronted by her mother and sister, and then her husband.