Mr. McDonald estimates the total over-the counter market is about $200 billion a year in sales.

McDonald先生估计所有的非处方市场年销售额约为2000亿美元。

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As medical professionals argue, most alternative medicines are introduced onto the market, via over-the-counter sales or the Internet, without any regulatory oversight.

医疗专业人士指出，大多数替代药物系通过非处方销售或因特网进入市场，不受任何监管。

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In the first few months of 2009, the number of smokers increased by 3.4 per cent while over-the-counter tobacco sales went down by three per cent.

在2009年的前几个月中，吸烟者的人数增加了3.4%，而通过柜台进行的烟草销售则下降了3%。

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Euan Murray, from Barclays Corporate Banking, said higher sales over the Christmas period failed to counter the restrained consumer spending seen through most of the last quarter of 2012.

BBC: Shopper

For example, 7-Eleven and Lawson cannot sell vitamins (which account for 45% of sales of drugs over the counter) unless there is a doctor in the shop.

ECONOMIST: Deregulation in Japan

He believes the system should rely on a range of official sources, such as hospital admissions, prescriptions for anti-viral drug Tamiflu and sales of over-the-counter medicines, rather than anecdotal evidence culled from social media.

BBC: Can crowdsourcing beat the flu?