Praziquantel is the first choice of chemical medicines.

目前首选治疗药物为吡喹酮；

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Retail: proprietary Chinese medicine, Chinese medicine yinpian, chemical medicine preparations, antibiotics, biochemical medicines.

零售：中成药，中药饮片，化学药制剂，抗生素，生化药品。

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Recently, there are a drastic growth in the combination use of herbs and chemical medicines, which leads to a large number of drug interactions and adverse effects.

近年来，植物药与化学药联合应用日益增多，引起诸多药物相互作用和不良反应。

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Last July,the Food and Drug Administration advised manufacturers to add what are called physical chemical identifiers to their medicines.

VOA: special.2010.03.01

The shift toward synthetic chemical medicines occurred in the 20th Century, but according to Mark Blumenthal, the founder and executive director of the American Botanical Council, there is renewed interest in the medicinal benefits of natural foods - including those found in the pills.

BBC: Plants found in ancient pills offer medicinal insight

The drug Kadcyla from Roche combines the established drug Herceptin with a powerful chemotherapy drug and a third chemical linking the medicines together.

NPR: FDA Approves New Targeted Breast Cancer Drug

Among the leaves and sticks and stones, the Stanford University chemical engineer is pioneering a radical method for producing new medicines to treat infections, cancer and other scourges--with the help of tiny, genetically modified soil bacteria.

FORBES: A Dirty Business