BEIJING -- China said on Tuesday that it would lower the retail prices of 99 kinds of antimicrobial drugs by an average of 30 percent to squeeze out profits made by drug dealers and hospitals.

The new price caps, involving more than 400 specific products, could save consumers about 4.3 billion yuan (US$540 million), said the National Development and Reform Commission (NDRC).

The rising cost of medical care has put a heavy burden on Chinese patients, leading to widespread protests. Middlemen between drug factories and patients have made huge profits out of drug deals.

"The antimicrobial drugs are chosen as they are widely used in clinical practice and are often the subject of public complaints," said an unnamed NDRC official.

The agency launched an investigation last December into the production costs and actual retail prices of antimicrobial drugs and then moved to finalize the price reduction plan.

The price cut plan will take effect on August 28, according to the NDRC.

NDRC slashed the prices of 67 kinds of anti-tumor drugs by an average of 23 percent in June and reduced consumers' medical costs by 2.3 billion yuan (US$290 million).