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当一种新药进入市场,病人期望的是安全有效.然而,由于新药临床试验中查试病人最多不超过3000人,将使一些药物机率出现为万分之一的不良反应不易被发现.何况在药物研制中幼儿、老人、孕妇此类人群和合并用药的病人或患复杂病症的病人,均被排除在临床试验对象之外.事实上,确有不少药物通过了临床试验后,而在应用中被确认该药有未被发现的不良反应.
When a new drug enters the market, the patient expects to be safe and effective, however, since the maximum number of patients to be tested in a clinical trial of new drugs does not exceed 3,000, adverse effects such as a 10% chance of some drugs are not easily detected Drug development in children, the elderly, pregnant women such groups and patients with medication or patients with complex disorders were excluded from the clinical trial of the object.In fact, there are indeed many drugs after the passage of clinical trials, and in the application Was confirmed that the drug has not been found in adverse reactions.