顶裂又称裂片，是指片剂由模孔中推出后，易因振动等而使面向上冲的一薄层裂开并零落的气象；偶然乃至由片剂腰部裂为两片，但较少爆发。

　　baofaliepiandeyuanyou，chuantongdeshenmingshikelizhongxifenduo，suoduanqiankelikongxizhongyoufenwei，youyusuoduansulvjiaokuai，youyinchonghemokongbijiandekongdihenxiao，suoduanlichengzhongfenweibunengshunsuipaiji，beifengbiyupianneidekongdinei；dangyalixiaochuhou，fenweisuoduanerbaofaliepian。juyishangshenmingyingchechukelizhongdexifenhuozaiyapianjishangzengjiayuyazhuangbei，shifenweiyiyuyichu。danyouliangduoqixiangbunengshenming，bifangyongweijingxianweisujikeyaxingdianfende100muyishangdefenmozhijieyapianbingbubaofaliepian；youjiashezaiyalijiaodashibaofaliepian，danshiwaibujianggaoyalikeyihuoxubimianliepian；kelipianjisibanyiyuliepian，diaoduhanshuiliangkeyihuoxukefuliepiantimu。yourenjiangbaofaliepiandekeliyongzhiyuzhenkongtixizhongdeyapianjiyapian，rengxianxianliepian。

　　裂片的首要原由是颗粒的缩短步履不适宜，是由于颗粒有较强弹性，压成的药片的弹性规复率高；又因压力漫衍不均匀等引发。用单冲压片机压片刻，片剂的上表面压力较大；用扭转压片机压片刻，片剂的上、下表面的压力较大；由于弹性规复率与压力巨细有关，以是在片剂上表面或上、下表面的弹性规复高；片剂的上表面受压光阴最短并起首移出模孔并离开模孔的束厄局促，以是易由顶部裂开。

　　yongcijiliweisuoshikeyihuoxumixinshexiangchufangyibimianliepian，bingduiqianmiansuoliechudetimuzuochuhelinghuida，bifangdiaojiechufang，zengjiasuxingqiangdefuliao，gailiangkelidesuoduanchengxingxing，purexitongpianyiyuliepian，canyushiliangdekeyaxingdianfenkeyihuoxuchuzhicitimudeng。dedangjianggaoyalikeyihuoxubimianliepian，shiyinyalixiao，danxingguifulvyexiao；zengjiasuoduanguangyinkezengdasuxingbianxingdequxiangerkebimianliepian；kelizhonghanyoushiliangshuifen，kezengqiangkelidesuxingbingyouhuaniganhua，shiyigailiangyalimanyan，kebimianliepian。biede，canyuyoulianghuanijihezhuliujiyigaibianyalimanyanyeshikefuliepiantimudeyouyongshouduan。

　　liepiandebiedeyuanyourumokongbianxing、mosun，yixuejiaohui|wangsoujizhengliyapianjidechongtoushouweixianhetuipiankexiachongweitaidaoyumokongshangyuanxiangpingdegaodudeng。

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