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Absorption Peak plasma levels of celecoxib occur approximately 3 hrs after an oral dose. Under fasting conditions, both peak plasma levels (Cmax) and area under the curve (AUC) are roughly dose proportional up to 200 mg BID; at higher doses there are less than proportional increases in Cmax and AUC (see Food Effects). Absolute bioavailability studies have not been conducted. With multiple dosing, steady state conditions are reached on or before day 5. Food Effects When CELEBREX capsules were taken with a high fat meal, peak plasma levels were delayed for about 1 to 2 hours with an increase in total absorption (AUC) of 10% to 20%. Under fasting conditions, at doses above 200 mg, there is less than a proportional increase in Cmax and AUC, which is thought to be due to the low solubility of the drug in aqueous media. Coadministration of CELEBREX with an aluminum- and magnesium-containing antacid resulted in a reduction in plasma celecoxib concentrations with a decrease of 37% in Cmax and 10% in AUC. |
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Absorption Peak plasma levels of celecoxib occur approximately 3 hrs after an oral dose. Under fasting conditions, both peak plasma levels (Cmax) and area under the curve (AUC) are roughly dose proportional up to 200 mg BID; at higher doses there are less than proportional increases in Cmax and AUC (see Food Effects). Absolute bioavailability studies have not been conducted. With multiple dosing, steady state conditions are reached on or before day 5. ÎüÊÕ ¿Ú·þÈýСʱºóÈûÀ´Îô²¼´ïµ½Ñª½¬·åÖµ¡£¿Õ¸¹×´Ì¬Ï£¬Ñª½¬·åÖµ£¨Cmax£©ºÍÇúÏßÏÂÃæ»ý£¨AUC£©ÔÚ200mg BIDϼÁÁ¿³É±ÈÀý£»¸ü¸ß¼ÁÁ¿Ï£¬CmaxºÍAUCÔö³¤µÍÓÚ±ÈÀý£¨¼ûʳÎï×÷Óã©¡£Î´×÷¾ø¶ÔÉúÎïÀûÓöÈÑо¿¡£ ¶à´Î¸øÒ©£¬ÔÚµÚÎåÌì´ïµ½ÎÈ̬Ìõ¼þ£¬»ò¸üÔç¡£ Food Effects When CELEBREX capsules were taken with a high fat meal, peak plasma levels were delayed for about 1 to 2 hours with an increase in total absorption (AUC) of 10% to 20%. Under fasting conditions, at doses above 200 mg, there is less than a proportional increase in Cmax and AUC, which is thought to be due to the low solubility of the drug in aqueous media. Coadministration of CELEBREX with an aluminum- and magnesium-containing antacid resulted in a reduction in plasma celecoxib concentrations with a decrease of 37% in Cmax and 10% in AUC. ʳÎï×÷Óà ÈûÀ´Îô²¼Ëæ¸ßÖ¬·¾Ê³Îïͬ·þ£¬Ñª½¬·åÖµÑÓ³Ù1-2Сʱ£¬Í¬Ê±×ÜÌåÎüÊÕ£¨AUC£©ÉÏÉý10-20%¡£¿Õ¸¹×´Ì¬Ï£¬200mgÒÔÉϼÁÁ¿£¬CmaxºÍAUCÔö³¤µÍÓÚ±ÈÀý£¬ÕâÊÇÓÉÓÚÒ©ÎïÔÚË®½éÖÊÖÐÈܽâÐԽϵ͡£ÈûÀ´Îô²¼Ó뺬ÂÁ»òº¬Ã¾¿¹ËáÒ©ÎïºÏÓõ¼ÖÂÈûÀ´Îô²¼Ñª½¬Å¨¶ÈϽµ£¬CmaxºÍAUC·Ö±ðϽµ37%ºÍ10%¡£ |
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