وفر 50٪ من خلال الاشتراك السنوي في مجرة واحصل على تصفح لا محدود لأفضل محتوى عربي على الإنترنت.

اشترك الآن

تمت عملية الاشتراك بنجاح

إغلاق

عذراً، عذرا،أنت مشترك مسبقاً بالنشرة البريدية

إغلاق

عذراً، هناك مشكلة في البريد الالكتروني

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get_post_type: string(7) "concept"

الطب

عمر نصفي للدواء |  Half-life of drugs

26 أبريل 2020


المدة الزمنية التي ينخفض فيها تركيز الدواء في الجسم إلى النصف، وهو مصطلح مهم جداً لتحديد الجرعات الدوائية ومواعيدها.