1 Empty Disposable PD-10 Columns are economical, plastic columns for single-use applications using gravity flow.  The columns hold up to approx. 13 ml of chromatography media; the frits can be used as an upper bed support that prevents the medium from running dry under gravity flow.
1 If you are taking it just once a day, it is usually best to take it in the morning. 2  Some people take prednisone every other day. 3  Taking your dose of prednisone too late in the evening may cause difficulty sleeping.
If you are having difficulty sleeping while taking prednisone, there are some things that you can try. Some tips for better sleep include: 1  Keeping a regular sleep-wake cycle. 2  Try to go to bed and wake up at the same times every day. 3  Avoiding caffeine, alcohol, and nicotine in the four to six hours before bedtime.