always just used as a pre w/o- but when I did oral just did 10 mg in the am. for 4 weeks. Started @ 30 and had terrible sides(mostly lethargy) so ended up @ 10. Injectable is much better imo-as far as sides and it just works better especially as pre w/o. But they both work-give a good burst of strength. as far as half life- I'm sure Max is right- s-drol works great if you've hit a wall/plateau imo. btw- it's very easy to hurt yourself- pushing too much- it made me think I was superman so.......watch out for the kryptonite. I could handle a little more inj. like 20 to 30 mgs 30 to 45 mins before w/o. good luck man!