well its week 4 of test and eq, i have been stuffed up and fatigued all week. i started coughing really hard yesterday, i am off to the doctor right now, can i take the z-pack with steriods for the cold. i am coughing my head off. plus i am going to see if he will give me a shot of vitamin b 12. thanks for any info. the z pack is just an antibiotic you take for 5 days. good stuff