can i take anavar?... ganabol?... (along w/ nizoral and spiro)

if i decided to take deca how long should i wait to take it after i stop the propecia??
when can i get back on propecia after i stop the deca??

i have a full head of hair and want to keep it
but cant stop juicing

did all the wrong cycles in the past years ago) but luckily still kept the hair..
now want to do it right and not have to worry about it