I'm in the process of quitting Nardil too. I basically halved my dose and a few days didn't even take it. I don't know what the hell I'm doing. The only withdrawal effects I'm getting are messed up sleep side effects/unrestful state, which includes some dreaming, but the most painful aspect is the unrestfulness of the sleep. There's a physiological component to the sleep issues, such as being zapped awake. I'm also smoking a fair amount; tobacco is an irreversible inhibitor of MAO-A & MAO-B,* so god only knows of the complication that that introduces into the mix.
Nardil definitely represses the libido, that's coming from me as well as a bunch of online posts. How long until I feel like a clean slate again (especially want to know about libido)?
*
Working with mainstream smoke collected from commercial cigarettes we confirmed that cigarette smoke is a potent inhibitor of human MAO-A and -B isozymes.
Tomas Herraiz, Carolina Chaparro, Human monoamine oxidase is inhibited by tobacco smoke: β-carboline alkaloids act as potent and reversible inhibitors, Biochemical and Biophysical Research Communications, Volume 326, Issue 2, 14 January 2005, Pages 378-386, ISSN 0006-291X, 10.1016/j.bbrc.2004.11.033.
(http://www.sciencedirect.com/science/article/pii/S0006291X04025999)
The correlation between the levels of the βCs norharman (inhibitor of MAO B) and harman (inhibitor of MAO A) in tobacco smoke and the proportion of the inhibited isoenzymes in the human brain measured by PET strongly support the notion that these two βCs are responsible for the inhibition of MAO A and B in human brain from smokers.
Hans Rommelspacher. Isoquinolines And Beta-Carbolines As Neurotoxins And Neuroprotectants. Current Topics in Neurotoxicity Volume 1, 2012, pp 115-124
Platelet MAO-B activity, plasma 3,4-dihydroxyphenylglycol, plasma 3,4-dihydroxyphenylacetic acid, and plasma 3,4-dihydroxyphenylalanine concentrations were significantly lower in smokers than in nonsmokers, whereas plasma norepinephrine did not differ.
Ivan Berlin, Sophie Said, Odile Spreux-Varoquaux, Robert Olivares, Jean-Marie Launay, Alain J. Puech. Monoamine oxidase A and B activities in heavy smokers. Biological Psychiatry. Volume 38, Issue 11 , Pages 756-761, 1 December 1995
Inhibitory activity towards monoamine oxidase has been found in a solution of cigarette smoke. The inhibition was irreversible. When tissue slices of rat lung were incubated in the cigarette smoke solution or alternatively, exposed directly to cigarette smoke, monoamine oxidase activities were reduced drastically. Similarly, human saliva after cigarette smoking also exhibits considerable MAO inhibitory activity.
Yu PH, Boulton AA. Irreversible inhibition of monoamine oxidase by some components of cigarette smoke. Life Sci. 1987 Aug 10;41(6):675-82.