[Mari]

Sinequan (Doxepin): Side Effects, Interactions, Warning, Dosage & Uses
SINEQUAN (doxepin HCl)
See the lines in the hexagon.

Silenor - FDA prescribing information, side effects and uses
SILENOR (doxepin hydrochloride)
Scroll to number 11. DESCRIPTION for the picture of Silenor.


(The three complete hexagons make a tricyclic antidepressant.)

Hubby is a chemistry buff. He says that the difference has to do with the
location of the double bonds on the side of the hexagon of the molecule.

The locations of the double bond make a difference in the strength of the molecule
but the molecule is not fundamentally different: has the same
number of Hydrogen, Oxygen, Nitrogen, and Carbon
ELEMENTS.


I have looked at this a million times over the past few days and do not see the difference.
I did understand it when hubby explained this to me in words
instead of pictures a few minutes ago. (He is more visually oriented than I am.)

=-=-=-=-

(It is possible that the two pictures I found are not clear.
I apologize. It is best I could do
without posting a screen shot --- not allowed on this site.

M