Effective Healthy Levitra Sex Steroid Hormones CAS 224785-91-5 No
Vardenafil (INN) is a PDE5 inhibitor used for treating erectile
dysfunction. Vardenafil's indications and contra-indications are
the same as with other PDE5 inhibitors; it is closely related in
function to sildenafil citrate (Viagra) and tadalafil (Cialis). The
difference between the vardenafil molecule and sildenafil citrate
is a nitrogen atom's position and the change of sildenafil's
piperazine ring methyl group to an ethyl group. Tadalafil is
structurally different from both sildenafil and vardenafil.
Vardenafil's relatively short effective time is comparable to but
somewhat longer than sildenafil's.
CAS No: 224785-91-5
Appearance: white powder, odorless, taste bitter and astringent
soluble in water and alcohol.
Beyond its indications for erectile dysfunction, vardenafil may be
effective in the treatment of premature ejaculation, where it may
significantly increase the time from vaginal penetration to
Vardenafil, as with all PDE5 inhibitors, should not be used by men
taking nitrate medications, because combining them with vardenafil
might provoke potentially life-threatening hypotension (low blood
Further, Vardenafil causing lengthening of the QT interval.
Therefore it should not be taken by men taking other medications
that affect the QT interval (such as amiodarone).
White or almost white crystalline powder
White crystalline powder
Loss of drying
Only one spot
Only one spot
It complies with the USP 32.
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