DESCRIPTION
PeriostatÔ is available as a 20
mg capsule formulation of doxycycline
hyclate for oral administration.
Doxycycline is synthetically derived from oxytetracycline. The
empirical formula of doxycycline
hyclate is (C22H24N2O8HCl)2C2H6OH2O
with a molecular weight
of 1025.89. The chemical
designation for doxycycline is 4-(dimethylamino)-1,4,4a,5,5a,6,11,12a-octahydro-3,5,10,
12, 12a-pentahydroxy-6-methyl-1,11-dioxo-2-naphthacenecarboxamide
monohydrochloride, compound
with ethyl alcohol
(2:1) monohydrate.
Doxycycline hyclate is a light
yellow crystalline
powder which is soluble
in water.
Inert ingredients in the formulation are: hard gelatin
capsules; magnesium stearate; and microcrystalline
cellulose. Each capsule
contains doxycycline hyclate equivalent
to 20 mg of doxycycline.