doxycycline hyclate delayed release - Medication Listings

Doxycycline hyclate delayed-release tablets, USP, contain specially coated pellets of doxycycline hyclate, a tetracycline class drug synthetically derived from oxytetracycline, in a delayed-release formulation for oral administration. The structural formula for doxycycline hyclate is: with a molecular formula of C 22 H 24 N 2 O 8 , HCl, ½ C 2 H 6 O, ½ H 2 O and a molecular weight of 512.9. The chemical name for doxycycline hyclate is [4S(4aR,5S,5aR,6R,12aS)]-4-(dimethylamino)-1,4,4a,5,5a,6,11,12a-octahydro-3,5,10,12,12a-pentahydroxy-6-methyl-1,11-deoxonaphthacene-2-carboxamide monohydrochloride, compound with ethyl alcohol (2:1), monohydrate. Doxycycline hyclate is a yellow crystalline powder soluble in water and in solutions of alkali hydroxides and carbonates. Doxycycline has a high degree of lipid solubility and a low affinity for calcium binding. It is highly stable in normal human serum. Doxycycline will not degrade into an epianhydro form. Each tablet contains doxycycline 75 mg, 100 mg, 150 mg or 200 mg (equivalent to doxycycline hyclate 86.6 mg, 115.4 mg, 173.1 mg or 230.8 mg). Inactive ingredients in the tablet formulation are: lactose monohydrate, microcrystalline cellulose; sodium lauryl sulfate, sodium chloride, hypromellose phthalate, hypromellose, triethyl citrate, anhydrous lactose, crospovidone, stearic acid, magnesium stearate. The tablets also contain opadry 03K29121 clear, which contains: hypromellose and triacetin. Each doxycycline hyclate delayed-release tablets 75 mg tablet contains 4.8 mg (0.208 mEq) of sodium, each doxycycline hyclate delayed-release tablets 100 mg tablet contains 6.4 mg (0.278 mEq) of sodium, each doxycycline hyclate delayed-release tablets 150 mg tablet contains 9.6 mg (0.417 mEq) of sodium, and each doxycycline hyclate delayed-release tablets 200 mg tablet contains 12.8 mg (0.556 mEq) of sodium. USP dissolution test pending. Image