SPL Set ID: 44ac5de1-c0c6-4d58-9a49-b2dae60ea921
1 drug(s) with this SPL Set ID
Doxycycline hyclate delayed-release tablets, USP for oral administration, contain specially coated pellets of doxycycline hyclate, USP, a broad-spectrum antibacterial synthetically derived from oxytetracycline, in a delayed-release formulation for oral administration. The structural formula for doxycycline hyclate, USP 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 designation 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, USP is a yellow to light yellow powder, freely soluble in water and in methanol; sparingly soluble in alcohol; practically insoluble in chloroform and in ether. It dissolves in aqueous 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. Inactive ingredients in the tablet formulation are: microcrystalline cellulose, lactose monohydrate, croscarmellose sodium, sodium chloride, povidone (K-30), hypromellose, talc, hypromellose phthalate, triethyl citrate, polyethylene glycol 6000, corn starch, lactose anhydrous, low substituted hydroxypropyl cellulose, crospovidone, colloidal silicon dioxide and magnesium stearate. This drug product meets USP Dissolution Test 5. doxycycline-structure.jpg