Each tablet, for oral administration, contains oxycodone hydrochloride and acetaminophen in the following strengths:

Oxycodone Hydrochloride, USP                            5 mg*
Acetaminophen, USP 325 mg
*5 mg oxycodone HCl is equivalent to 4.4815 mg of oxycodone.

Oxycodone Hydrochloride, USP                         7.5 mg*
Acetaminophen, USP 325 mg
*7.5 mg oxycodone HCl is equivalent to 6.7228 mg of oxycodone.

Oxycodone Hydrochloride, USP                         7.5 mg*
Acetaminophen, USP 500 mg
*7.5 mg oxycodone HCl is equivalent to 6.7228 mg of oxycodone.

Oxycodone Hydrochloride, USP                          10 mg*
Acetaminophen, USP 325 mg
*10 mg oxycodone HCl is equivalent to 8.9637 mg of oxycodone.

Oxycodone Hydrochloride, USP                          10 mg*
Acetaminophen, USP 650 mg
*10 mg oxycodone HCl is equivalent to 8.9637 mg of oxycodone.

All strengths of ENDOCET also contain the following inactive ingredients: Colloidal silicon dioxide, croscarmellose sodium, crospovidone, microcrystalline cellulose, povidone, pregelatinized cornstarch, and stearic acid. In addition, the 7.5 mg/325 mg and the 7.5 mg/500 mg strengths contain FD&C Yellow No. 6 Aluminum Lake. The 10 mg/325 mg and the 10 mg/650 mg strengths contain D&C Yellow No. 10 Aluminum Lake.

Oxycodone, 14-hydroxydihydrocodeinone, is a semisynthetic opioid analgesic which occurs as a white, odorless, crystalline powder having a saline, bitter taste. The molecular formula for oxycodone hydrochloride is C₁₈H₂₁NO₄•HCl and the molecular weight 351.83. It is derived from the opium alkaloid thebaine, and may be represented by the following structural formula:

Acetaminophen, 4'-hydroxyacetanilide, is a non-opiate, non-salicylate analgesic and antipyretic which occurs as a white, odorless, crystalline powder, possessing a slightly bitter taste. The molecular formula for acetaminophen is C₈H₉NO₂ and the molecular weight is 151.17. It may be represented by the following structural formula:

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