[Code of Federal Regulations] [Title 21, Volume 5] [Revised as of April 1, 2007] From the U.S. Government Printing Office via GPO Access [CITE: 21CFR343.22] [Page 260] TITLE 21--FOOD AND DRUGS CHAPTER I--FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) PART 343_INTERNAL ANALGESIC, ANTIPYRETIC, AND ANTIRHEUMATIC DRUG PRODUCTS FOR Subpart B_Active Ingredients Sec. 343.22 Permitted combinations of active ingredients for cardiovascular- rheumatologic use. Combinations containing aspirin must meet the standards of an acceptable dissolution test, as set forth in Sec. 343.90. The following combinations are permitted: Aspirin identified in Sec. Sec. 343.12 and 343.13 may be combined with any antacid ingredient identified in Sec. 331.11 of this chapter or any combination of antacids permitted in accordance with Sec. 331.10(a) of this chapter provided that the finished product meets the requirements of Sec. 331.10 of this chapter and is marketed in a form intended for ingestion as a solution.