A Long-term Safety and Tolerability Study of Ezetimibe Plus Atorvastatin in Participants With Coronary Heart Disease, Multiple Risk Factors, or Hypercholesterolemia Not Controlled by Atorvastatin (P01418/MK-0653-032)

Inclusion Criteria: * Participants who have successfully completed the 14-week double-blind, efficacy and safety study of SCH 58235 in addition to atorvastatin in participants with CHD or multiple risk factors or HeFH, (Protocol P00693/MK-0653-030; NCT03867318). Entry into this protocol must occur at the time of completion of Protocol P00693/MK-0653-030; NCT03867318 * All women must have a negative pregnancy test prior to study entry. Women of child bearing potential must agree to practice an effective barrier method of birth control for the duration of the study. In addition, participants must agree to practice an effective barrier method of birth control for 30 days following the last dose of atorvastatin administered * Postmenopausal women who are receiving postmenopausal hormonal therapy or raloxifene must be maintained on a stable estrogen (ERT), estrogen/progestin (HRT) or raloxifene regimen during study period Exclusion Criteria: * Participants who discontinued from the Protocol P00693 due to adverse events or poor compliance * Pregnant or lactating women * Participants who are known to be HIV positive