The objective of the study is to evaluate the effect of the dispenser's buzzer function on compliance with daily tablet intake of an ethinyl estradiol (EE) + drospirenone (DRSP) containing oral contraceptive (OC) in a flexible extended regimen when administered for approximately 12 months to healthy female volunteers who request contraception.

Inclusion Criteria:

• Healthy female volunteers between 18 and 35 years of age (smokers up to 30 years, inclusive) who request contraceptive protection

Exclusion Criteria:

• Pregnancy or lactation (less than 3 months since delivery, abortion, or lactation before start of treatment)
• Body mass index (BMI) >/= 30.0 kg/m2
• Presence or a history of venous or arterial thrombotic/thromboembolic events
• Repeated measurements of systolic blood pressure > 140 mmHg and/or diastolic blood pressure > 90 mmHg.
• Presence or history of liver tumors (benign or malignant), severe hepatic disease, jaundice and/or pruritus related to cholestasis, cholestatic jaundice associated with pregnancy or previous COC use
• Uncontrolled diabetes mellitus and/or diabetes mellitus with vascular involvement
• Severe dyslipoproteinemia
• Malignant or premalignant disease
• Uncontrolled thyroid disorder
• Chronic inflammatory bowel disease
• Severe renal insufficiency or acute renal failure
• History of migraine with focal neurologic symptoms
• Epilepsy