Purple Viagra Pill relaxes the blood vessels surrounding the penis, enhancing blood flow when a person is sexually aroused. When using Purple Viagra Pill, men can obtain and maintain a firm erection after sexual stimulation quickly. To ensure that you can enjoy sexual activity with your partner, take this medication 30 minutes before engaging in any sexual activity. You can take this medication with or without food. Don't take this medication in conjunction with fattening or alcoholic beverages. Adhere to your doctor's instructions when using this medication.