They can be taken with or without food. Sexually transmitted infections: Viagra Sildenafil does not protect against sexually transmitted infections such as HIV. Prolonged erection: If an erection lasts longer than 4 hours a rare occurrence , seek immediate medical assistance. Like all other medications, Viagra can also cause side effects, which can be mild to moderate in nature and do not last long. Discreet Packaging Your privacy is important. provides prescription and OTC drugs through a leading pharmacy in Canada and other international pharmacies. We provide thousands of . Buy Viagra online from Pocketpills with FREE prescription delivery and low dispensing fees in Canada. Renew your Viagra prescription or schedule a consultation to receive a new . Being a member of the VIAGRA program will provide you with tips to help you get brand name you’re already receiving brand name VIAGRA, you will get useful .