For some men with ED, it can be difficult to get or keep an erection every time they try to have sex. The most common side effects of VIAGRA: headache; flushing; upset stomach; abnormal vision, such as changes in color vision such as having a blue color tinge and blurred vision; stuffy or runny nose; back pain; muscle pain; nausea; dizziness; rash. This medicine is available only with your doctor’s prescription. When hypertension occurs in the lungs, the heart must work harder to pump enough blood through the lungs. Erectile dysfunction is a relatively common condition If you cannot get or keep an erection firm enough for sex, you may have a medical condition called erectile dysfunction, also known as ED. Stop taking VIAGRA and call your healthcare provider right away if you have any sudden vision loss sudden hearing decrease or hearing loss.Viagra Connect Sildenafil 50mg film-coated tablets – 4 tablets. offer. Viagra Connect Sildenafil 50mg film-coated tablets – 4 tablets. () Write a review. £ 4 UNI | £ per 1UNI. Free next day delivery on selected medicines when you use code HEALTHFNDD, order by 8pm – online only. Helps you get and keep an erection. Viagra Connect is an erectile dysfunction treatment which can be bought without a prescription. Viagra Connect contains Sildenafil 50mg and is designed for men aged 18 and over with erectile dysfunction (ED). It is a safe and discreet over-the-counter medication that can be bought online without seeing your doctor. Viagra Connect is effective for 74% of men, and can help you to get an erection within an hour of taking it. Viagra Connect works in the same way as Viagra, but it is only available at a 50mg dose. Use our online assessment to order. A Superdrug Online Doctor will complete your prescription and we’ll post it to you.