Do not drink grapefruit juice if you’re taking sildenafil Revatio for pulmonary hypertension. Dima is an online shop that focuses on reproductive health. Sildenafil is also used in both men and women to treat the symptoms of pulmonary arterial hypertension. But, some side effects, including flushing, heartburn, sinus congestion, and headaches, might prevent some men from taking them even though they work well. This medicine is available only with your doctor’s prescription.When you buy from an unknown company, you run the risk of getting counterfeit medicines. By some estimates, more than half of all ED drugs sold online are fakes. Some of these . Can I Buy Viagra Over-the-Counter in the Philippines? Absolutely! Because the med does not necessarily require a prescription from a doctor, you can buy it over-the-counter . Men will no longer require a prescription to obtain the impotence drug Viagra and will instead be able to buy it over the counter at pharmacies. The decision by the UK Medicines and Healthcare.