Extra 15% off $30 sitewide with code SAVE15; Clip your mystery deal! BOGO 50% off select Walgreens health & wellness.According to the FDA, generic medications contain the same active ingredients as brand names, meaning there’s no difference in effectiveness or safety. Remember that expediting will cost extra. In some cases, online ED providers accept health insurance. These sites may send you dangerous counterfeits instead of the meds you need. Most online pharmacies do not prescribe or refill controlled substances, like Adderall, Xanax, or oxycodone. And not all online pharmacies have the capability to safely ship medications that need to be temperature-controlled, such as insulin.AdComplete the Online Consultation with our Doctor. Personalize Your Needs. If Appropriate, Get a Prescription for ED from RexMD®. Free Shipping AvailableDiscreet Packaging · Personalized Plan · Free Shipping · Real DoctorsSexual health: Premature Ejaculation · Erectile Dysfunction · Breakouts. Treatments for erectile dysfunction are big business, and online scams abound. If you do buy medicines over the internet: Check to see if an online pharmacy is . Extra 15% off $30 sitewide with code SAVE15; Clip your mystery deal! BOGO 50% off select Walgreens health & wellness.Erectile dysfunction medications require a prescription from a licensed provider. The same increase in nitric oxide that helps penile muscles relax also opens up blood vessels, leading to a drop in blood pressure. This boosts blood flow and helps you get an erection from sexual activity. Pain in joints Elevated blood pressure Using this drug may cause serious reactions. Oral medicine for ED also might not be safe or work well if you have: Very low blood pressure, called hypotension, or uncontrolled high blood pressure, called hypertension. Medicines that block an enzyme called CYP3A4.