Combined use could lead to additional lowering of blood pressure, possibly to unsafe levels. Never purchase ED medications from a site or service that doesn’t require a prescription and medical documentation. Cialis should not be used by patients taking nitrates such as nitroglycerin tablets or patches because the combination of these with Cialis could significantly lower blood pressure and lead to fainting or even death in some men. Most online providers require a picture of a valid ID, a selfie showing your face, and a recent blood pressure reading taken with a home blood pressure monitor or by a medical provider. In some cases, online ED providers accept health insurance. Read more on male sexual health on the Sexual Health Australia site. There are many safe, reliable online services offering ED prescriptions.Daily tadalafil (generic Cialis) $8 for a single or 5-mg oral tablet; See Roman’s site for a full list of medications and prices. Note: All prices are current as of October Roman sells the following versions of Cialis: Generic: available in tablets of 5, 10, and 20 milligrams (mg), starting from $11 Daily Generic: available in doses of and 5 mg at $8 Branded. Cost: Most insurance plans It is the generic version of Cialis and works in the same way with similar effectiveness. Roman: branded and generic at 15, 20, 25, and mg, from $4 per dose.