The dosage, safety, efficiency, and power of generic ED medicines are equal to that of their brand-name counterparts. These PDE5 inhibitors may cause headache, flushing, drop in blood pressure, or other adverse effects. A survey revealed that engaging in a minute walk daily can reduce ED risk [6]. Despite the availability of generics, brand-name ED meds continue to rise in price [2]. Maiorino, Maria Ida, et al. These medicines are called PDE5 inhibitors.Do you need a prescription for Viagra alternatives? Yes, if you are considering erectile dysfunction medications similar to Viagra — like Cialis, generic Viagra, and generic Cialis — it. Cialis. Rather than Viagra’s 50 or mg blue pills, Cialis comes in lower doses, the smallest of which is just mg. That allows for daily use, ensuring the drug’s always in your system.  · An analysis in the June Sexual Medicine found that, on average, 40 minutes of moderate to vigorous aerobic activity, four times a week for six months, can improve ED. The type of exercise did not matter as long as the proper intensity was met; examples include jogging, swimming, cycling, circuit-type .