For Older Men: Pills with Terbutaline for Longer Erection.
Taking over-the - counter pills to increase erection duration can be extremely dangerous.
There are medications such as phosphodiesterase type 5 inhibitors (e.g., Viagra, Cialis, Levitra), but these should be prescribed by a doctor. Without proper medical evaluation, interactions with other medicines you are taking may occur, or may cause serious side effects such as changes in blood pressure, blurred vision, abdominal pain, etc.
In addition, in many cases, erectile dysfunction may have underlying causes that need to be diagnosed and treated appropriately, such as cardiovascular disease, diabetes, psychological disorders, rather than simply resorting to unregulated medications.