Erectile dysfunction (ED) is treated with a range of options, from oral medications and lifestyle changes to injections, devices, and surgery. The right approach depends on what’s causing the problem, how severe it is, and your overall health. Most men start with the least invasive options and move to others if needed.
Oral Medications
Oral medications are the most common first-line treatment. Four are currently FDA-approved: sildenafil (Viagra), tadalafil (Cialis), vardenafil (Levitra), and avanafil (Stendra). They all work the same way: by blocking an enzyme that breaks down a chemical signal responsible for relaxing blood vessels in the penis. When that signal stays active longer, blood flows in more easily and erections become firmer.
These medications don’t cause an erection on their own. Sexual arousal is still required to trigger the initial chemical signal. The drugs simply prevent that signal from fading too quickly.
The main practical difference between them is timing. Sildenafil kicks in about 30 minutes after you take it and lasts 4 to 6 hours, with effects sometimes lingering up to 12 hours. Tadalafil can start working in as little as 20 minutes and lasts far longer, up to 72 hours, which is why some men prefer it for a more spontaneous experience. All four are taken before sexual activity, though tadalafil is also available as a low daily dose.
Common side effects include headache, flushing, nasal congestion, and occasionally visual changes. One critical safety concern: these medications must never be combined with nitrate drugs, which are prescribed for chest pain and heart conditions. Both nitrates and ED pills relax blood vessels, and taking them together can cause a dangerous drop in blood pressure. In one study, combining sildenafil with a nitrate lowered average blood pressure from about 100 mmHg to roughly 54 mmHg, a 46% decrease that can be life-threatening, especially in men with narrowed coronary arteries.
Lifestyle Changes That Improve Erections
ED is often an early warning sign of cardiovascular problems, because erections depend on healthy blood flow. That means the same habits that protect your heart can meaningfully improve erectile function, sometimes enough to reduce or eliminate the need for medication.
Weight loss is one of the most effective changes. In overweight or obese men, losing just 5 to 10% of body weight has been shown to improve erectile function, boost testosterone levels, and increase insulin sensitivity. In one study of men with type 2 diabetes, those who lost 10% of their weight saw continued improvement in erectile function even a year later.
Aerobic exercise makes a significant difference as well. A standard protocol of 150 minutes per week (about 30 minutes, five days a week) improved erectile function scores after just three months. The results are even more striking when exercise is combined with medication. In one trial, 78% of men who took an ED pill and exercised at least three hours per week regained normal erectile function, compared to only 39% of men who took the pill alone. Exercise was the single strongest predictor of recovery.
Diet matters too. A Mediterranean-style eating pattern, rich in fruits, vegetables, nuts, whole grains, and olive oil, improved erectile function in men with metabolic syndrome over a two-year study. The men who followed this diet were more than six times as likely to recover normal function compared to controls.
Testosterone Therapy
Low testosterone is a contributing factor in some cases of ED, though it’s rarely the only cause. The American Urological Association defines low testosterone as a total level below 300 ng/dL, confirmed by two separate blood draws taken in the early morning, when testosterone naturally peaks.
Testosterone replacement therapy can improve erectile function in men who are genuinely deficient. In large clinical trials, men receiving testosterone saw modest but measurable improvements in erectile function scores. That said, the improvement varies widely from person to person. Some men notice a clear difference, while others see little change, particularly if their ED is primarily caused by blood vessel problems rather than hormonal ones. Testosterone therapy is typically considered alongside other treatments rather than as a standalone fix.
Penile Injections
For men who don’t respond to oral medications or can’t take them safely, injectable therapy is a well-established alternative. The most common approach uses a synthetic version of a naturally occurring compound that directly relaxes smooth muscle tissue in the penis. You inject a small amount into the base or side of the penis using a fine needle before sexual activity.
The success rate is about 80%, making injections one of the more reliable treatments available. The idea of self-injection understandably makes many men hesitant, but most report that it’s less painful than expected once they’ve been trained on the technique. The main risks are prolonged erections lasting more than four hours (occurring in about 4% of cases, requiring medical attention) and scar tissue forming at injection sites over time (about 8% of cases).
Vacuum Devices
A vacuum erection device is a plastic cylinder placed over the penis. A pump (manual or battery-powered) creates suction that draws blood into the penis, producing an erection. A soft constriction ring is then slipped onto the base to hold the blood in place during sex.
These devices are noninvasive and don’t require medication, which makes them appealing for men with health conditions that rule out other options. Long-term studies show that about 70% of men who try a vacuum device continue using it regularly, and partner satisfaction rates reach 87 to 89%. The erection feels somewhat different than a natural one, as the penis beyond the ring can feel cool and may appear slightly discolored. The ring should not be left on for more than 30 minutes.
Penile Implants
Surgery is generally the last option, reserved for men who haven’t had success with other treatments. Penile implants are devices surgically placed inside the penis that allow you to produce an erection mechanically.
The most common type is the three-piece inflatable implant, which consists of flexible cylinders inside the shaft, a small fluid reservoir placed under the abdominal wall, and a tiny pump in the scrotum. Squeezing the pump transfers fluid into the cylinders, creating an erection that looks and feels the most natural of any implant type. When you’re done, pressing a release valve returns the fluid to the reservoir, and the penis goes fully flaccid.
A two-piece inflatable implant combines the pump and reservoir into a single unit in the scrotum, making surgery simpler but producing a somewhat less firm erection and less complete flaccidity afterward. Satisfaction rates for implants are generally high because men who reach this stage have already tried other approaches and know what to expect. The main risks are infection and, over many years, mechanical failure requiring replacement surgery.
Shockwave Therapy
Low-intensity shockwave therapy uses targeted sound waves aimed at penile tissue, with the goal of stimulating new blood vessel growth and improving blood flow. It has generated significant interest as a potential treatment that addresses the underlying cause of ED rather than just managing symptoms.
However, the American Urological Association currently classifies this treatment as investigational. Clinical trials have used widely varying protocols, ranging from 5 to 12 total sessions with different energy levels and treatment sites, making it difficult to establish a standard approach. Some clinics already offer it, but the evidence isn’t strong enough yet for major medical organizations to recommend it as a proven treatment.