Erectile Dysfunction

Erectile Dysfunction: Causes, Treatments & Medications

Erectile dysfunction (ED) is the persistent inability to achieve or maintain an erection firm enough for satisfactory sexual activity. It affects an estimated 4.3 million men in the UK, with prevalence rising sharply after age 40 — roughly half of men between 40 and 70 experience some degree of erectile difficulty. Despite how common it is, ED remains under-discussed and under-treated, partly because men are unsure where to find reliable, non-promotional information.

This section provides evidence-based answers to the questions men most frequently ask about erectile dysfunction. We cover three broad areas: what causes ED (vascular disease, medication side effects, and psychological factors), which medications are available (including drug interactions, dosing options, and how to obtain prescriptions safely), and what the latest treatment advances look like for men who have not responded to first-line therapy.

Every article draws on published urological research and clinical guidelines. The tone is clinical but accessible — we explain medical concepts in plain language without resorting to scare tactics or promotional claims. If you are looking for a starting point, we recommend beginning with our main guide on drug interactions between Flomax and Cialis, which illustrates how medication safety decisions are made for men managing both BPH and ED simultaneously.

Whether you are newly diagnosed, adjusting your medication, or exploring options after prostate surgery, the articles below are organised by topic so you can find targeted answers quickly.

What This Section Covers

• ED medications & drug interactions — safe combinations, dosing, daily-use options, and purchasing
• ED causes — vascular (atherosclerosis), medication-induced (antihypertensives), and psychological (performance anxiety)
• Treatments & recovery — latest breakthroughs, post-prostatectomy rehabilitation, and the question of cure
• Viagra: side effects & practical usage — headaches, vision changes, duration, herbal alternatives, and generics

Medication Comparison: Sildenafil vs Tadalafil vs Vardenafil

For a closer look at sildenafil dosing — including the lower 20 mg strength often prescribed off-label — see What Is Sildenafil 20mg Used For?. If you are interested in whether a low daily dose could replace on-demand use, read Is There a Daily Viagra?.

ED Medications & Drug Interactions

PDE5 inhibitors (sildenafil, tadalafil, vardenafil) are the first-line pharmacological treatment for erectile dysfunction. They work by increasing blood flow to the penis, but they also interact with other medications — particularly alpha-blockers and nitrates. Understanding these interactions is critical to using ED medication safely.

• Can Flomax and Cialis Be Taken Together? — The most common drug-interaction question for men with BPH and ED. Covers tamsulosin-tadalafil safety, dose-staggering, and blood pressure monitoring.
• What Is Sildenafil 20mg Used For? — Why this lower dose exists, who it is prescribed for, and when it is used for pulmonary arterial hypertension rather than ED.
• Is There a Daily Viagra? — How low-dose daily tadalafil works, who benefits from it, and how it compares to on-demand dosing.
• How to Buy Viagra Online Without a Prescription — Legal considerations in the UK post-reclassification, how to identify legitimate online pharmacies, and risks of unregulated suppliers.

What Causes Erectile Dysfunction?

ED is rarely caused by a single factor. In most men over 40, the underlying cause is vascular — reduced blood flow due to atherosclerosis or endothelial dysfunction. In younger men, psychological causes such as performance anxiety are more common. Some medications, particularly antihypertensives, can also impair erectile function as a side effect. The articles below isolate each cause type so you can identify which applies to your situation.

• Can Clogged Arteries Cause Erectile Dysfunction? — How atherosclerosis affects penile blood flow, the link between cardiovascular disease and ED, and why ED can be an early warning sign of heart disease.
• Can Amlodipine Cause Erectile Dysfunction? — Whether this common blood pressure medication causes ED, what the clinical evidence shows, and alternative antihypertensives with fewer sexual side effects.
• How to Overcome Performance Anxiety and Erectile Dysfunction — The psychological cycle that maintains ED, evidence-based strategies including CBT and sensate focus, and when to consider combining therapy with medication.

Treatments & Recovery

For men who do not respond to oral PDE5 inhibitors — or who have lost erectile function following prostate surgery — several second- and third-line treatments exist. Research into regenerative therapies (shockwave, PRP, stem cells) is also advancing, though evidence remains mixed. This block covers the treatment landscape from newest options to post-surgical recovery.

• Latest Treatments for Erectile Dysfunction — An overview of emerging therapies including low-intensity shockwave therapy, penile injections, and vacuum devices, with current evidence levels for each.
• Can Cialis Restore Erectile Function After Prostatectomy? — How tadalafil is used in penile rehabilitation protocols after radical prostatectomy, expected timelines, and realistic outcomes.
• Does Viagra Cure Erectile Dysfunction? — Why PDE5 inhibitors treat symptoms rather than the underlying cause, and in which cases ED can be reversed through lifestyle changes or treating the root condition.
• Can Tramadol Help You Last Longer in Bed? — The off-label use of tramadol for premature ejaculation, evidence from clinical trials, risks of dependence, and approved alternatives.

Viagra: Side Effects & Practical Usage

Once prescribed, men tend to have practical questions: how long does the effect last, what causes those visual disturbances, how to manage headaches, and whether herbal alternatives work. The articles below address the day-to-day realities of using Viagra and its generics.

• How to Relieve Headaches Caused by ED Medication — Why PDE5 inhibitors cause headaches (vasodilation), which OTC pain relievers are safe to combine, and dose-adjustment strategies.
• What Causes Blue Vision with Viagra? — The PDE6 cross-reactivity mechanism behind cyanopsia, whether it is harmful, and when blue-tinted vision warrants medical attention.
• How Long Does Sildenafil Last? — Pharmacokinetics in plain language: onset, peak plasma concentration, duration, and factors that affect how long the drug stays active.
• Herbal Viagra: Ingredients, Safety, and What to Know — Common ingredients (yohimbine, ginseng, L-arginine), evidence for efficacy, contamination risks, and MHRA warnings about unlicensed products.
• Who Holds the Viagra Patent? — Patent history, when Pfizer's exclusivity ended, and what the availability of generic sildenafil means for pricing and access in the UK.

Frequently Asked Questions

Can I take ED medication with blood pressure pills?

It depends on the class of antihypertensive. Alpha-blockers require careful dose-staggering with PDE5 inhibitors, while calcium channel blockers like amlodipine are generally compatible. Nitrates are an absolute contraindication. See our guide on Flomax and Cialis interactions for specific safety guidance.

How quickly does Viagra work?

Sildenafil typically reaches peak plasma concentration in 30–60 minutes when taken on an empty stomach. High-fat meals can delay onset by up to an hour. Read How Long Does Sildenafil Last? for full pharmacokinetics.

Is ED psychological or physical?

It can be either or both. In men under 40, psychological causes (particularly performance anxiety) are more common. In men over 50, vascular causes predominate. A key diagnostic clue is whether nocturnal erections are preserved. Our article on performance anxiety and ED covers the psychological pathway in detail.

Are herbal alternatives to Viagra safe?

Most herbal ED supplements lack robust clinical evidence and some have been found to contain undeclared pharmaceutical ingredients. The MHRA has issued repeated warnings about contaminated products sold online. See Herbal Viagra: Ingredients, Safety, and What to Know.

Can erectile dysfunction be permanently cured?

In some cases, yes — particularly when ED is caused by reversible factors such as obesity, sedentary lifestyle, or psychological stress. When the cause is progressive vascular disease or nerve damage, treatment focuses on symptom management. Read Does Viagra Cure Erectile Dysfunction? for a balanced perspective.

What happens to erections after prostate surgery?

Erectile function often declines after radical prostatectomy, even with nerve-sparing techniques. Recovery can take 6–24 months. Early penile rehabilitation with daily tadalafil may improve outcomes. See Can Cialis Restore Erectile Function After Prostatectomy?.