Problemer med erektil funktionalitet. Erektil dysfunktion.

Erectile dysfunction is one of the most common and most treatable men's health issues, yet it remains surrounded by silence and misinformation. This section brings together clear, medically cautious answers to the questions men actually ask: how Viagra and sildenafil work and affect the body, the safety questions around blood pressure and the heart, and the causes, specialists, supplements and devices involved.

Our approach is information without scaremongering and without false promises. You will not find shortcuts to buying "without a prescription" here — instead, reliable explanations, with the clear message that diagnosis, prescribing and treatment belong with a doctor.

ED rarely has a single cause. Physical factors such as blood-vessel or hormonal problems, the medicines you take, psychological pressures and lifestyle all interact. Understanding how the pieces fit together leads to better decisions and a more focused conversation with your doctor. The articles below are grouped by theme so you can go straight to your question.

Start here

If you are not sure where to begin, read Does sildenafil increase duration of sexual activity? — it clears up one of the biggest misconceptions about what these medicines do. From there you can move on to the safety questions, the causes, or the supplements and devices, depending on what you need.

Viagra and sildenafil: effects and duration

What these medicines actually do to the body and how long the effects last.

• Does sildenafil increase duration?
• Can Viagra shorten the refractory period?
• What happens after taking Viagra?
• Origin and meaning of the name Viagra
• Other uses of Viagra (German)

Safety: blood pressure, heart, stroke and tests

The cardiovascular questions and the facts on drug tests and legal status.

• Does sildenafil affect blood pressure and heart rate?
• Can low blood pressure cause ED?
• Can Viagra increase the risk of stroke?
• Can Viagra be detected in drug tests?
• Is Viagra a controlled substance?
• Can Viagra pills be split in half?

Causes and specialists

What drives ED and who can help.

• Does metoprolol cause erectile dysfunction?
• Prostate cancer and impotence
• Psychogenic ED treatment
• What does an ED specialist do?

Supplements and devices

What is true about supplements, rings and related options.

• Best vitamins and supplements for ED
• Natural supplements to last longer
• Erectile dysfunction rings
• Alcohol with female Viagra
• Can Cialis increase testosterone?

Throughout, the same principles apply: most erectile dysfunction is treatable, prescription medicines should come through proper channels, and persistent symptoms deserve a medical check that also protects your wider health. Use the themes below to find your question quickly.

Quick reference

If you are wondering…	Start with
Does it make sex last longer	Does sildenafil increase duration?
Is it safe for my heart	Blood pressure and heart rate
Could my medicine cause ED	Metoprolol and ED
Do supplements work	Best vitamins and supplements

Frequently asked questions

Is erectile dysfunction treatable?

In most cases yes — through lifestyle, treating the cause and, where needed, medication or devices.

Do I need a prescription for Viagra?

Yes. Effective medicines are prescription-only; "no prescription" sellers are a counterfeit risk.

Should I think about my general health?

Definitely — ED can be an early warning sign of cardiovascular problems.