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Erectile dysfunction

What to do when Viagra stops working

Tablets failing is common, and it is usually a sign that something underneath has not been assessed. It is rarely the end of the options.

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Medically reviewed by Dr Mustafa Ganijee, UK GP, 14+ years experience. Last reviewed 2 September 2026.

This article is being written. The headings below are the final structure. Full copy is added by Dr Mustafa Ganijee before publication.

First, check it was taken correctly

Dose, timing, food, alcohol and the number of attempts before a drug is called a failure.

What tablet failure can be telling you

Vascular disease, diabetes, low testosterone, medication side effects and sleep apnoea.

Why erectile dysfunction is a cardiovascular warning

The link with heart disease, and why assessment is not optional.

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The self-assessment takes about a minute and is reviewed by a doctor before your consultation.

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Switching drug or dose

Differences between the common PDE5 inhibitors, and when a change is reasonable.

Options beyond tablets

Shockwave therapy, platelet-rich plasma, injectable therapy and devices, described without overclaiming.

What the evidence supports

Where the data is strong, where it is emerging, and what cannot be promised.

How assessment works here

History, examination, bloods where indicated, and a written plan.

About the author

Dr Mustafa Ganijee is a UK GP with more than 14 years of medical experience and the lead clinician at Alpha Male Clinic in Manchester.

Read more about Dr Mustafa Ganijee

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