Last year, four London sexual health clinics saw dramatic falls in new HIV infections among gay men of around 40 per cent compared to 2015. This decline may be mostly due to thousands of people buying medicines called pre-exposure prophylaxis (PrEP), which cut the chance of catching the virus, online.

However, buying online raises concerns for both patients and clinicians – primarily safety issues. Can you be sure that the drugs you have ordered from online pharmacies in India and Swaziland (for example) are safe – or even real?

At Harley Street Sexual health, we can advise you on this and other HIV preventative strategies – not least looking at providing blood tests to check the pills are real and urine tests to ensure people aren’t getting kidney damage as a side effect.