EURO MPs can claim for slimming products, anti-ageing treatment and Viagra on the taxpayer, it can be revealed.

Parliamentarians in Brussels have a choice of 32 drugs to help pep up their sex lives, which can be prescribed by the EU parliament's doctor.

Other medications available on expenses include hair removal services, breast reduction surgery and growth hormones.

According to internal documents, seen by The Sun, euro MPs can even claim reimbursement for surgery for "removal of a foreign body from the rectum".

The payments are covered by the institution's £4 million medical budget, which also covers retired MEPs, family members and staff.

EU Parliament budget documents show that eurocrats spent £2.5 million reimbursing MEPs' expenses last year.

Euro MPs can usually claim back up to two thirds of a treatment, but in special circumstances they are covered for the entire cost.

In some cases, such as prescriptions of Viagra, slimming products and anti-ageing treatment, they need prior authorisation from a doctor.

Impotence drugs are given to members with "erectile disorders caused by a prostate operation, accident or recognised serious illness".

MEPs, who earn a minimum of £90,000 a year, can also claim for routine medical expenses such as trips to the GP.

A source said: "UK taxpayers will find this hard to accept. They're getting shafted so elderly MEPs can get their leg over."

Insiders pointed out a significant number of euro MPs are men of retirement age, while many of their staffers are young women in their 20s.

British MEP Diane James added: "Medical insurance is there to help people face emergencies and difficulties outside their control.

"It's certainly not for playing 'Carry On, Nurse' - there can't be many bona fide reasons why the European Parliament needs to prescribe Viagra."

A Parliament spokeswoman said MEPs have "no NHS available for them" but stressed costs are only be reimbursed if they're for a "medical necessity".

She said: "Since MEPs' salaries come out of the European Parliament's own budget, their pensions and health insurance do too.

"Under the insurance, MEPs can be reimbursed for a maximum of 66.6% of medically necessary expenses – this may be less because for a number of specific treatments a ceiling in acceptable cost is in place.

"Expenses are only reimbursed in the case of medical necessity. And in a number of specific cases, prior authorisation must be requested, filled in by a doctor and approved by the independent EU medical officer."