Findings have revealed some females failed to properly consult their general practitioner, and as a result were uncertain about which pill was best for them.
A study by UK-based sexual and reproductive healthcare organisation, International, showed some girls on the pill had still become pregnant.
Of 2041 women, 1033 experienced an unplanned pregnancy, and 60 per cent had used at least one form of contraception at the time.
That same organisation pushed for the Government's decision to offer free emergency contraception to women, which has been available without prescription for almost six years.
St George pharmacist Harry Oglos said it was important for younger women in particular to talk to their doctor in detail. "[The pill] is based on individual female cycles, so it's a case of a GP tailoring the right one to them," he said. Women were sometimes confused because of the vast range of pills available. "The new-generation pills have a lot of positive side-effects but the drawback is that they can be expensive, because some are not covered by the Pharmaceutical Benefits Scheme," he said.
Some studies have suggested the pill can even influence a women's choice of partner. They found it can disrupt the ability to find a compatible mate.
Published in the British journal Proceedings Of The Royal Society: Biological Science, one such study by the University of Newcastle, England, attempted to find out if taking the pill influenced odour preferences.
After male scents were taken from volunteers, women were asked to indicate which male body odour samples they found most attractive - both before and after they took the contraceptive.
Women are drawn to the opposite sex via their sense of smell to men who have a dissimilar genetic makeup. The results showed women using the pill shifted towards men with genetically similar odours. Overly similar gene profiles can result in difficulty conceiving a child, increased risk of miscarriage, and weaker immunity.
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there is no such thing as a 'one-size-fits-all' pill.pdf
