Advantages and disadvantages of contraceptive patch A contraceptive patch offers a lot of advantages. Advantages of Birth Control Patch The main disadvantage with oral contraceptive pills is that the woman has to take the pills every day. Advantages: it's very easy to use and doesn't interrupt sex; unlike the combined oral contraceptive pill, you don't have to think about it every day – you only have … Apart from being highly effective the patch has the efficiency rate of up to 99% in birth control when used properly – a contraceptive patch … The major problem or disadvantage with the patch is that it can increase the risk of blood clot formation more than the conventional pill. Disadvantages of the Birth Control Patch Patches can be a good option if you want effective and long-term birth control that you can quit easily. Advantages and disadvantages of the patch.