* Make sure you have a valid prescription from a healthcare professional before purchasing the medication. * Always buy genuine medication from a trusted source. Counterfeit versions of doxycycline are known to exist, so it's important to make sure you're getting a genuine product. * Follow the instructions provided by your healthcare professional when taking doxycycline, including any special precautions or warnings that may apply to you specifically. In conclusion, Doxycycline is an effective medication for treating bacterial infections and can be purchased in Australia with a valid prescription from a healthcare professional. It's important to make sure you are buying genuine medication from a trusted source, following the instructions provided by your healthcare professional, and being aware of the potential side effects and precautions when taking doxycycline.