* Make sure you are using a reputable online pharmacy that requires a valid prescription before dispensing medication. * Be aware of the potential side effects of metformin and seek medical attention if you experience any serious adverse events. * Follow the instructions provided by your healthcare provider regarding dosage and use. * Do not share your medication with anyone or take someone else's medication, as it may not be appropriate for you. In conclusion, Metformin is a widely used medication for the treatment of type 2 diabetes, it can be bought without prescription in many countries. It's important to use it responsibly and according to the instructions provided by your healthcare provider. And always buy it from reputable online pharmacy that requires a valid prescription before dispensing medication.