Tramadol is an FDA regulated pain killer which is mainly prescribed in the treatment of moderate to severe pain. It binds to certain receptors in the brain and lessens the impact of pain. This habit-forming medication should preferably be taken for a limited duration. Individuals with a history of heart surgery, kidney transplant and other preexisting medical complications such as diabetes and hypertension should share their medical reports with a physician prior to its use. One can check the reference page of online pharmacies to check the risk of addiction and withdrawal symptoms. As compared to other opioid medicines, the risk of side effects is far less with this drug.  Nausea, dizziness and lightheadedness are some mild side effects which go within a week’s time. However, rare side effects such as seizures, convulsions and irregular heartbeat should be immediately brought to the notice of an emergency professional.  Online customers can visit any online pharmacy and get Tramadol next day delivery in UK.