Buy Paxil 20 mg online medication helps improve the mood, sleep, appetite, and energy level of the patient by enhancing the level of serotonin released in their brain. Paxil can be taken along with other medications in order to obtain better and fast results. Doctors recommended the intake of 20 mg of Paxil per day at the beginning of the treatment. Ignoring the doctor’s advice can lead to a case of a drug overdose. Addiction cases are very rare while using Paxil. Some side effects seen after using Paxil are anxiety, tiredness, tremors, nausea, dizziness, constipation, etc.