Hi,
Please please don't rely on any kind of medicine. They have so many side effects which little by little in future they appear.
Depression is because of some grief/ traumatic event in life and without finishing this grief, you never can feel better. The reason of grief and sadness never cured with medicine. Medicine can only decreased some symptoms only and after that side effects...
If you consult with a psychologist/therapist, they can help you to finish your grief or and thought in your subconscious mind and for sure you will feel better soon.
Do take care.
Next Steps
There are so many techniques for treatment of depression, a psychologist/therapist can help you step by step by all these techniques.