Hi Kannan,   I hope you are working closely with your doctor to monitor your health, including the medications he/she has prescribed for you. Do not take any medication or suppliment without letting your pharmacy and your doctor know what you are taking so they can determine if there are any interactions to be concerned about. Even if you are taking natural suppliments, make sure your health professionals know. Even drinking something as benign as grapefruit juice can make medications ineffective or have adverse reactions.   Here is some information about the medications you asked about. I am sorry I was unable to find anything about Zapiz-1.   Quetiapine is known as Seroquel and is a medication commonely prescribed for Schizophrenia disorders. Venlafaxine is known as Effexor  predominantly prescribed as an anti depressant. Read about medications prescribed for anxiety and what they do and how they do it here.   Panicyl is a natural vitamin treatment made up of B12, B6, Folic Acid and Vitamin C, among other things, that is said to be successful for treating anxiety.   Seradyn is another all natural product made from things like Passion Flowers and Niacinamide.   Hope you find something useful here. Remember, online resources are great for managing your health in conjunction with your doctors solid medical care. Take care and stay in touch!Vicki M