The prescribed medicines by the doctor are to be verified by confirming with a pharmacist. Here they play an important role in helping you. Experts at the Mayo Clinic suggest you make your pharmacist part of your health care team, alongside your physician. It's a good idea, for instance, to have all your medications dispensed at the once pharmacy. If the pharmacist can see a complete list of all the drugs you are on - including any herbal remedies or supplements - they can quickly alert you to the possibility of any interactions or adverse effects.
And when you are prescribed a new medication, talk to your pharmacist about it. Might it interact with drugs you are already taking or with certain foods? Will it have an adverse effect on medical conditions other than the one it's prescribed for? Remember, your pharmacist's expertise goes far beyond just dispensing the drug - he or she has a wealth of experience with what has been prescribed for you, and may have more time than your doctor to discuss your medications.