en Toxicology پژوهشي Research Article <div style="text-align: justify;">Herbs are considered as effective remedies to heal diseases worldwide. As a result of given increasing trend of air, water and soil pollutions, health and quality of these herbs have now become a quite serious and important issue to be attention to. One of the main concerns is the presence of heavy metals in herbal drugs. In this study, the amount of lead, cadmium, and copper in edible herbal dribbles present in Iranian drug market have been measured with the aid of a polarography technique, Differential Pulse Stripping Voltammetry (DPSV). The simultaneous determination of the target elements was done in samples obtained from herbal drops present in citywide drugstores was performed. It was observed that the mean values of measured ions in the samples were beneath WHO and FDA&rsquo;s standards and the concentration of cadmium in most samples was beneath the applied technique detection limit and consequently could not be traced.</div> Lead, Copper, Cadmium, Herbal drugs, Polarography 1 4 http://ijpt.iums.ac.ir/browse.php?a_code=A-10-111-1&slc_lang=en&sid=1 MARYAM RAVANBAKHSH 10031947532846001442 10031947532846001442 No Department of Medicinal Chemistry, Faculty of Pharmacy and Pharmaceutical Sciences Research Center, Tehran University of Medical Sciences, Tehran, Iran SHABNAM MAHERNIA 10031947532846001443 10031947532846001443 No Department of Medicinal Chemistry, Faculty of Pharmacy and Pharmaceutical Sciences Research Center, Tehran University of Medical Sciences, Tehran, Iran KOWSAR BAGHERZADEH 10031947532846001444 10031947532846001444 No Razi Drug Research Center, Iran University of Medical Sciences, Tehran, Iran ORKIDEH GHORBAN DADRASS 10031947532846001445 10031947532846001445 No Department of Medicinal Chemistry, Pharmaceutical Sciences Branch (IAUPS), Islamic Azad University, Tehran, Iran MASSOUD AMANLOU 10031947532846001446 10031947532846001446 Yes Department of Medicinal Chemistry, Faculty of Pharmacy and Pharmaceutical Sciences Research Center, Tehran University of Medical Sciences, Tehran, Iran