Drug Explorer provides scientific database information about drugs. By optional selection of numerous criteria those drugs can be found that match the selected criteria. Indications, contraindications and side effects can be selected as well as route of administration and elimination, liver and renal function, liquor patency, nephrotoxocity, hepatotoxicity and cardiotoxicity, QT prolongation, recommendations regarding pregnancy and lactation period, metabolisation, inhibition, induction of CYP450 and interaction with foods. A special focus is on antiinfectives (antibiotics, virustatics, antifungals, antiprotozoals and antihelmintics).