GlaxoSmithKline Pharmaceuticals (GSK India) is the top of the pill heap. India's leading pharmaceutical manufacturer, the company makes pharmaceuticals and consumer health care products through its two manufacturing facilities in Nashik and Thane; it also has a clinical development center in Bangalore. Its products include those targeting problems with infections, gynecology, dermatology, diabetes, and the cardiovascular system. Top sellers are Augmentin, Zinetac, Calpol, Phexin, and Betnesol. GSK India also makes vaccines to treat or prevent hepatitis A and B, the flu, chickenpox, and tetanus. Its distribution network stretches throughout the country. UK-based drugmaker GlaxoSmithKline owns GSK India.