Section 06 Products of the chemical or allied 30 Pharmaceutical products 30 04 Medicaments of mixed or unmixed products, for retail sale 30 04 90 Transdermal therapeutic system patches for the treatment of cancer or heart diseases 30 04 90 10 Transdermal therapeutic system patches for the treatment of cancer or heart diseases Commodity Code Description 30 04 90 10 00 Transdermal therapeutic system patches for the treatment of cancer or heart diseases