円罐[marugama] cylindrical boiler
罐詰[kanzume] packing (in cans)
藥罐[yakan] kettle
薬罐頭[yakanatama] bald head

汽罐[kikan] boiler
罐焚き[kamataki] stoker
薬罐をかける[yakanwokakeru] to put a kettle on (the stove)

胃薬[igusuri] stomach medicine
医薬[iyaku] medicine
医薬品[iyakuhin] medical supplies
医薬分業[iyakubungyou] separation of medical and dispensary practice (practise)
飲薬[nomigusuri] oral medicine

下し薬[kudashigusuri] laxative
下ろし薬[oroshigusuri] an abortive
下薬[geyaku] laxative
加薬[kayaku] spices
火薬[kayaku] gunpowder