How do I get ventolin inhaler in Tokyo?

This is for my son who has been prescribed ventolin in Australia but we did not bring his inhaler or a prescription to Tokyo.

It's a prescription medicine so you need to see a Pulmonologist.

The substance name is Salbutamol, and it is sold in Japan under different brand names, such as Sultanol (by Glaxo Smith Kline), Venetlin (Glaxo SmithKline or Sankyo), etc., as prescription medicine. You will need to take your son to a doctor - internal medicine or respiratory system specialist will do - for a diagnosis and a prescription.

Thanks to you both. Went to ER at St Luke's International and they attended to us in a minute amount of time(less than 20 mins) and solved our issue splendidly. Out the door with inhaler and onwards to the holiday and importantly health and happiness of our child.