Method and apparatus in connection with an inhaler

A training device for training a patient to use a breath-activated dry powder inhaler correctly, the training device comprising:

• a breath-activated dry powder inhaler that is constructed to move a dose of powdered medicament into position for inhalation when activated by a patient, and to subsequently dispense said dose when a patient applies a sufficient inspiratory flow to said inhaler;
• an activation signal constructed to indicate to a patient an instruction to activate the inhaler;
• an activation sensor constructed to detect when a patient has activated the inhaler;
• an inhalation signal constructed to indicate to a patient, after detection of inhaler activation, an instruction to inhale through the inhaler;
• an inhalation flow sensor constructed to measure the inspiratory flow rate through the inhaler;
• and
• a flow signal to indicate to a patient the inspiratory flow applied,
• wherein each of said activation sensor and said inhalation sensor comprises a microphone,
• wherein said activation sensor further comprises a position transducer and said activation signal comprises an indicator for indicating whether the inhaler is held in a correct position during activation.