A monitoring system comprises: a first device (2) configured to capture an image of a medicament dosage indicated by a medicament dispensing device by an image capturing component of the first device; display the image of the medicament dosage on a display (21) of the first device; and transmit data representing the image of the medicament dosage to a second device; and computer code that when executed by a second device causes the second device (100) to: receive the data representing the image of the medicament dosage sent by the first device (2); perform optical character recognition on the data of the medicament dosage thereby to identify the dosage indicated by the medicament dispensing device; and make a non-transient record of dosage information based at least in part on the identified medicament dosage.