be cautious when taking a medicine for the first time, and should check with the doctor whether the prescribed drug will affect their work performance. When is taken by flight or cabin crew that can affect judgement e.g. those with drowsiness or dizziness listed as potential side effects, a suitable period should elapse after the last dose to enable any effects to dissipate. Advice from the Medical Department of the CAA that the dosage regime is "every 4-6 hours' the crew member should not fly until 12 hours has elapsed after the last dose. If dosage is 'every 10-12 hours' then they should not fly until 24 hours has elapsed after the last dose Some cabin crew members who struggle to get adequate sleep during rostered periods of night flying or transmeridian travel have been known to take drugs and medicines to aid sleep; including drugs which are not designed for sleep control, e.g. cold remedies and but which cause drowsiness as a side effect. The use of these drugs to induce sleep is strongly discouraged. Medication is generally taken to relieve the symptoms of illness. Even if the medication does not affect the crew member's performance, they should still ask themselves whether they are fit for work or not. EU-FCL 3 contains information concerning drugs, medication and alcohol. Flight Crew are advised to seek up-to-date advice from their Authority concerning which medication is permissible, since the details change from time to time