“Please contact our Customer Welfare Team on + 44 203 451 2585 (UK) or ++ 353 1 6056500 (Ireland) (calls from landlines cost the standard rate, but calls from mobiles may be higher - check with your network provider)”

“Carrying medication and medical equipment

If you’ll be carrying medication or medical equipment with you into the aircraft cabin, you’ll need to bring a doctor’s letter or prescription that shows all the items you need. This is to make sure you can pass through check-in and security without any problems
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If the size or weight of your medication is more than your baggage allowance, we’ll normally be able to carry it free of charge for you as hold baggage, but you need to call our Welfare Team before you go to pre-book.

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If you need to use medical equipment on the flight:

If you need to use any medical equipment onboard your flight, you’ll need to give our Customer Welfare team a call before you travel. Please have your flight details to hand when you call us. We’ll need the following details about the equipment:

Name of equipment
Manufacturer
Make and Model
Size
Whether it is battery-operated
Type and wattage of battery, if it’s battery-operated
Weight

We’ll also need to know whether you’ll need to use the equipment during take-off or landing, regularly, or occasionally, while you’re in the air.

Our Cabin Safety team will then be able to check the equipment is safe to use onboard.”

Be sure to take a written prescription for your meds (at least take them in containers with recent prescription labels), particularly the morphine, for both the authorities at airports and Mexico. Mexico has, ironically, some very strict laws about opiates, opioids, amphetamines, etc.

Best wishes for a safe and comfortable journey.