I am sorry Martha gets upset in the car.
Feed her a canned food
meal with turkey a half hour before you leave. It contains l-triptophan and is sleep inducing.
Add one quarter of a 4 mg clortimeton. It is a tiny pill so she will not detect it. It should also make her sleepy and calm.
When in the car, keep a towel that has been sprayed with Feliway.That will keep her calm.
Put rescue remedy in her water:
Some cats feel better if the carrier is covered.
It is best if she remains in the carrier while you drive because any short stop or sharp turn can rattle her and she can be thrown about as well.
Please let me know how things go.
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