Hi Loma,I am truly sorry you are in this difficult situation ~ perhaps it is time to take the "veto" rule out of your marriage. It may work on buying a new car but when it comes to your health, as long as you are alert and oriented only you have the right to choose to take or not take medication.
In Latin, veto means "I forbid".
The law of unintended consequence is as universal and as inescapable as the law of gravity, and is certainly more than capable of causing huge issues in your marriage. The most common example of unintended consequence can be found in relationships which have "veto" rules permitting one partner to veto another partner's decision.
Perhaps your husband likes you to be submissive and subservient but I feel you can talk with one another and come to a new understand of how to make your marriage work without the veto rule.
I am the Mother of 4 children and went through a divorce when I had 3 little children - I would have fought like a Mother Bear if anyone suggested they would keep my children away from me - however, my ex wanted no part of being a single Dad so no problem there.
I do understand how hurt and degraded you may be feeling after your husbands words. When you feel up to it, try to explain to him how you felt when he told you "no" you could not take the meds. If he goes on the defense, hold up your hand and simply say, "I am walking away now as you are upset and I cannot talk with you under these circumstances".
Kindly,
Kitt