Irritating feelings are often there because there is too much acid in your system.

All medications leave an acid residue or ash.

You can correct that by taking potassium gluconate (which helps increase alkalinity of your tissues and fluids or you can squeeze 2 lemons in water and drink it.
Any citric acid food is good for helping with alkalinity. (99mg of elemental potassium is equal to 600 mg. potassium. 2 tablets of 99 mg elemental potassium are the maximum one would need.)

If you aren't better in 4 hours, repeat the "lemon thing", I call it. It works for
some of us.

The usual ingestion of potassium is about 1600 mgs. per day. You'll get enough
in your diet if you have one that allows for many alkaline-reacting products.

These things help reduce the acid load of stress, drugs, some diet habits that include too much sugar, wheat, etc., the most acid-producing foods in digestion.
That would include diet sodas (containing aspartame--which is extremely acidic),
coffee, tea, chocolate, etc. It's all available for you to read online.

It may help with anxiety as well as irritability and impatience. No need for you to
be so irritable, especially while driving an auto. That might place you more at risk
for an accident. We need to keep the system calm.