In some cases, a medication may not work and you'll need to try another.

If one medication does not work well for you, talk with your doctor.

I do not think this medication is working for me at all.

So taking them could influence how well your medication works.

And if one medication does not work, there are many others to try.

When used for a long time, this medication may not work as well.

These medications may work well in many people, but they can have serious side effects.

Some people get along well for a long time and then, out of the blue, the medication that was working does not work at all.

This medication may not work as well after it has been taken for several months.

These medications work in a variety of ways to lower blood pressure.