They can have side effects and should not be taken with certain other medicines.

Your doctor may tell you to stop taking certain medicines a few days before the test.

Taking certain medicines can also cause this lack of interest.

Check whether a certain medicine is helping to lower your blood pressure.

In some patients, high blood pressure is related to other medical problems or to the use of certain medicines.

It can also be started by certain medicines used to treat other conditions.

You may be instructed to stop taking certain medicines before the test.

This is particularly the case for pesticides and certain medicines.

Some types of pain respond better to certain medicines than others.

Smoking can also affect the level of certain medicines in your blood.