How Does Inderal LA Work?As mentioned, Inderal LA is part of a class of drugs called beta-adrenergic blocking agents, or beta blockers for short. As the name implies, these agents block beta receptors in the body. Beta receptors are located in a number of places within the body, including the heart and blood vessels. Stress hormones like adrenaline attach to these receptors and cause certain reactions in the body, such as an increase in:
- Heart rate
- The force with which the heart pumps blood
- Blood pressure (both systolic blood pressure and diastolic blood pressure).
By blocking beta receptors, this medication reverses the effects of stress hormones. It decreases heart rate and both systolic and diastolic blood pressures, as well as the heart's workload. This means that the heart requires less blood and oxygen to work properly.
Clinical Effects of the MedicationBy lowering blood pressure, Inderal LA can decrease the risks that accompany long-term high blood pressure (see Effects of High Blood Pressure). By decreasing the heart's workload, it can also decrease symptoms of angina, including chest pain. This medication can decrease the frequency of migraines as well, although the way in which it achieves this is not known.
When and How Do I Take Inderal LA?Some general considerations for when and how to take this medication include the following:
- Inderal LA comes in capsule form and is taken once a day.
- This medicine may be taken with or without food.
- Do not break, chew, or crush the capsules.
- Inderal LA should be taken at the same time each day to maintain an even level in your blood.
- For Inderal LA to work properly, you have to take it as prescribed. This medication will not work if you stop taking it.
- You should not stop taking this medication without first discussing it with your healthcare provider. Abruptly stopping treatment can increase the risk of serious side effects (see Inderal LA Warnings and Precautions).