A weekly column looking at common treatments/Angina Medication - Glyceryl Trinitrate: What is it? Glyceryl Trinitrate was introduced in the 1800s and is still in use today. It belongs to a group of vasodilator drugs called nitrates used to relieve the pain of angina attacks.
What's it good for? Frequent angina attacks can be disabling and increase the risk of heart attack. Glyceryl Trinitrate is used to relieve the pain of angina and reduce the frequency of attacks. Nitrates are available in several forms; short-acting tablets or spray and slow release preparations in the form of a tablet or skin patch.
How does it work? Nitrates dilate blood vessels by relaxing muscle layers in the vessel wall, allowing blood to be more easily pumped through the vessels, reducing strain on the heart.
Any contradications? These drugs can interact with antihypertensive medication used to lower blood pressure.
Possible side-effects? The initial dose should be taken while sitting down as it can cause dizziness and fainting. Regular checks on blood pressure are recommended. Flushing and headache can also be experienced but adjustment of the dosage usually eliminates these problems.
Dr Muiris Houston Medical Correspondent
Alternative Remedy: Ginseng for increased vitality
What is it? Ginseng is probably the most famous tonic herb in the world. The dried root of different varieties of the ginseng plant cultivated in China, Korea and northeast America is used in Chinese herbal medicine.
What is it good for? It is believed to increase vitality and physical performance. It raises lowered blood pressure and eases depression characterised by physical exhaustion and general debility. It also has a reputation as an aphrodisiac.
How does it work? Known as an adaptogen, ginseng helps the body to adapt to and deal with stress by modifying hormone production via the adrenal and endocrine glands. It boosts general constitution and raises immunity to disease.
Any contraindications? Ginseng is not recommended for those with high blood pressure or anyone under 19. It should not be taken during a cold, flu or viral infection.
Are there any side-effects? Occasionally, the use of ginseng can cause headaches. Over-consumption - particularly in males - can lead to insomnia, anxiety, palpitations and restlessness.
Sylvia Thompson