Description

Description

Sustac 6.4mg is a nitrate vasodilator manufactured by The Searle Company Limited, formulated with Glyceryl Trinitrate as its active ingredient in a sustained-release tablet form. It belongs to the nitrate class of medicines, used for the long-term prevention of angina rather than for treating an attack already in progress. This pack contains 30 tablets, each carrying a 6.4mg dose. Sustac works by relaxing and widening blood vessels, allowing more oxygen-rich blood to flow to the heart while reducing the workload placed on it, providing extended protection against chest pain over several hours.

Ingredients

Each Sustac 6.4mg tablet contains Glyceryl Trinitrate at a strength of 6.4mg, formulated as a modified-release tablet. Glyceryl Trinitrate belongs to a group of medicines called nitrate vasodilators, which cause the widening of blood vessels and reduce the amount of work the heart must do to pump blood through the body. The sustained-release design allows the medicine to be released gradually, offering protection against angina symptoms over an extended period rather than providing immediate relief. The tablet also contains standard inactive excipients that support its modified-release mechanism and formulation stability.

Dosage Form

Sustac is available as an oral, modified-release tablet, supplied in a pack of 30 tablets. This sustained-release formulation is specifically designed for long-term prevention of angina rather than for relieving an acute attack that has already started.

Uses

Sustac 6.4mg is primarily used for the prophylaxis, or prevention, of angina pectoris, helping reduce the frequency of chest pain episodes related to coronary artery disease. It is also used to help control hypertension during cardiac surgery and to manage perioperative myocardial ischemia in certain clinical settings. By improving blood flow and oxygen supply to the heart muscle, Sustac supports better exercise tolerance and offers long-term protection for individuals with stable angina.

How to Use

Sustac tablets should be taken exactly as prescribed by a physician, generally one to two tablets two to three times daily, taken between meals. The tablet must be swallowed whole with a glass of water and should never be crushed, chewed, or placed under the tongue to dissolve, as it is not intended for sublingual use. Since Sustac tablets are not suitable for treating an angina attack that has already started, a fast-acting nitrate should be used separately for immediate relief if needed, as advised by your doctor.

Side Effects

Common side effects of Sustac may include headache, dizziness, and facial flushing, particularly when treatment is first started. Some patients may experience a drop in blood pressure upon standing suddenly, so rising slowly from sitting or lying positions is advised. In more significant cases of overdose or sensitivity, symptoms such as fainting, rapid heartbeat, or severe low blood pressure may occur. Driving or operating machinery should be avoided until the individual understands how their body responds to the medicine.

Pregnancy & Breastfeeding

There is limited evidence relating to the safety of nitrates like Sustac during pregnancy, so it should not be taken during pregnancy or while breastfeeding unless considered clearly essential by a doctor. Any woman who is pregnant, planning pregnancy, or breastfeeding should discuss the potential risks and benefits with her healthcare provider before starting treatment.

Storage Instructions

Store Sustac tablets in a cool, dry place, away from excessive light, moisture, and heat. Keep the tablets in their original packaging until ready for use to protect them from environmental exposure. Store the medicine out of reach of children and pets, and do not use tablets beyond their printed expiry date.

FAQS

Can Sustac be used to treat an angina attack that has already started?
No, it is a sustained-release formulation intended for prevention, and a fast-acting nitrate should be used separately for immediate relief.

Can Sustac be taken with erectile dysfunction medicines like sildenafil?
No, combining nitrates with sildenafil can cause a severe and potentially dangerous drop in blood pressure, and should be strictly avoided.

Should Sustac tablets be chewed or placed under the tongue?
No, they must be swallowed whole with water, as they are not designed for sublingual or chewable use.

Why is rising slowly from sitting or lying positions recommended?
Sustac can cause a drop in blood pressure, so standing up slowly helps reduce the risk of dizziness or fainting.

Disclaimer

Always use this medicine strictly according to your doctor’s instructions and prescribed dosage.