Isotrate Tablet 20mg

About Isotrate Tablet 20mg

Isotrate Tablet Uses

• Prevention of angina (chest pain) episodes in people with coronary artery disease
• Long term management of chronic stable angina
• Adjunct use alongside other heart medicines in select cases of heart failure
• Reduction in the frequency of exercise induced chest tightness

Isotrate Tablet Benefits

• Blood vessel widening that eases the heart's workload
• Improved blood flow to the heart muscle
• Fewer and less severe angina attacks with consistent use
• Once daily and twice daily dosing options that support better routine adherence

What Experts Say

Pharmacologists prescribe isosorbide mononitrate on an asymmetric twice daily schedule, often seven hours apart, because continuous nitrate exposure blunts the vasodilatory response within twenty four hours. This deliberate nitrate free interval preserves long term efficacy and explains why dosing timing matters more than the total daily amount for this drug class.

Coronary artery disease remains a leading cause of cardiac mortality in Pakistan, driven by high rates of diabetes, hypertension and tobacco use. Physicians commonly add a long acting nitrate to a beta blocker or calcium channel blocker once symptom control with a single agent proves insufficient, particularly in patients with frequent angina episodes.

Follow up monitoring focuses on blood pressure and symptom frequency rather than routine lab work. Clinicians caution patients against combining this medicine with erectile dysfunction drugs, since the resulting drop in blood pressure can become dangerous within minutes, and they emphasize gradual dose titration to limit nitrate headache.

Drug Class

• Nitrate
• Antianginal agent
• Vasodilator

Isotrate Tablet 20mg formula

• Isosorbide Mononitrate

Available forms

• Tablet

How to use Isotrate Tablet 20mg?

• This tablet should be taken by mouth with a full glass of water, with or without food.
• The two daily doses should be spaced about seven to eight hours apart, as directed by your doctor, to maintain a nitrate free period overnight.
• The tablet should be swallowed whole, without crushing or chewing, unless your doctor advises otherwise.
• A few minutes of sitting down after the first few doses can help if lightheadedness occurs.
• This medicine should not be stopped suddenly without consulting your doctor, since abrupt withdrawal can worsen angina.
• Alcohol should be avoided while taking this medicine, as it can intensify low blood pressure effects.

Drug Interactions

• PDE5 Inhibitors: Concurrent use with sildenafil, tadalafil or vardenafil can cause a severe, sometimes fatal, drop in blood pressure.
• Riociguat: Concurrent use is contraindicated due to the risk of profound hypotension.
• Other Antihypertensives: Beta blockers, calcium channel blockers and diuretics can add to the blood pressure lowering effect.
• Alcohol: The risk of dizziness and fainting increases when this medicine is combined with alcohol.
• Other Nitrates: The use of more than one nitrate product at a time raises the risk of excessive hypotension.

Risks and warnings

• Low Blood Pressure: A sudden drop in blood pressure can occur, especially after the first dose, leading to dizziness or fainting.
• Severe Headache: Headache is common when starting treatment and usually improves as the body adjusts.
• Nitrate Tolerance: Effectiveness can decrease with continuous use, so a nitrate free interval is built into the dosing schedule.
• PDE5 Inhibitor Interaction: Sildenafil, tadalafil and vardenafil should never be combined with this medicine, since the result can be life threatening low blood pressure.
• Not For Acute Attacks: This tablet prevents angina but does not relieve a sudden chest pain episode already in progress.

Isotrate Tablet Side Effects

• Headache, often described as throbbing, especially in the first days of treatment
• Dizziness or lightheadedness, particularly on standing up quickly
• Low blood pressure
• Flushing of the face and neck
• Fast or irregular heartbeat
• Nausea or upset stomach
• Fainting in sensitive individuals
• Skin rash in rare cases

Storage Conditions

• Store at room temperature, between 15 and 30 degrees Celsius.
• Keep the tablets in their original, tightly closed container.
• Protect from direct sunlight and excess moisture.
• Keep out of reach of children.
• Discard any unused or expired tablets safely.