Imdur

Special warnings about Imdur

Do not abruptly stop taking this medication. Follow your doctor's plan for a gradual withdrawal.

Since Imdur can cause dizziness, you should be careful while driving, operating machinery, or performing other tasks that demand concentration.

Nitrate-type medications such as Imdur may aggravate angina caused by certain heart conditions.

Do not try to avoid a headache by changing your dose. If your headache stops, it may mean the drug has lost its effectiveness.

Be sure to tell your doctor about any medical conditions you have before starting Imdur therapy.

Possible food and drug interactions when taking Imdur

If Imdur is taken with certain other drugs, the effects of either could be increased, decreased, or altered. Extreme low blood pressure with dizziness and fainting upon standing up may occur if Imdur is taken with the impotence drug Viagra or calcium-blocking blood pressure medications such as Calan, Cardizem, and Procardia.

Alcohol may interact with Imdur and cause a swift decrease in blood pressure, possibly resulting in light-headedness.

Special information if you are pregnant or breastfeeding

The effects of Imdur during pregnancy have not been adequately studied. If you are pregnant or plan to become pregnant, tell your doctor immediately. Imdur should be used during pregnancy only if it is clearly needed.

It is not known whether Imdur appears in breast milk. If the drug is essential to your health, your doctor may advise you to stop nursing until your treatment is finished.

Recommended dosage

ADULTS

The usual starting dose is 30 milligrams (taken as a single 30-milligram tablet or as one-half of a 60-milligram tablet) or 60 milligrams once a day.

After several days, your doctor may increase the dose to 120 milligrams (a single 120-milligram tablet or two 60-milligram tablets) once daily.

Your doctor may further adjust the dosage according to your response to the medication.

CHILDREN

Safety and effectiveness of Imdur in children have not been established.

Overdosage

Any medication taken in excess can have serious consequences. Severe overdosage of Imdur can be fatal. If you suspect an overdose, seek medical help immediately.

• Symptoms of Imdur overdose may include:
  Air hunger, bloody diarrhea, coma, confusion, difficulty breathing, fainting, fever, nausea, palpitations, paralysis, pressure in the head, profuse sweating, seizures, skin either cold and clammy or flushed, slow heartbeat, throbbing headache, vertigo, visual disturbances, vomiting