DynaCirc

Special warnings about DynaCirc

DynaCirc can cause your blood pressure to become too low. If you feel light-headed or faint, contact your doctor.

This medication should be carefully monitored if you have congestive heart failure, especially if you are also taking a beta-blocking medication such as Tenormin or Inderal.

Before having surgery, including dental surgery, tell the doctor that you are taking DynaCirc.

Possible food and drug interactions when taking DynaCirc

If DynaCirc is taken with certain other drugs, the effects of either could be increased, decreased, or altered. It is especially important to check with your doctor before combining DynaCirc with the following:

Beta-blocking blood pressure drugs such as Tenormin, Inderal, and Lopressor
Cimetidine (Tagamet)
Rifampin (Rifadin)

Special information if you are pregnant or breastfeeding

The effects of DynaCirc during pregnancy have not been adequately studied. If you are pregnant or plan to become pregnant, consult your doctor immediately. DynaCirc may appear in breast milk and could affect a nursing infant. If this medication is essential to your health, your doctor may advise you to discontinue breastfeeding until your treatment with DynaCirc is finished.

Recommended dosage

DYNACIRC

Your dosage will be adjusted to meet your individual needs.

The usual starting dose is 2.5 milligrams, 2 times a day, either alone or in combination with a thiazide diuretic drug. DynaCirc may lower blood pressure 2 to 3 hours after taking the first dose, but the full effect of the drug may not take place for 2 to 4 weeks.

After a 2- to 4-week trial, your doctor may increase the dosage by 5 milligrams per day every 2 to 4 weeks until a maximum dose of 20 milligrams per day is reached. Side effects may increase or become more common after a 10-milligram dose.

If you are an older adult or have kidney or liver disease, you should still begin treatment with a 2.5-milligram dose 2 times per day; however, your doctor will monitor you closely, since your condition may alter the effects of this drug.