Terazosin can cause you to feel lightheaded, dizzy, or weak, especially when you get up from a sitting or lying down terazosin hcl online. Although these effects are most likely to happen following the initial dose, they may happen at any time. You can minimize this problem by taking the medication at bedtime, but special precautions if you need to to get up in the middle of the night. Studies have not been done in humans. In animal studies using terazosin at doses several times those used in man without congenital defects have been found. A decrease in successful pregnancies in these studies, however, has been found.Terazosin helps to relax the muscles in the prostate and the opening of the bladder. This may help to increase the flow of urine and decrease symptoms. However, terazosin will not help reduce the prostate. Prostate can continue to grow. This may cause symptoms to get worse over time. Therefore, even though terazosin may reduce the problems caused by prostate enlargement, surgery may still be required in future. Terazosin may affect your pupils during cataract surgery. Tell your surgeon ahead of time that you are using this medication. Do not discontinue use of terazosin before the surgery unless your surgeon tells you.

The side effects generally disappear as your body adjusts to the medication and do not require medical treatment unless they continue for several weeks or are bothersome: headache or weakness, vision disorder, nausea. Side effects that should be reported to your physician as soon as possible include: lightheadedness, especially when you stand up from a lying or sitting position, fainting, pounding heart, shortness of breath, swelling feet or lower legs.

Terazosin is in FDA pregnancy category C. This means there not known whether terazosin is harmful to an unborn baby. Do not forget to to use caution while driving, operating machinery, or performing other hazardous activities until you know how the medication affects you. Terazosin may cause dizziness or drowsiness, and if you experience these symptoms, you should avoid such activities.

By relaxing the smooth muscles and dilation of the arteries, terazosin can cause a marked drop in blood pressure, particularly when the patient stands up . Orthostatic hypotension may cause the patient to move on when standing. Postural hypotension and syncope are commonly associated with with the first dose or the first days of therapy. Hypotension and syncope can also occur when medication doses are increased abruptly or another medication against hypertension was added. To reduce the risk of excessive hypotension and syncope, terazosin is initiated at low doses and at bedtime lying down. Dose can be gradually increased as necessary.