Generic Hytrin

Common use

Hytrin is terazosin hydrochloride, the substance which belongs to alpha 1 blockers class. It relaxes smooth muscles of the arteries and lowers blood pressure. It is used to treat urinary obstruction caused by an enlarged prostate, prostate adenoma, arterial hypertension, heart failure in the initial stage, hyperlipidemia.



Dosage and direction

take this medication exactly as prescribed to you with or without food. The recommended dose of Hytrin is 1 mg once time before your bedtime. The dose may be gradually increased up to 10-20 mg take once daily.



Precautions

Follow all recommendations of your doctor. Never take more of the medication than it was prescribed to you. Take Hytrin with a full glass of water. As this medication may cause drop in blood pressure and dizziness take it before your bedtime, especially first doses. Dizziness and drop in blood pressure are also possible if you restart taking Hytron after a break. Blood pressure or prostate tests should be done on a regular basis while you are on Hytrin. Do not stop taking this medication even if you feel fine.



Contraindications

Hytrin cannot be administered to the patients with hypersensitivity, hypotension, in pregnant and breastfeeding women, and in children.



Side effects

Weakness, fatigue, drowsiness, restlessness, headache, dizziness, paresthesias, decreased libido, changes in vision, tinnitus (noise in the ear), "a phenomenon of the first dose" (a sudden and severe decrease in blood pressure and orthostatic collapse after the first dose), hypotension, tachycardia, arrhythmias, peripheral edema, cough, bronchitis, xerostomia (dry mouth), sore throat, nausea, vomiting, arthralgia, myalgia, decline in hematocrit and hemoglobin, leukopenia, hypoalbuminemia, hypoproteinemia, flu-like syndrome, allergic reactions.



Drug interaction

Inform your doctor if you are currently treated by sildenafil (Viagra, Revatio), vardenafil (Levitra), tadalafil (Cialis), other blood pressure medications such as verapamil (Isoptin, Calan, Covera, Verelan).



Missed dose

If you forgot to take your dose in time, please do it as soon as you remember. But do not take if it is too late or time for your next dose is in a short while. Do not take double doses of this medication or extra doses of it. Take your usually dose next day in the same regularly time.



Overdose

Symptoms of overdose include tachycardia, hypotension, orthostatic collaps. If you experience the symptoms listed above contact your doctor as soon as possible as you may need immediate medical help.



Storage

Store at room temperature between 20-25 C (68-77 F). Store away from moisture, heat, and sunlight. It is not recommended to store in a bathroom and places available for children.



Disclaimer

We provide only general information about medications which does not cover all directions, possible drug integrations, or precautions. Information at the site cannot be used for self-treatment and self-diagnosis. Any specific instructions for a particular patient should be agreed with your health care adviser or doctor in charge of the case. We disclaim reliability of this information and mistakes it could contain. We are not responsible for any direct, indirect, special or other indirect damage as a result of any use of the information on this site and also for consequences of self-treatment.

Clinical Verification

Last Clinically Updated: August 15, 2026

Written By

Dr. Elena Vance, PharmD

Clinical Specialist in Neuropharmacology

Fact Checked By

Marcus Thorne, MS

Biomedical Data & FDA Label Verification

Medically Reviewed By

Dr. Arthur Campbell, MD

Board-Certified Psychiatrist (ABPN)