A generic drug is a copy of the brand-name drug with the same dosage, safety, strength, quality, consumption method, performance, and intended use. Before generics become available on the market, the generic company must prove it has the same active ingredients as the brand-name drug and works in the same way and in the same amount of time in the body.
The only differences between generics and their brand-name counterparts is that generics are less expensive and may look slightly different (eg. different shape or color), as trademarks laws prevent a generic from looking exactly like the brand-name drug.
Generics are less expensive because generic manufacturers don't have to invest large sums of money to develop a drug. When the brand-name patent expires, generic companies can manufacture a copy of the brand-name and sell it at a substantial discount.
This medicine is an alpha blocker used to treat high blood pressure caused by pheochromocytoma. It may also be used to treat other conditions as determined by your doctor.
Follow the directions for using this medicine provided by your doctor. This medicine may be taken on an empty stomach or with food. STORE THIS MEDICINE at 77 degrees F (25 degrees C), in a tightly closed container, away from heat, moisture, and light. Brief storage at temperatures between 59 and 86 degrees F ( 15 and 30 degrees C) is permitted. Take this medicine regularly to receive the most benefit from it. IF YOU MISS A DOSE OF THIS MEDICINE, take it as soon as possible. If it is almost time for your next dose, skip the missed dose and go back to your regular dosing schedule. Do not take 2 doses at once.
SIDE EFFECTS that may occur while taking this medicine include dizziness, drowsiness, nasal congestion, stomach upset, or tiredness. If they continue or are bothersome, check with your doctor. CONTACT YOUR DOCTOR IMMEDIATELY if you experience change in sexual function; fainting; fast heartbeat; new or unusual lumps or growths; pinpoint pupils; severe dizziness or lightheadedness upon sitting or standing; or vomiting. An allergic reaction to this medicine is unlikely, but seek immediate medical attention if it occurs. Symptoms of an allergic reaction include rash; hives; difficulty breathing; tightness in the chest; or swelling of the mouth, face, lips, or tongue. This is not a complete list of all side effects that may occur. If you have questions about side effects, contact your healthcare provider. Call your doctor for medical advice about side effects.