What is a Generic Drug?
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.
Generess FE (Norethindrone)
Prescription Required
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Product Details
Description
Generess FE is an oral birth control that your doctor may prescribe for the prevention of pregnancy.
Generess FE is also safe to use in women who are breastfeeding because it does not contain an estrogen analogue.
Fact Table
Formula
C20H26O2
License
US FDA
Bioavailability
47-73%
Legal status
US: RX Only
Chemical Name
Norethisterone
Elimination half-life
5.2–12.8 hours
Dosage (Strength)
0.8mg
Pregnancy
-
Brands
Generess FE
Protein binding
97%
PubChem CID
6230
MedlinePlus
a604034
ChEBI
7627
ATC code
G03AC01
DrugBank
DB00717
KEGG
D00182
Routes of administration
By mouth, intramuscular injection
Directions
This drug and all forms of birth control should be taken exactly as prescribed by the doctor. If you miss a dose, do not double up. Call your pharmacist for advice.
Ingredients
The active ingredient in Generess FE is norethindrone. It is a synthetic progesterone that works by preventing ovulation.
Interactions
There are several possible drug interactions with Norethindrone and other medications. Tell your doctor and pharmacist if you are taking any of the following:
- Abametapir
- Aprepitant
- Asunaprevir
- Atazanavir
- Brigatinib
- Carfilzomib
- Cladribine
- Cobicistat
- Colesevelam
- Efavirenz
- Elagolix
- Encorafenib
- Exenatide
- Felbamate
- Fexinidazole
- Fosaprepitant
- Fusidic Acid
- Griseofulvin
- Ivosidenib
- Ixazomib
- Lixisenatide
- MiFEPRIStone
- Mobocertinib
- Mycophenolate
- Octreotide
- OXcarbazepine
- Perampanel
- Pexidartinib
- Pitolisant
- Protease Inhibitors
- Retinoic Acid Derivatives
- Sugammadex
- Tazemetostat
- Tetrahydrocannabinol and Cannabidiol
- Topiramate
- Tranexamic Acid
- Ulipristal
Cautions
This drug has not been tested in women with a BMI greater than 35 and should be used with caution as it may be less effective.
You should not smoke tobacco products while taking this drug. It can increase the risk of clotting disorders in some people.
Side Effects
Common adverse reactions may include:
- Abdominal pain
- Acne vulgaris
- Alopecia
- Amenorrhea
- Anaphylaxis
- Arm pain
- Breakthrough bleeding
- Breast tenderness
- Cerebral embolism
- Cerebral thrombosis
- Deep vein thrombosis
- Depression
- Dizziness
- Edema
- Emotional lability
- Fatigue
- Genital discharge
- Headache
- Hepatitis
- Hypersensitivity
- Insomnia
- Leg pain
- Migraine
- Nausea
- Nervousness
- Optic neuritis
- Pulmonary embolism
- Retinal thrombosis
- Skin rash
- Spotting
- Vomiting
- Weight gain
Talk with your doctor if you experience any of the above side effects.
References
Generess FE (Norethindrone). Irvine, CA: Allergan USA, Inc; 2017.
IMPORTANT NOTE: The above information is intended to increase awareness of health information and does not suggest treatment or diagnosis. This information is not a substitute for individual medical attention and should not be construed to indicate that use of the drug is safe, appropriate, or effective for you. See your health care professional for medical advice and treatment.Product Code : 13582
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