Finasteride Uses, Side Effects — Warnings
- 1 Finasteride
- 2 What is finasteride?
- 3 Important Information
- 4 Before taking this medicine
- 5 How should I take finasteride?
- 6 What happens if I miss a dose?
- 7 What happens if I overdose?
- 8 What should I avoid while taking finasteride?
- 9 Finasteride side effects
- 10 Finasteride dosing information
- 11 What other drugs will affect finasteride?
- 12 Further information
- 13 Alfatrin — how is this drug used?
- 14 Drug Safety Communication: Hydroxychloroquine or Chloroquine for COVID-19 — FDA Cautions Against Use Outside of the Hospital Setting or a Clinical Trial Due to Risk of Heart Rhythm Problems
- 15 AHA News: When Can We Safely Get Back to Work and School?
- 16 Coronavirus Is Spreading Fast in Areas of U.S. That May Reopen Soon: Study
- 17 FDA Approves Emerphed (ephedrine sulfate) Ready-to-Use Injection for Hypotension During Anesthesia
- 18 FDA Approves Trodelvy (sacituzumab govitecan-hziy) for Previously-Treated Metastatic Triple Negative Breast Cancer
- 19 FDA Warns Companies Illegally Selling CBD Products to Treat Medical Conditions, Opioid Addiction
- 20 AHA News: Firefighter In Need of a New Heart Got By With a Little Help From His Friends
- 21 FDA Warns Against COVID-19 Treatment With Drugs Touted by Trump
- 22 Medical Care for COVID-19 Could Cost U.S. Hundreds of Billions: Study
- 23 A Surprising Way to Make a Sweet Treat Taste Even Sweeter
- 24 Vitamin C: Time to take this supplement seriously?
- 25 Medical Advances Amidst COVID-19 Chaos
- 26 Coronavirus – When Do We Hit Red for Panic?
- 27 Flu drug used in Japan shows promise in treating COVID-19
- 28 Coronavirus science and news
- 29 Cocaine
- 30 How is cocaine used?
Generic Name: finasteride (fin AS ter ide)
Brand Name: Propecia, Proscar
Medically reviewed by Drugs.com on Jul 20, 2018 – Written by Cerner Multum
What is finasteride?
Finasteride prevents the conversion of testosterone to dihydrotestosterone (DHT) in the body. DHT is involved in the development of benign prostatic hyperplasia (BPH).
Finasteride (Propecia) is used to treat male pattern hair loss in men. Finasteride (Proscar) is used to treat symptoms of benign prostatic hyperplasia (BPH) in men with an enlarged prostate.
finasteride is for use in men only.
Finasteride may also be used for purposes not listed in this medication guide.
Finasteride should never be taken by a woman or a child.
Finasteride can cause birth defects if a woman is exposed to it during pregnancy. Finasteride tablets should not be handled by a woman who is pregnant or may become pregnant.
Before taking this medicine
You should not use finasteride if you are allergic to it.
finasteride should never be taken by a woman or a child. Finasteride can be absorbed through the skin, and women or children should not be permitted to handle finasteride tablets.
Using finasteride may increase your risk of developing prostate cancer. Talk with your doctor if you have concerns about this risk.
Tell your doctor if you have ever had:
a bladder muscle disorder;
stricture of your urethra;
urination problems; or
an allergic reaction to a similar medicine called dutasteride (Avodart).
Although finasteride is not for use by women, this medicine can cause birth defects if a woman is exposed to it during pregnancy. Finasteride tablets should not be handled by a woman who is pregnant or who may become pregnant.
If a woman accidentally comes into contact with a broken or crushed tablet, wash the area with soap and water right away.
How should I take finasteride?
Your doctor will perform blood tests to make sure you do not have conditions that would prevent you from safely using finasteride.
Follow all directions on your prescription label and read all medication guides or instruction sheets. Use the medicine exactly as directed.
Take this medicine with a full glass of water.
Take the medicine at the same time each day, with or without food.
Use finasteride regularly to get the most benefit.
It may take up to 3 months or longer before you receive the full benefit of taking finasteride. Your doctor will determine how long to treat you with this medicine. Keep using the medication as directed.
You will need frequent medical tests. Your doctor will also test your prostate specific antigen (PSA) to check for prostate cancer.
Store at room temperature away from moisture, heat, and light. Keep the bottle tightly closed when not in use.
What happens if I miss a dose?
Take the medicine as soon as you can, but skip the missed dose if it is almost time for your next dose. Do not take two doses at one time.
Get your prescription refilled before you run out of medicine completely.
What happens if I overdose?
Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.
What should I avoid while taking finasteride?
Avoid getting up too fast from a sitting or lying position, or you may feel dizzy.
Finasteride side effects
Get emergency medical help if you have signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.
Call your doctor at once if you notice any signs of male breast cancer, such as:
breast pain or tenderness;
nipple discharge; or
any other breast changes.
Common side effects may include:
loss of interest in sex;
trouble having an orgasm; or
The sexual side effects of finasteride may continue after you stop taking finasteride. Talk to your doctor if you have concerns about these side effects.
This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
Finasteride dosing information
Usual Adult Dose for Benign Prostatic Hyperplasia:
5 mg orally once a day
-Dosing is the same both in monotherapy and in combination therapy.
Usual Adult Dose for Androgenetic Alopecia:
1 mg orally once a day
For the treatment of male pattern hair loss (androgenetic alopecia) in men only. (Safety and efficacy have been demonstrated in men between 18 to 41 years of age with mild to moderate hair loss of the vertex and anterior mid scalp area):
-Daily use for 3 months or more is necessary before benefit is observed. Continued use is recommended to sustain benefit.
-Withdrawal of treatment leads to reversal of effect within 12 months.
Use: For the treatment of male pattern hair loss (androgenetic alopecia) in men only. (Safety and efficacy have been demonstrated in men between 18 to 41 years of age with mild to moderate hair loss of the vertex and anterior mid scalp area).
What other drugs will affect finasteride?
Other drugs may affect finasteride, including prescription and over-the-counter medicines, vitamins, and herbal products. Tell your doctor about all your current medicines and any medicine you start or stop using.
Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use this medication only for the indication prescribed.
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.
Copyright 1996-2018 Cerner Multum, Inc. Version: 9.01.
Alfatrin — how is this drug used?
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The antiviral drug, called Favipiravir or Avigan, showed positive outcomes in clinical trials involving 340 individuals in Wuhan and Shenzhen, said Zhang Xinmin, of China’s science and technology ministry, The Guardian reported.
«It has a high degree of safety and is clearly effective in treatment,» Zhang said Tuesday (March 17), The Guardian reported.
Developed by Fujifilm Toyama Chemical, the antiviral drug is being manufactured by Zhejiang Hisun Pharmaceutical for treating influenza viruses. Last month, the drug reportedly received approval as an experimental treatment for COVID-19 infections, Pharmaceutical Technology reported.
Patients in Shenzhen who had tested positive for COVID-19 and who were given the drug got a negative virus test back four days later, as a median (half showed a negative test earlier and half later than four days). That was compared with a negative test about 11 days later, as a median, for patients not on the drug, according to news reports. In that same trial, lung conditions (as shown in X-rays) improved in about 91% of patients taking Favipiravir, compared with just 62% who weren’t taking the antiviral drug.
In the Wuhan trial, the drug also seemed to shorten the duration of a patient’s fever from an average of 4.2 days to 2.5 days, according to Pharmaceutical Technology.
The drug is specifically made to treat RNA viruses like SARS-CoV-2; these are viruses whose main genetic material is RNA, rather than DNA. The drug stops some viruses from replicating by crippling the enzyme (a substance that gets chemical reactions going) called RNA polymerase, which builds RNA. Without that enzyme intact, the virus can’t duplicate its genetic material efficiently once inside a host cell, according to an article describing the drug that was published in 2017 in the journal Proceedings of the Japan Academy, Ser. B, Physical and Biological Sciences.
However, the drug seems less effective in patients with severe symptoms. «We’ve given Avigan to 70 to 80 people, but it doesn’t seem to work that well when the virus has already multiplied,» a source from the Japanese Health Ministry told the Mainichi Shimbun newspaper, according to The Guardian.
Doctors are using the same drug in Japan to treat coronavirus patients with mild to moderate symptoms, The Guardian reported. In addition, results from these trials have not been published in a peer-reviewed scientific journal and seem to be just preliminary findings.
To date, there is no approved or known drug to treat SARS-CoV-2. However, antiviral drugs developed to treat other illnesses are being tested for their use in treating the coronavirus. For instance, Remdesivir was developed to treat Ebola but it has shown promise in treating monkeys infected with another coronavirus, the Middle East respiratory syndrome (MERS); that drug is currently being tested in China and the U.S., according to NBC News.
In addition, clinical trials have begun to test an experimental coronavirus vaccine in humans. Over the next six weeks, about 45 participants are expected to enroll in the vaccine trial in Seattle, which is testing the safety of the vaccine and its ability to trigger the body’s immune response to fight off the coronavirus. If all goes well in that trial and the following two clinical trial phases, the vaccine could be ready for public use in about 12 to 18 months, Dr. Anthony Fauci, director of the National Institute of Allergy and Infectious Diseases, said March 12.
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How is cocaine used?
Users primarily administer cocaine orally, intranasally, intravenously, or by inhalation. When people snort the drug (intranasal use), they inhale cocaine powder through the nostrils, where it is absorbed into the bloodstream through the nasal tissues. Users also may rub the drug onto their gums (oral use). Dissolving cocaine in water and injecting it (intravenous use) releases the drug directly into the bloodstream and heightens the intensity of its effects. When people smoke cocaine (inhalation), they inhale its vapor or smoke into the lungs, where absorption into the bloodstream is almost as rapid as by injection. This fast euphoric effect is one of the reasons that crack became enormously popular in the mid-1980s. 2
Cocaine use ranges from occasional to repeated or compulsive use, with a variety of patterns between these extremes. Any route of administration can potentially lead to absorption of toxic amounts of cocaine, causing heart attacks, strokes, or seizures—all of which can result in sudden death. 2,7