Viagra...What You Need to Know
The Little Blue Pill Must Ve Used With Care.
Erectile dysfunction or impotence as it is often called, affects men of all ages. There was a time when treatments were few and success of treatment was rare. But recently a new treatment was brought to the market that has proven to be very effective...Viagra.
Viagra (sildenafil) belongs to a group of medicines that delay the enzymes called phosphodiesterase from working too quickly. By controlling phosphodiesterase, sildenafil helps to maintain an erection that is produced when the penis is physically stimulated. We have all heard of the popularity of Viagra. In fact, men of all ages are finding a new found sexual youth because of the little blue pill. But like any prescription medication, Viagra is not without its pitfalls and problems, especially when used by an HIV infected man.
Let's take a closer look at Viagra.
How is Viagra Prescribed?
Viagra comes in tablet form ("little blue pills") in dosages of 25mg, 50mg and 100mg.
- For men up to 65 years of age, Viagra 50mg is prescribed to be taken once a day, 30 minutes to 4 hours before intercourse. In situations where 50mg isn't effective, your doctor can prescribe 100mg to be taken once daily 30 minutes to 4 hours before intercourse.
- For men older than 65 years of age, Viagra 25mg is prescribed to be taken 30 minutes to 4 hours before intercourse. In some circumstances, men older then 65 may have their doses increased.
Caution: Under no circumstances should men increase their Viagra doses without first consulting their physician.
Before You Take Viagra
Everyone wants to take Viagra...the little blue miracle. But what things do you need to know before taking your first dose?
Women
Viagra is neither approved or recommended for use in women. Therefore, women should not take Viagra under any circumstances.
Older Men
Men older than 65 are very sensitive to the effects of Viagra. It's for this reason that men over 65 are started on a smaller dose and increased if indicated and tolerated.
Other Medicines
Certain drugs can alter the way Viagra works in the body...and vice versa. For this reason, some drugs are not recommended for use while taking Viagra. In fact, some drugs can interact in such a way that they could cause harm or severe illness. The following is a list of drugs your doctor needs to be made aware of before taking Viagra.
- Protease Inhibitors (Crixivan, Invirase, Norvir, Viracept, Fortovase, Agenerase, Lopinavir): Increases the amount of Viagra in your blood and prolongs the action of Viagra.
Men on Protease Inhibitors should start with a dose of 25mg and at most use 50mg.
- Cimetidine (e.g. Tagamet)
- Erythromycin (e.g. E.E.S. or Ery-Tab)
- Itraconazole (e.g. Sporanox)
- Ketaconazole (e.g. Nizoral)
- Mibefradil (e.g. Posicor): These medicines may increase the unwanted effects of sildenafil, unless lower starting doses of sildenafil are used.
- Nitrates, such as nitroglycerin (e.g. Nitrostat or Transderm-Nitro): Sildenafil increases the lowering of blood pressure by nitrates too much and their use together is not recommended.
What About Other Medical Conditions Certain medical conditions make taking Viagra a little more difficult. In fact, certain conditions prohibit the use of Viagra all together. Here are some medical conditions your doctor must know about before you start taking Viagra.
- HIV/AIDS: Certain HIV drugs may interact with Viagra (see above)
- Arrhythmias (irregular heartbeat)
- Coronary artery disease
- Heart attack or a history of (within the last 6 months)
- High blood pressure or Low blood pressure
- Stroke or a history of (within the last 6 months)！Chance of problems occurring may be increased
- Abnormal penis, including curved penis and birth defects of the penis！Chance of problems occurring may be increased
- Bleeding problems
- Retinitis pigmentosa！Chance of problems occurring may be increased. It is not known if the medicine is safe for use in these patients
- Conditions causing thickened blood or slower blood flow, including leukemia, multiple myeloma (tumors of the bone marrow, or polycythemia, sickle cell disease, and thrombocythemia (blood problems) or
- Priapism or a history of！Although sildenafil does not cause priapism (erection lasting longer than 6 hours), patients with these conditions have an increased risk of priapism and it could occur while using sildenafil
- Heart or blood disease！Sexual activity increases the heart rate and blood flow and can increase the chance of problems occurring for some patients who use any type of medicine, including sildenafil, that increases sexual ability
- Kidney problems (severe)
- Liver problems (severe)！Chance of problems occurring may be increased. Lower starting doses may be used and doses increased as needed and as tolerated.
Side Effects
Medications have desired effects when taken correctly. But even when a drug is taken as prescribed, side effects can occur. Viagra is no exception. Here are some common and not so common side effects you should be aware of before taking the drug.
Common
- flushing
- headache
- nasal congestion
- stomach discomfort following meals
Less Common
- abnormal vision including blurred vision, seeing shades of colors differently than before, or sensitivity to light
- bladder pain
- cloudy or bloody urine
- dizziness
- increased frequency of urination
- pain on urination
- diarrhea
Rare
- bleeding of the eye
- convulsions (seizures)
- decreased or double vision or other changes in vision
- prolonged, painful, or inappropriate erection of penis
- redness, burning, or swelling of the eye
- anxiety
When used properly and appropriately, Viagra is helpful in men with erectile dysfunction.
By taking the medicine as prescribed and by knowing what adverse effects to look for, Viagra can be safe and effective. Before taking Viagra, you must consult your physician to see if it is right for you.
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