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Sildenafil citrate
Alias: Viagra
CAS No: 139755-83-2
Purity: 99%
Solubility: Slightly soluble in water, methanol; very slightly soluble in ethanol
Sildenafil is an oral tablet. In most cases, it should be taken about an hour before sexual activity, but it can be taken 30 minutes to 4 hours in advance. Sildenafil has three powerful ingredients: 25 mg, 50 mg and 100 mg.
Take VIAGRA exactly as your doctor tells you to take it. He or she will tell you how much VIAGRA to take and when to take it.
Get into the mood. You will not get an erection just by taking VIAGRA. You must be sexually stimulated for it to work.
Take your time. VIAGRA usually starts to work within 30-60 minutes. You may take it up to 4 hours before sexual activity. So there's no need to rush.
Eat smart before you start. VIAGRA can be taken with or without food. If you take VIAGRA after a high-fat meal (such as a cheeseburger and french fries), it may take a little longer to start working.
Do not take VIAGRA more than once a day. If you accidentally take too much VIAGRA, call your doctor or go to the nearest hospital emergency room right away.
Brand name | Viagra | Cialis | Levitra |
What’s the generic name of this drug? | sildenafil | Tadalafil | vardenafil |
Is a generic version available? | Yes | yes | yes |
What form does it come in? | oral tablet | oral tablet | oral tablet |
What strengths does it come in? | 25 mg, 50 mg, 100 mg | 2.5 mg, 5 mg, 10 mg, 20 mg | 5 mg, 10 mg, 20 mg |
What’s the typical dosage? | 50 mg | 10 mg (when used as needed); 2.5 mg (when used daily) | 10 mg; 5 mg (for men 65 years old and up) |
When do I take it? | 30-60 minutes before sex | 30 minutes before sex | 60 minutes before sex |
How long does it work? | 4 hours | up to 36 hours | 4-5 hours |
How do I store it? | Around room temperature, between 68°F to 77°F (20°C to 25°C) | At 25°C (77°F) | At 25°C (77°F) |
1:How long does it taks to start working?
Normally starts working 30–60 minutes after you take it in oral tablet form. It may last two hours
Viagra doesn’t work on its own. You’ll still need to feel sexually aroused to get an erection. Feeling relaxed and comfortable can also help Viagra take effect sooner.
2:Is there anything I should care about?
Viagra usually lasts a few hours. You usually do n’t get an erection all the time because Viagrais only used to help increase blood flow. If you think Viagrais not fast enough, you can try masturbation or foreplay to stimulate excitement.
If Viagra does not work after 30 minutes, do not take more than the daily dose prescribed by the doctor. This causes an erection, a painful erection that lasts for more than 4 hours. This damages the penile tissue because the blood stored in the penis does not receive any oxygen. If this happens, immediately receive emergency treatment.
3:How long does it take to leave my system?
Viagra usually leaves your system after two or three hours. Depending on your metabolism, Viagra may take 5-6 hours to completely leave your system.
Higher doses will take longer to leave your body. The 25 mg dose may disappear after a few hours, but the 100 mg dose may take nearly 4 times longer to leave your system.
4:The most common side effects of Viagra?
Headache; flushing; upset stomach; abnormal vision, such as changes in color vision
(such as having a blue color tinge) and blurred vision; stuffy or runny nose; back pain; muscle pain; nausea; dizziness; rash.
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