Sildenafil citrate raw powder: How long does sildenafil citrate(viagra) last?

Sildenafil citrate raw powder: How long does sildenafil citrate(viagra) last?

What is sildenafil?

Sildenafil is a prescription drug. It comes in the form of a tablet and suspension (liquid). Both are taken by mouth. This drug is also available in an intravenous (IV) form, which is only given by a doctor.
Sildenafil is available as a brand-name drug called Revatio. It’s also available as a generic drug. Generic drugs usually cost less. In some cases, they may not be available in every strength or form as the brand-name version. Talk to your doctor to see if the generic version will work for you.

How does sildenafil citrate works？

This drug belongs to a class of drugs called phosphodiesterase type 5 (PDE5) inhibitors. A class of drugs is a group of medications that work in a similar way. These drugs are often used to treat similar conditions.
This drug works by relaxing the muscles and opening up the blood vessels in your lungs. This decreases the blood pressure in your lungs.

How long does sildenafil citrate(viagra) last?

The length of time Viagra lasts for will also vary from person to person, but it has been known to work for up to 5 hours at a time, when used alongside sexual stimulation. Most men will find, however, that the effects of the pill will start to wear off 2-3 hours after first taking it.
There are certain factors that will contribute to how long Viagra will last for in your individual situation, and you should always discuss your full medical history and details of any medicines you are currently taking before starting a course of treatment with Viagra.

What is the dosage for sildenafil?

1. The usual recommended dose is 25 to 100 mg 1 hour before sexual activity.
2. The maximum dose is 100 mg daily.
3. The elderly (over 65 years of age) should start at 25 mg before sexual activity.
4. Sildenafil is rapidly absorbed. Maximum observed plasma concentrations are reached within 30 to 120 minutes (median 60 minutes) of oral dosing in the fasted state. When sildenafil is taken with a high fat meal, the rate of absorption is reduced, with an average delay in the time to maximal concentration of 1 hour.

What is side effects of sildenafil citrate?

Side effects

1. headaches
2. stomach pain
3. facial flushing
4. congestion
5. nausea or diarrhea
6. color blindness
7. blurred vision

Interactions and warnings
Interactions with Viagra do occur, and it is important for people to be aware of them before choosing a medication for ED. Any drugs for pulmonary hypertension may also interact with Viagra, causing blood pressure to drop to unsafe levels.
A recent study in JAMA Internal Medicine has suggested that Viagra could increase the risk of skin cancer. The study found that 3.7 percent of skin cancer cases in men who used the drug sildenafil might have been prevented by not taking it.

Summary

Sildenafil citrate(Viagra) is a medication prescribed for the treatment of impotence (erectile dysfunction, ED) caused by medical or psychological conditions. Works,dosage or Side effects, drug interactions, warnings and precautions, and patient safety information should be reviewed prior to taking any medication.