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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.
Normally starts working 30–60 minutes after you take it in oral tablet form. It may last two hours
Sildenafil 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 Sildenafil take effect sooner.
Sildenafil usually lasts a few hours. You usually do n’t get an erection all the time because Sildenafil is only used to help increase blood flow. If you think Sildenafil is not fast enough, you can try masturbation or foreplay to stimulate excitement.
If Sildenafil 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.
Sildenafil usually leaves your system after two or three hours. Depending on your metabolism, Sildenafil 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.
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.
COA:
Items | Standard | Results |
Assay by HPLC: | 98% | 99.37% |
Appearance: | White Powder | Complies |
Odor & taste: | Slight bitter | Complies |
Mesh size: | 100% pass 80mesh | Complies |
Solubility: | Soluble in water | Complies |
Loss on drying: | ≤2.0% | 1.15% |
Heavy metals PPM: | <30ppm | Complies |
Microbiology: Total Plate Count: Yeast & Mold: E.Coli: S. Aureus: Salmonella: |
<1000cfu/g <100cfu/g Negative Negative Negative |
800cfu/g 90cfu/g Complies Complies Complies |
Conclusion: | Conform with USP 32 |
Product | Sildenafil citrate(Viagra) |
HPLC: