Sildenafil Citrate (Viagra)
Furchgott, Ferid Murad, and Louis Ignarro won the Nobel Prize in Physiology or Medicine in
- The usual dose of Fildena 150 mg should not be exceeded.
- Common side effects include headache, flushing, and dizziness.
- Fildena 150 mg should not be taken with nitrate drugs.
- Consult a doctor if you experience prolonged erections.
- Keep Fildena away from children and store in a cool, dry place.
1998 for their independent study of the metabolic pathway of nitric oxide in smooth muscle vasodilation.
- The high dose means a higher concentration of the drug is in your system.
- This increases both efficacy and the potential for more pronounced side effects.
- It is a treatment for the symptom (ED) and not the root cause of the problem.
- The medication can help restore sexual function and improve self-esteem.
- It is widely discussed in medical forums and patient support groups online.
- The manufacturer follows strict quality control standards during production.
- Do not use if the seal on the packaging is broken or the tablets look damaged.
The molecular mechanism of smooth muscle relaxation involves
| Treatment Type | Description | Pros |
|---|---|---|
| Other PDE5 inhibitors | Tadalafil, Vardenafil, Avanafil | Longer duration, different onset times |
| Lifestyle Changes | Exercise, diet, quitting smoking | Can improve overall health and ED |
| Psychological Therapy | Counseling for psychological causes | Address underlying mental health issues |
| Vacuum Erection Devices | Mechanical devices to induce erection | Non-drug option |
the enzyme CGMP-dependent protein kinase, also known as PKG.
| Question | Answer | Notes |
|---|---|---|
| Is Fildena 150 mg safe? | Safe when used as prescribed, consult a doctor | Self-medication not advised |
| Can I take Fildena daily? | No, typically once per 24 hours | Follow medical advice |
| Are there any dietary restrictions? | Avoid heavy fatty foods around dosing | Affects absorption |
| How soon does it work? | Usually within 30-60 minutes | Depends on individual |
This kinase is activated by cGMP and it phosphorylates multiple targets in the smooth
- The high dosage is intended for those for whom maximum inhibition of PDE5 is needed.
- It can interact with HIV protease inhibitors, requiring significant dose reduction.
- The medication is a lifesaver for many relationships affected by erectile dysfunction.
- Its effects are purely physical and do not alter mental state or consciousness.
- The pill is small and easy to carry discreetly for use when needed.
- It is not recommended for patients with unstable angina or uncontrolled arrhythmias.
- Always dispose of unused or expired medication properly at a pharmacy take-back site.
muscle cells, namely myosin light chain phosphatase, RhoA, IP3 receptor, phospholipase C, and others.
Brand names
The primary indication of sildenafil is treatment of erectile dysfunction (inability to sustain a satisfactory erection to complete sexual intercourse). Its use is now one of the standard treatments for erectile dysfunction, including for males with diabetes mellitus. Tentative evidence suggests that sildenafil may help males who experience antidepressant-induced erectile dysfunction. While sildenafil improves some markers of disease in people with pulmonary arterial hypertension, it does not appear to affect the risk of death or serious side effects. Sildenafil and other PDE5 inhibitors are used off-label to alleviate vasospasm and treat severe ischemia and ulcers in fingers and toes for people with secondary Raynaud's phenomenon;[9][21] these drugs have moderate efficacy for reducing the frequency and duration of vasospastic episodes.
How is sildenafil supplied (dosage forms)?
[9] As of 2016,[update] their role more generally in Raynaud's was not clear. Sildenafil has shown some potential for improving exercise performance at high altitudes. However, its overall efficacy is not clear. Sildenafil has been studied for high-altitude pulmonary edema (HAPE), but its use is currently not recommended for that indication. In clinical trials, the most common adverse effects of sildenafil use included headache, flushing, indigestion, nasal congestion, and impaired vision, including photophobia and blurred vision. [50] Overall, this results in a decrease in intracellular calcium and
| Product | Dosage | Quantity + Bonus | Price | |
|---|---|---|---|---|
| Cialis Generic | 40mg | 30 + 4 Pills | 74.97€ 71.40€ | |
| Kamagra Soft Tabs | 100 mg | 60 + 4 Pills | 180.59€ 171.99€ | |
| Priligy Generic Dapoxetine | 60mg | 180 + 10 Pills | 494.76€ 471.20€ | |
| Viagra Original | 100mg | 92 + 4 Pills | 362.88€ 345.60€ | |
| Kamagra Gold | 100 mg | 60 + 4 Pills | 201.34€ 191.75€ | |
| Cialis Generic | 2.5mg | 20 Pills | 40.73€ 38.79€ | |
| Cialis Soft Tabs | 20mg | 20 + 2 Pills | 66.98€ 63.79€ | |
| Viagra Professional | 100mg | 60 + 2 Pills | 146.74€ 139.75€ | |
| Cialis Generic | 2.5mg | 30 + 4 Pills | 51.95€ 49.48€ | |
| Levitra Soft Tabs | 20mg | 90 + 6 Pills | 241.31€ 229.82€ |
desensitizing proteins to the effects of calcium, engendering smooth muscle relaxation.
Frequently Asked Questions (FAQ)
[8] Rare but serious side effects include vision problems, hearing loss, and prolonged erection (priapism) that can lead to damage to the penis. [8] Sildenafil should not be taken by people on nitric oxide donors such as nitroglycerin, as this may result in a serious drop in blood pressure. Sildenafil acts by blocking phosphodiesterase 5 (PDE5), an enzyme that promotes breakdown of cGMP, which regulates blood flow in the penis. [8] It requires sexual arousal to work, and does not by itself cause or increase sexual arousal. [8] It also results in dilation of the blood vessels in the lungs.
Available Options
Pfizer originally discovered the medication in 1989 while looking for a treatment for angina. [11] It was approved for medical use in the United States and in the European Union in 1998. [5][8][11][12] In 2023, it was the 151st most commonly prescribed medication in the United States, with more than 3 million prescriptions. [13][14] It is available as a generic medication. [15][16] In the United Kingdom, it is available as a pharmacy medicine. The molecular structure of sildenafil is similar to that of cGMP and acts as a competitive binding
| Age Group | Common Users | Notes |
|---|---|---|
| 30-50 years | Most common users of Fildena 150 mg | Generally healthy men experiencing ED |
| 50-70 years | Increased prevalence of ED | More likely to have comorbidities |
| Under 30 years | Less common, occasional cases | Usually related to psychological factors |
| 70+ years | Use with caution, medical supervision | Age-related health considerations |
agent of PDE5 in the corpus cavernosum, resulting in more cGMP and increased penile response to sexual stimulation.
Save up to 90% on your medicine bills
Unprescribed recreational use of sildenafil and other PDE5 inhibitors is noted as particularly high among users of illegal drugs. [36] Sildenafil is sometimes used to counteract the effects of other substances, often illicit. [33] Some users mix it with methylenedioxymethamphetamine (MDMA, ecstasy), other stimulants, or opiates in an attempt to compensate for the common side effect of erectile dysfunction, a combination known as "sextasy", "rockin' and rollin'", "hammerheading", or "trail mix". [33] Mixing it with amyl nitrite, another vasodilator, is particularly dangerous and potentially fatal. The 2007 Ig Nobel Prize in aviation went to Patricia V.
Kamagra Oral Jelly
Agostino, Santiago A. Plano, and Diego A. Golombek of Universidad Nacional de Quilmes, Argentina, for their discovery that sildenafil helps treat jet lag recovery in hamsters. Professional athletes have been documented using sildenafil, believing the opening of their blood vessels will enrich their muscles. In turn, they believe it will enhance their performances. [49][51] Without sexual stimulation, and therefore lack of activation
Can we take 2 tablets of Fildena?
Acetildenafil and other synthetic structural analogs of sildenafil which are PDE5 inhibitors have been found as adulterants in a number of "herbal" aphrodisiac products sold over-the-counter. [41] These analogs have not undergone any of the rigorous testing that drugs like sildenafil have passed, and thus have unknown side-effect profiles. [42] Some attempts have been made to ban these drugs, but progress has been slow so far, as, even in those jurisdictions that have laws targeting designer drugs, the laws are drafted to ban analogs of illegal drugs of abuse, rather than analogs of prescription medicines. However, at least one court case has resulted in a product being taken off the market. The US Food and Drug Administration (FDA) has banned numerous products claiming to be Eurycoma longifolia that, in fact, contain only analogs of sildenafil.
Regulated, Reviewed & Verified
[44][45][46] Sellers of such fake herbals typically respond by just changing the names of their products. Sildenafil and/or N-desmethylsildenafil, its major active metabolite, may be quantified in plasma, serum, or whole blood to assess pharmacokinetic status in those receiving the drug therapeutically, to confirm the diagnosis in potential poisoning victims, or to assist in the forensic investigation in a case of fatal overdose. Nitric oxide (NO) in the corpus cavernosum of the penis binds to guanylate cyclase receptors, which results in increased levels of cGMP, leading to smooth muscle relaxation (vasodilation) of the intimal cushions of the helicine arteries. This smooth muscle relaxation leads to vasodilation and increased inflow of blood into the spongy tissue of the penis, causing an erection. [49] Robert F. of the NO/cGMP system, sildenafil should not cause an erection. Other drugs that operate by the same mechanism include tadalafil (Cialis) and vardenafil (Levitra).
- Fildena 150 mg is a cost-effective solution for men requiring a high dose of Sildenafil.
- The tablet is designed for ease of use and rapid disintegration in the stomach.
- It is important to avoid strenuous physical activity immediately after taking it.
- The medication's success rate is high, but individual responses can differ.
- It can be part of a long-term management plan for chronic erectile dysfunction.
- Keep a record of when you take the pill to avoid accidental double-dosing.
- Consult a doctor if you do not achieve the desired results after several attempts.
Sildenafil is broken down in the liver by hepatic metabolism using cytochrome p450
Side Effects
[4] Some sildenafil users have complained of seeing everything tinted blue (cyanopsia). [24] This cyanopsia can be explained because sildenafil, while selective for PDE5, does have some affinity for PDE6, which is the phosphodiesterase found in the retina. Patients thus taking the drug may experience colorvision abnormalities. Some complained of blurriness and loss of peripheral vision. In July 2005, the US Food and Drug Administration (FDA) updated labeling for tadalafil (Cialis), vardenafil (Levitra), and sildenafil (Viagra) to reflect a small number of post-marketing reports of sudden vision loss, while acknowledging that "...it is not possible to determine whether these oral medicines for erectile dysfunction were the cause of the loss of eyesight or whether the problem is related to other factors such as high blood pressure or diabetes, or to a combination of these problems.
What are the most common side effects of sildenafil?
"[25] A careful review of pooled data from clinical trials containing well documented information about the dose and duration of exposure to the drug for a large number of patients, yields no evidence for an increased risk of non-arteritic anterior ischemic optic neuropathy or other adverse ocular events associated with PDE5 inhibitor use. Rare but serious adverse effects found through postmarketing surveillance include prolonged erections, severe low blood pressure, myocardial infarction (heart attack), ventricular arrhythmias, stroke, increased intraocular pressure, and sudden hearing loss. [4] In October 2007, the FDA announced that the labeling for all PDE5 inhibitors, including sildenafil, required a more prominent warning of the potential risk of sudden hearing loss. Care should be exercised by people who are also taking protease inhibitors for the treatment of HIV infection. Protease inhibitors inhibit the metabolism of sildenafil, effectively multiplying the plasma levels of sildenafil, increasing the incidence and severity of side effects. enzymes, mainly CYP450 3A4 (major route), but also by CYP2C9 (minor route) hepatic isoenzymes.
Detection in biological fluids
Those using protease inhibitors are recommended to limit their use of sildenafil to no more than one 25 mg dose every 48 hours. [4] Other drugs that interfere with the metabolism of sildenafil include erythromycin and cimetidine, both of which can also lead to prolonged plasma half-life levels. The use of sildenafil and an α1 blocker (typically prescribed for hypertension or for urologic conditions, such as benign prostatic hypertrophy) at the same time may lead to low blood pressure, but this effect does not occur if they are taken at least 4 hours apart. Concomitant use of nitric oxide donors, organic nitrites and nitrates,[30] such as: nitroglycerinisosorbide mononitrateisosorbide dinitratesodium nitroprussidealkyl nitrites (commonly known as "poppers") Concomitant use of soluble guanylyl cyclase stimulators, such as riociguat Sildenafil should not be used if sexual activity is inadvisable due to underlying cardiovascular risk factors. Sildenafil's popularity with young adults has increased over the years.
How should I store sildenafil?
[32] Sildenafil's brand name, Viagra, is widely recognized in popular culture, and the drug's association with treating erectile dysfunction has led to its recreational use. [33] The reasons behind such use include the belief that the drug increases libido, improves sexual performance,[33] or permanently increases penis size. [34] Studies on the effects of sildenafil when used recreationally are limited, but suggest it has little effect when used by those who do not have erectile dysfunction. In one study, a 25 mg dose was shown to cause no significant change in erectile quality, but did reduce the postejaculatory refractory time. [35] This study also noted a significant placebo effect in cheapest ed pills the control group.