Viagra 25mg Film-coated Tablets

Based on efficacy and tolerability, the dose may be increased step-wise to 50 mg up to mg as necessary. Nitric oxide then activates the enzyme guanylate cyclase, which results in increased levels of cyclic guanosine monophosphate cGMPdose viagra, producing smooth muscle relaxation in the corpus cavernosum and allowing inflow of blood. Clinical efficacy and safety Two clinical studies were specifically designed to assess the time window after dosing during which sildenafil could produce an erection in response to sexual stimulation. Therefore sildenafil should be administered to these patients only after careful benefit-risk assessment. Consuming alcohol can also affect sildenafil. Based on effectiveness and toleration, the dose may be increased to a maximum recommended dose of mg or dose to 25 mg, dose viagra. Print this page Add dose My Med List. This site uses cookies. Your cart is empty! As mg is the highest dose available, you should never take more than one tablet at a time or take more than one in 24 hours. Side Effects of Viagra The most common side effects include: Prior to prescribing sildenafil, physicians should carefully consider whether their patients with certain underlying conditions could be adversely affected by such vasodilatory effects, especially in combination with sexual activity. Qualitative and quantitative composition 3. Enter medicine name or company Start typing to retrieve search suggestions. Regulated Service. Therefore sexual stimulation is required in order for sildenafil to produce its intended beneficial pharmacological effects. There are no data on the interaction of viagra and non-specific phosphodiesterase inhibitors such as theophylline or dipyridamole. Patients should be advised that in the event of any sudden visual defect, they should stop taking VIAGRA and consult a physician immediately see viagra 4. Refer to our dose policy for content sources and attributions. The physiological viagra responsible for erection of the penis involves the release of nitric oxide NO in the corpus cavernosum during sexual stimulation. Due to the nitrate component it has the potential to result in a serious interaction with sildenafil. Health Centre Your guide to a healthier lifestyle. These include:

Email Address. Healthcare professionals are asked to report any suspected adverse reactions via the Yellow Card Scheme at www. Prior to prescribing sildenafil, physicians should carefully consider whether their patients with certain underlying conditions could be adversely affected by such vasodilatory effects, especially in combination with sexual activity. For dose information about Viagra contact one of the MedExpress team. Marketing authorisation number viagra 9. Contact Us. Available for Android and iOS devices. Sildenafil is rapidly absorbed. Side effects see below are more likely when taking mg, dose viagra. Most, but not all, of these patients had pre-existing cardiovascular risk factors. To email a medicine you must sign up and log in. Weekly news roundup. Dise rights reserved. Pharmaceutical form 4. Since sildenafil clearance is reduced in patients with hepatic impairment e. Concomitant use of riociguat with PDE5 inhibitors, including viagra, is contraindicated see section 4. Within each frequency grouping, undesirable effects are presented in order of decreasing seriousness. Levitra contains vardenafil and can take about 30 minutes to begin working. In a separate RigiScan study, sildenafil was still able to produce an erection in response to sexual stimulation hours post-dose. Serious cardiovascular events, including myocardial infarction, unstable angina, sudden viagrs death, ventricular arrhythmia, cerebrovascular haemorrhage, transient ischaemic attack, hypertension and hypotension have been reported post-marketing in temporal association with the use of VIAGRA. Finally, dose dosage of Viagra can affect its active life in the body. Erectile Dysfunction.

How Long Does Sildenafil Last?

The doe of PDE5 inhibitors, including sildenafil, with guanylate cyclase stimulators, viagra as riociguat, is contraindicated as it may potentially lead to symptomatic hypotension see section 4. The eose maximum decreases in supine systolic blood pressure following mg dose dosing of sildenafil was 8. Drug Class. Maximum observed plasma concentrations are reached within 30 to viwgra median 60 minutes of oral dosing in the fasted state. By clicking Subscribe, I agree to the Drugs. Viagra a certain point, Viagra will no longer be present in your viaagra or tissue and it will produce no effects on your body. Protein binding is independent of total drug concentrations. Prior to prescribing sildenafil, physicians should carefully consider whether their patients with certain underlying conditions could be adversely affected by such vasodilatory effects, especially in combination with sexual activity. Key points Ddose normally takes half an hour to an hour to work for the…. Email Address. Mechanism of action Sildenafil is an oral therapy for erectile dysfunction. Urologicals; Drugs used in erectile dysfunction. Generic Sildenafil. This means that the active amount of Viagra in your bloodstream will reduce by approximately half with dose four hours. A double-blind, placebo-controlled exercise stress trial evaluated patients with erectile dysfunction and chronic stable angina who regularly received anti-anginal medicinal products except nitrates. Erectile Dysfunction. Nicorandil is a hybrid of potassium channel activator and nitrate. The tablet should be swallowed whole with water. Concomitant use of riociguat with PDE5 inhibitors, including sildenafil, is contraindicated see section 4, dose viagra.

Generic selectors. Hard made easy. Nitric oxide then activates the enzyme guanylate cyclase, which results in increased levels of cyclic guanosine monophosphate cGMPproducing smooth muscle relaxation in the corpus cavernosum and allowing inflow of blood. As dizziness and altered vision were reported in clinical trials with sildenafil, patients should be aware of how they react to VIAGRA, before driving or operating machinery. After viagrra dosing of sildenafil AUC and C max increase in proportion with dose over the recommended dose range mg. Last updated on viagga Exact matches only. The following patient groups were represented: Protein binding is independent of total drug concentrations. Most, but not all, dose viagra, viagra these patients had dose cardiovascular risk factors. If you are suffering from psychological problems it could be best to see a therapist. Sildenafil had no effect on ritonavir pharmacokinetics. This is consistent with ritonavir's marked effects on a broad range of P substrates. Hepatic impairment Since sildenafil clearance is reduced in patients with hepatic dose e. Summary of the safety profile The safety profile of VIAGRA is based on 9, patients in 74 double blind placebo-controlled clinical studies. Sildenafil has no direct relaxant effect on isolated human corpus cavernosum but potently enhances the relaxant effect voagra NO on this tissue. The maximum recommended dosing frequency is once per day. Viagra observed plasma concentrations are reached within 30 to minutes median 60 minutes dose oral dosing in viagra fasted state. Clinical efficacy and safety Two clinical studies were specifically designed to assess the time window after dosing during which sildenafil could produce an erection in response to sexual stimulation. How long does Viagra take to work?

Dose viagra

The safety of sildenafil has not been studied in the following sub-groups of dose and its use is therefore contraindicated: This should be taken in exactly dode same way as smaller dosage tablets — half viafra hour to one hour before having sex and on an empty stomach. Marketing authorisation number s 9. Prior to prescribing sildenafil, physicians should carefully consider whether their patients with certain underlying conditions could be adversely affected by such vasodilatory effects, especially in combination with sexual activity. Can Ddose Factors Affect Sildenafil? Sildenafil may affect the way other medicines work, and other medicines dose affect the way Sildenafil works, causing side effects. To email a medicine you must sign up and log in, dose viagra. In many cases, a single tablet is all it takes to improve blood circulation and help produce a normal, easily sustained erection. The results demonstrated no clinically relevant differences between sildenafil and placebo in time to limiting angina. The half life of sildenafil, which doxe the active ingredient in Viagra, is approximately four hours. Regulated Service. Sildenafil metabolism is principally mediated by the cytochrome P CYP viagra 3A4 viatra route and 2C9 minor route. These include: In healthy volunteers receiving sildenafil mg single doseless than 0. Therefore sildenafil should be administered to these patients only after careful benefit-risk assessment. SmPC Patient Leaflet. Pooling of the following classes of antihypertensive medication; diuretics, beta-blockers, ACE inhibitors, angiotensin II antagonists, antihypertensive medicinal products vasodilator and centrally-actingadrenergic neurone blockers, calcium channel blockers and alpha-adrenoceptor blockers, showed no difference in the side effect profile in patients taking sildenafil viagra to placebo treatment.

Continue typing to refine. Two clinical studies were specifically designed to viagra the time window after dosing during which sildenafil could produce an erection in response to sexual stimulation. The Vigara metabolite is further metabolised, with a dose half life of approximately 4 h. Concomitant use with alpha-blockers Caution is advised when sildenafil is administered to patients taking an alpha-blocker, as the co-administration may lead to symptomatic hypotension in a few susceptible individuals see section 4. The pharmacokinetics of sildenafil in patients with severely impaired hepatic function have not been studied. For most patients, the recommended dose is 50 dose taken, as needed, approximately 1 hour before sexual activity. Based on effectiveness and toleration, the dose viagra be increased to a maximum recommended dose of mg or decreased to 25 mg. They are the views of the author and do not necessarily represent the views of hims, and are for informational purposes only, even if and to the extent that this article features the dose of viagra and medical practitioners. Concomitant administration of sildenafil to patients taking alpha-blocker therapy may lead to symptomatic hypotension in a few susceptible individuals. Side effects see below are more likely when taking mg. Cases of non-arteritic anterior ischaemic optic neuropathy, a dose condition, have been reported spontaneously and in an observational study in connection with the intake of sildenafil and other PDE5 inhibitors see section 4. The corresponding additional reduction in supine diastolic blood pressure was 7 mmHg. Renal and urinary disorders. The following groups were not well represented or excluded from clinical trials: Related Drugs. The half life of sildenafil, which is the viagra ingredient in Viagra, is approximately four hours. Monthly newsletter, dose viagra. Hypersensitivity to the active substance or to any of the excipients vviagra in section 6. In normal healthy male volunteers, there was no evidence of an effect of azithromycin mg daily for 3 days on the AUC, C max viwgra, t maxelimination rate constant, dose viagra, or viagrz half-life of sildenafil or its principal circulating metabolite. However, it will make it easier for most men to develop and sustain an erection after being stimulated, dose viagra. When sildenafil and doxazosin were administered simultaneously to patients stabilized on doxazosin therapy, there were infrequent reports of patients who experienced symptomatic postural hypotension. The physiological mechanism responsible for erection of the penis involves the release of nitric oxide NO in the corpus cavernosum during sexual stimulation. You can take Viagra 25 mg half an hour to an hour before you have sex.

More about Viagra (sildenafil)

Nitric oxide then activates the enzyme guanylate cyclase, which results in increased levels of dose guanosine monophosphate cGMPproducing smooth muscle relaxation in the corpus cavernosum and allowing inflow of blood. Hypersensitivity to the active substance viagra to any of the excipients listed in section 6. Refer to our editorial policy for content sources and attributions. Paediatric population The European Medicines Agency has waived the obligation to submit the results of studies with VIAGRA in all subsets of the paediatric population for the treatment of erectile dysfunction. Like all medications, Viagra has an active life and half life. Vertigo, Tinnitus. Detailed information on this medicinal product is available on the website of the European Medicines Agency http: Prescription only medicine. Skip to Content. Clinical data have shown that co-administration with saquinavir or erythromycin increased plasma levels of sildenafil by about 3 fold [ see Drug Interactions 7. Use dose patients taking other medicinal viagra With the exception of ritonavir for which co-administration with sildenafil is not advised see Section 4. Quite a lot of men also choose this Viagra dosage as the lower dosage means that side effects will be minimal or completely absent. Viagra mg is the most potent dose available. There are no data on the interaction of sildenafil and non-specific phosphodiesterase inhibitors such as theophylline or dipyridamole. Can I combine Viagra with other erectile dysfunction drugs? Concomitant use of riociguat with PDE5 inhibitors, including sildenafil, is contraindicated dose section 4. It is not possible to determine whether these events are related directly to these factors or to other factors. Sildenafil does not protect against sexually transmitted diseases, including HIV. In addition, physicians should advise patients what to do in the event of postural hypotensive symptoms, dose viagra. Dosage Adjustments Due to Drug Interactions Ritonavir The recommended dose for ritonavir-treated patients is 25 mg prior to sexual activity and the viagra maximum dose is 25 mg within a 48 hour period because concomitant administration increased the blood levels of sildenafil by fold [ see Warnings and Precautions 5, dose viagra. In the event of an erection that persists for longer than 4 hours, the patient should seek immediate medical assistance.

Key points

Based on effectiveness and toleration, the dose may be increased to a maximum recommended dose of mg or decreased to 25 mg. Sildenafil has vasodilator properties, resulting in mild and transient decreases in blood pressure see section 5. Sildenafil mg did not affect the steady state pharmacokinetics of the HIV protease inhibitors, saquinavir and ritonavir, both of which are CYP3A4 substrates. Paediatric population The European Medicines Agency has waived the obligation to submit the results of studies with VIAGRA in all subsets of the paediatric population for the treatment of erectile dysfunction. The recommended dose for ritonavir-treated patients is 25 mg prior to sexual activity and the recommended maximum dose is 25 mg within a 48 hour period because concomitant administration increased the blood levels of sildenafil by fold [ see Warnings and Precautions 5. Urologicals; Drugs used in erectile dysfunction. In many cases, a single tablet is all it takes to improve blood circulation and help produce a normal, easily sustained erection. In clinical studies, riociguat has been shown to augment the hypotensive effects of PDE5 inhibitors. See section 4. Other brands: Weight Loss. In healthy male volunteers, sildenafil at steady state 80 mg t. Immune system disorders. Shop Learn Cart Login. Pharmaceutical form 4. Qualitative and quantitative composition 3. There was no effect on sperm motility or morphology after single mg oral doses of sildenafil in healthy volunteers see section 5.

The co-administration of PDE5 inhibitors, including sildenafil, with guanylate cyclase stimulators, such as riociguat, is contraindicated as it may potentially lead to symptomatic hypotension see section 4. They are the views of the author and do not necessarily represent the views of hims, and are for informational purposes only, even if and to the extent that this article features the advice of physicians and medical practitioners. Sildenafil can cause serious side effects. They will be able to determine whether you need to make changes to your lifestyle and overall health, adjust your dosage of Viagra or switch to an alternative ED treatment option. Levitra, on the other hand, has a similar half-life to Viagra. The major circulating metabolite results from N-demethylation of sildenafil. Sildenafil 50 mg did not potentiate the increase in bleeding time caused by acetyl salicylic acid mg. Company contact details Pfizer Limited. Available for Android and iOS devices. Your cart is empty! Reporting suspected adverse reactions after authorisation of the medicinal product is important. The recommended starting dose is 50 mg to be taken about an hour before sexual activity. Monthly newsletter. Urologicals; Drugs used in erectile dysfunction. If you do, you will be at risk of serious side effects. External factors, such as your diet or age, can have a significant effect on how well Viagra works and how long it remains active in your body:. Back to Blog. Can External Factors Affect Sildenafil? Viagra Images. Distribution The mean steady state volume of distribution V d for sildenafil is l, indicating distribution into the tissues. Tachycardia, Palpitations. Pharmacodynamic effects Studies in vitro have shown that sildenafil is selective for PDE5, which is involved in the erection process. One point to note is viagra Viagra will not cause an erection on its own without a source of sexual stimulation. Regulated Service. Cases of non-arteritic anterior ischaemic optic neuropathy, a rare condition, have been reported spontaneously and in an observational study in connection with the intake of dose and other PDE5 inhibitors see section 4. Generic selectors. With viagra exception of ritonavir for which co-administration with sildenafil is not advised see Section 4. Therefore the use of such combinations is not recommended. Concomitant use with alpha-blockers Caution is advised when sildenafil is administered to patients taking an alpha-blocker, as the co-administration may lead to symptomatic hypotension in a few susceptible individuals see section 4. As dizziness and altered vision were dose in clinical trials with sildenafil, patients should be aware of how they react to VIAGRA, before driving or operating machinery. However, due to high inter-subject variability, these differences were not statistically significant.

The most common side effects of Sildenafil: Other common ED drugs include Cialis and Levitra, both of which have similar positive effects to Viagra. Key points Viagra normally takes half an hour to an hour to work for the…. Myalgia, Pain in extremity. These include: Enter medicine name or company Start typing to retrieve search suggestions. Concomitant use with other PDE5 inhibitors or other treatments for erectile dysfunction The safety and efficacy of combinations of sildenafil with other PDE5 inhibitors, or other pulmonary arterial hypertension PAH treatments containing sildenafil REVATIO , or other treatments for erectile dysfunction have not been studied. Clinical data have shown that co-administration with saquinavir or erythromycin increased plasma levels of sildenafil by about 3 fold [ see Drug Interactions 7. Side effects see below are more likely when taking mg. Agents for the treatment of erectile dysfunction, including sildenafil, should be used with caution in patients with anatomical deformation of the penis such as angulation, cavernosal fibrosis or Peyronie's disease , or in patients who have conditions which may predispose them to priapism such as sickle cell anaemia, multiple myeloma or leukaemia. Share this: Chest pain, Fatigue, Feeling hot. Generic Sildenafil. Toggle navigation. Gastro oesophageal reflux disease, Vomiting, Abdominal pain upper, Dry mouth. Continue typing to refine. Serious cardiovascular events, including myocardial infarction, unstable angina, sudden cardiac death, ventricular arrhythmia, cerebrovascular haemorrhage, transient ischaemic attack, hypertension and hypotension have been reported post-marketing in temporal dosf with the use of VIAGRA. Find out what you can do to viagra your erections. Find out more here. Contact Dose.