Storage conditions: Sealed, stored in a cool and dry place.
Product category: Traditional Chinese Medicine (Compulsory Registration of Prescription Drugs)
Viagra citrate sildenafil is the original research product of the world's first type 5 phosphodiesterase (PDE5) inhibitor. It selectively inhibits PDE5 to relax penile vascular smooth muscle and increase corpus cavernosum blood flow, thereby inducing erection and is suitable for the treatment of erectile dysfunction. Approved by the US FDA in 1998, it was launched in China in 2000 and has been in China for over 20 years. This drug is developed and produced by Pfizer Pharmaceutical Co., Ltd.
What diseases can Wanaike be used to treat?
Viagra citrate sildenafil tablets are mainly used to treat male erectile dysfunction (ED), commonly known as impotence, and can improve penile erection status during medication.
What symptoms can Viagra be used to alleviate?
Viagra citrate sildenafil tablets can be used to alleviate erectile dysfunction caused by various etiologies. After taking medication, it can increase erection hardness, but it needs to exert its effect under sexual stimulation. Therefore, medication alone does not have the effect of increasing sexual desire.
What medications are commonly used with Viagra?
Please follow the doctor's advice when using medication in combination.
Before use:
For patients with a history of allergy to sildenafil and allergies to the excipients in Viagra citrate tablets, sildenafil should not be used. It is known that sildenafil can enhance the antihypertensive effect of nitric acid, so patients who take any form of nitric oxide donor and nitric acid should not use sildenafil.
In addition, Viagra citrate sildenafil tablets can also increase the blood pressure lowering effect of strong Q-receptor blockers. When used together with sildenafil, this type of drug may also induce severe orthostatic hypotension in patients. Therefore, it is not recommended to use it in combination. If combined with other drugs, it is recommended to consult a doctor for drug efficacy and carefully review the instructions.
Dosage: Viagra and Sildenafil Tablets can be taken within 0.54 hours before sexual activity, but it is recommended to use them 1 hour before or 2 hours after meals, as patients can reach their peak blood concentration after taking the medication on an empty stomach for about 1 hour.
Dosage: For most patients, the recommended initial dose for sildenafil tablets is 50mg. Based on comprehensive consideration of drug efficacy and patient tolerance, the dose can be increased to 100mg (maximum recommended dose) or reduced to 25mg (recommended initial dose for elderly patients over 65 years old) under the guidance of a doctor.
Dosage: The maximum dose taken within 24 hours is 100mg; Patients with male erectile dysfunction are recommended to take medication regularly, or they can take medication according to their needs. After 8 weeks, they can be re evaluated. Please follow the doctor's advice for details.
Attention: Viagra only enhances erectile function under sexual stimulation and does not increase libido itself. Without sexual stimulation, the medication will not take effect.
What is the specific usage of Viagra?
Adult medication: The recommended dosage is 50mg, and this product should be taken as needed approximately 1 hour before sexual activity. Based on efficacy and tolerability, the dosage can be increased to 100mg (maximum recommended dose). It is recommended to take it at most once a day. When there is no sexual stimulation, the recommended dose of sildenafil does not work, and sildenafil needs to be effective under sexual stimulation. Please follow the doctor's advice for details.
For elderly patients over 65 years old, patients with renal dysfunction, patients with liver dysfunction, and patients currently taking other medications, the recommended starting dose is 25mg.
Viagra (sildenafil citrate tablets) can be taken for a long time. In addition, any medication has certain side effects and contraindications. Patients must use it under the guidance of a doctor according to their own physical condition.
Notice after use:
Viagra citrate sildenafil tablets are limited to male erectile dysfunction, improving erectile function, and have no aphrodisiac effect. Therefore, do not increase the dosage without authorization, and take it up to once a day.
Medication must be taken under sexual stimulation. Medication can increase vascular dilation and increase erection hardness. Additionally, please keep this product out of reach of children. If the characteristics of this product change, please stop taking it immediately.
How long does it usually take to take effect after using Viagra?
After taking Viagra Lycium Acid Sildenafil Tablets, it takes about 0.5-2 hours to take effect, and the fastest time to take effect is 14 minutes
Randomized, double-blind, placebo-controlled study: A total of 228 ED patients who received treatment with sildenafil (100mg) and had good therapeutic effects were included. Randomly receive treatment with sildenafil 100mg (n=115) or placebo (n=113) for 4 weeks before sexual activity, and evaluate the time to achieve an erection (effective) that is sufficient for successful insertion after taking the medication.
After oral administration of medication on an empty stomach, the plasma peak concentration is reached 30 to 120 minutes. When taken together with a high-fat diet, the absorption rate decreases, with an average delay of 60 minutes in reaching the peak time. The plasma peak concentration decreases by an average of 29%, but the degree of absorption is not affected. The elimination half-life of sildenafil and its metabolites is approximately 4 hours.
How long does it usually take to take effect after using Viagra?
After taking Viagra Lycium Acid Sildenafil Tablets, it takes about 0.5-2 hours to take effect, and the fastest time to take effect is 14 minutes.
Randomized, double-blind, placebo-controlled study: A total of 228 ED patients who received treatment with sildenafil (100mg) and had good therapeutic effects were included. Randomly receive treatment with sildenafil 100mg (n=115) or placebo (n=113) for 4 weeks before sexual activity, and evaluate the time to achieve an erection (effective) that is sufficient for successful insertion after taking the medication.
After oral administration of medication in an empty state, the peak blood concentration is reached within 30 to 120 minutes. When taken in conjunction with a high-fat diet, the absorption rate decreases, with an average delay of 60 minutes in reaching the peak time. The average plasma peak concentration decreases by 29%, but the degree of absorption is not affected. The elimination half-life of sildenafil and its metabolites is approximately 4 hours.
How long can the efficacy of Viagra generally last?
The optimal state for taking Viagra Lycium Acid Sildenafil Tablets is between 0.5 and 4 hours, and it is still effective after 4 to 5 hours. After 24 hours, there was almost no residue.
What should I do if I miss using Viagra?
Take as needed, generally there is no problem of missed medication. This product can be taken at any time within 0.5-4 hours before sexual activity, and it is recommended to take it 1 hour before sexual activity.
Due to the influence of high-fat foods, it needs to be taken on an empty stomach or 2 hours after eating, and can take effect under sexual stimulation.
What should I do if I overdo using Viagra?
The maximum daily dose is 100mg. When an erection lasts for more than 4 hours, patients should seek medical attention immediately and receive routine supportive therapy as needed.
What are the adverse reactions of Viagra?
The adverse reactions of patients treated with Viagra and sildenafil can include headache, dizziness, visual abnormalities, facial flushing, nasal congestion, nausea, and indigestion.
Occasional rhinitis, drowsiness, decreased sensation, conjunctivitis, dizziness, tinnitus, tachycardia, palpitations, hypertension, hypotension, rash, limb pain and hematuria, etc. But the nature of the above adverse reactions is mostly mild, and they are brief and transient.
Under what circumstances is it necessary to immediately stop using Viagra?
If the following adverse reactions occur during medication, please inform your doctor in a timely manner. The doctor will determine whether to stop the medication or take necessary measures based on the severity of the adverse reactions. If suffering from cardiovascular diseases, it is not recommended to use this medication.
The most common adverse reactions (with an incidence rate of one in ten) in patients treated with Viagra and sildenafil citrate are headaches. Common symptoms (with an incidence rate of 1% to less than 1%) include dizziness, visual color distortion, visual impairment, blurred vision, hot flashes, nasal congestion, nausea, and indigestion;
Occasional symptoms (with an incidence rate of 1% to less than 1%) include rhinitis, hypersensitivity, drowsiness, decreased sensation, tear secretion disorders, eye pain, photophobia, flash hallucinations, eye congestion, visual brightness, conjunctivitis, dizziness, tinnitus, tachycardia, palpitations, high blood pressure, low blood pressure, incision, sinus congestion, gastroesophageal reflux disease, vomiting, upper abdominal pain, mouth pain, rash, myalgia, limb pain, hematuria, chest pain, fatigue, fever, and increased heart rate.
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