When flying, never put it into a checked bag. Keep it in your carry-on bag. Don’t worry about airport X-ray machines. You may need to show airport staff the pharmacy label for your medication. Always carry the original prescription-labeled container with you. Don’t put this medication in your car’s glove compartment or leave it in the car. Be sure to avoid doing this when the weather is very hot or very cold. If you’re taking this drug for PAH, your doctor may monitor your blood pressure and pulse regularly.
- Sildenafil can cause side effects such as dizziness, vision changes, or priapism.
- Priapism is a prolonged erection that requires urgent medical attention.
- Patients should avoid grapefruit juice while taking sildenafil due to interactions.
- The medication is contraindicated in those with severe cardiovascular conditions.
- Sildenafil is not recommended for use with certain antidepressants or blood pressure medicines.
- It is important to hydrate well and avoid excessive alcohol intake.
- In some cases, it can be used to treat pulmonary arterial hypertension.
- The medication can be prescribed even if erectile dysfunction is secondary to other conditions.
- Discontinue use and consult a doctor if side effects or allergic reactions occur.
- Sildenafil 50mg is a moderate dose suitable for many men with ED.
- Regular medical checkups are advised to monitor health while on sildenafil.
When filling your prescription, be sure to call ahead to make sure your pharmacy carries it.
- Sildenafil 50mg is a medication used to treat erectile dysfunction.
- It belongs to the class of phosphodiesterase type 5 inhibitors.
- Typical starting dose is 50mg taken about an hour before activity.
- Sildenafil works by increasing blood flow to the penis.
- It can help achieve and maintain an erection suitable for sex.
- The effects of sildenafil usually last around 4 to 6 hours.
- Avoid taking sildenafil with high-fat meals as it may delay absorption.
- Common side effects include headaches, flushing, and nasal congestion.
- Patients should not exceed one dose within a 24-hour period.
- It is important to consult a doctor before using sildenafil, especially if on other medications.
- Sildenafil may cause dizziness; avoid driving until effects are known.
Many insurance companies require prior authorization for this drug. This means your doctor may need to get approval from your insurance company before your insurance company will pay for the prescription.
Frequently asked questions
It comes with serious risks if you don’t take it as prescribed. If you stop taking the drug suddenly or don’t take it at all: For ED: Your ED symptoms won’t improve. For PAH: Your condition won’t improve and may get worse. Also, you won’t be able to exercise. If you miss doses or don’t take the drug on schedule: For ED: Your ED symptoms won’t improve.
Sildenafil Tablets for ED
For PAH: This medication may not work as well or may stop working completely. For this drug to work well, a certain amount needs to be in your body at all times. If you take too much: You could have dangerous levels of the drug in your body. Symptoms of an overdose of this drug can include: If you think you’ve taken too much of this drug, call your doctor or local poison control center. If your symptoms are severe, call 911 or go to the nearest emergency room right away. Sildenafil under the brand name Viagra is prescribed to treat erectile dysfunction by increasing blood flow to the penis during arousal. Sildenafil under the brand name Revatio is often prescribed to help adults with PAH get more exercise by treating their condition. What if I forget to take it?
| Product | Dosage | Quantity + Bonus | Price | |
|---|---|---|---|---|
| Viagra Generic | 25mg | 120 + 6 Pills | 125.56€ 119.58€ | |
| Kamagra | 100mg | 120 + 6 Pills | 330.74€ 314.99€ | |
| Viagra Generic | 100mg | 270 + 10 Pills | 270.47€ 257.59€ | |
| Kamagra | 100mg | 60 + 4 Pills | 201.34€ 191.75€ | |
| Viagra Generic | 150mg | 30 + 2 Pills | 72.32€ 68.88€ | |
| Viagra Generic | 25mg | 270 + 8 Pills | 184.26€ 175.49€ | |
| Kamagra Soft Tabs | 100mg | 180 + 8 Pills | 425.45€ 405.19€ | |
| Viagra Generic | 100mg | 60 + 4 Pills | 96.36€ 91.77€ | |
| Viagra Generic | 25mg | 360 + 10 Pills | 213.68€ 203.50€ | |
| Viagra Generic | 150mg | 120 + 8 Pills | 177.58€ 169.12€ | |
| Kamagra Soft Tabs | 100mg | 272 + 12 Pills | 593.42€ 565.16€ | |
| Kamagra | 100mg | 20 Pills | 86.09€ 81.99€ | |
| Kamagra Oral Jelly | 100mg | 110 + 9 Sachets | 334.87€ 318.92€ | |
| Kamagra Soft Tabs | 100mg | 20 Pills | 79.79€ 75.99€ | |
| Viagra Generic | 50mg | 180 + 8 Pills | 158.82€ 151.26€ | |
| Viagra Generic | 200mg | 30 + 2 Pills | 83.07€ 79.11€ |
If you are taking Revatio and you forget to take your scheduled dose, take it as soon as possible. However, you should never double your dosage. If you completely miss a dose and it’s time for the next dose, skip the one you missed. Are there any safety measures I should take before using this drug? Like most medications, there are precautions you should take before using this drug. Make sure you talk with your doctor about: any other drugs, medications, herbs, or supplements you take or plan to take any medical conditions or surgeries you have or plan to have if you are pregnant or plan to become pregnant There are other drugs available to treat your condition.
In case of emergency/overdose
This drug has not been confirmed to be safe or effective in children younger than 18 years. Senior dosage (ages 65 years and older) The kidneys, liver, or heart of older adults may not work as well as they used to. This raises your risk of side effects. Your doctor may start you on a lowered dosage of sildenafil. This can help prevent levels of this drug from building up in your body.
Does Viagra work the first time you use it?
Typical dosage: 5 or 20 mg, taken three times per day about 4 to 6 hours apart Maximum dosage: 20 mg, taken three times per day about 4 to 6 hours apart This drug shouldn’t be used in children younger than 18 years of age. Disclaimer: Our goal is to provide you with the most relevant and current information. However, because drugs affect each person differently, we cannot guarantee that this list includes all possible dosages. Always speak with your doctor or pharmacist about dosages that are right for you. Sildenafil oral tablet is used for short-term treatment of ED and long-term treatment of PAH. Some may be better suited for you than others. Talk with your doctor about other drug options that may work for you. Sildenafil and tadalafil are alike because they both can treat ED and PAH. However, tadalafil has a few distinctions from sildenafil.
What is sildenafil?
For seniors: The kidneys, liver, or heart of older adults may not work as well as they used to. This can cause your body to process drugs more slowly. As a result, a higher amount of a drug stays in your body for a longer time. This raises your risk for side effects. For children: This drug isn’t recommended in children younger than 18 years.
Sildenafil Tablets or Oral Suspension for PAH
In one study, children with PAH who took this drug had an increased chance for death. All possible dosages and drug forms may not be included here. Your dosage, drug form, and how often you take the drug will depend on: how you react to the first dose Strengths: 25 mg, 50 mg, 100 mg Strengths: 25 mg, 50 mg, 100 mg Typical dosage: 50 mg, taken as needed about 1 hour before sexual activity. It can be taken 30 minutes to 4 hours before sexual activity. Maximum dosage: 100 mg once per day. Tadalafil is the generic name for the erectile dysfunction drug Cialis. There are two versions of the drug: a version that can be taken as needed Cialis 5-mg daily dosing is the only PDE5 inhibitor dose approved for treating an enlarged prostate; improving ED symptoms is an added benefit of the daily dose. Because of the “as needed” version of tadalafil, some users may find this option more convenient.
| Side Effect | Frequency | Severity | Management | Notes |
|---|---|---|---|---|
| Headache | Common | Mild | Analgesics | Usually transient |
| Flushing | Common | Mild | Cooling measures | Temporary |
| Nasal Congestion | Common | Mild | Decongestants | Usually resolves |
| Dizziness | Less common | Moderate | Rest and hydration | Exercise caution |
The downside, however, is that side effects tend to last longer too. The main difference between generic sildenafil and Viagra is marketing. The main ingredient in Viagra is sildenafil, meaning that the drugs are essentially the same. However, Viagra is marketed and prescribed strictly for erectile dysfunction, while generic sildenafil can be prescribed for PAH as well. Viagra is also known as “the little blue pill” because of its blue color, while generic sildenafil tends to be a white color. Disclaimer: Healthline has made every effort to make certain that all information is factually correct, comprehensive, and up to date. However, this article should not be used as a substitute for the knowledge and expertise of a licensed healthcare professional. You should always consult your doctor or other healthcare professional before taking any medication.
| Drug Type | Interaction Effect | Recommended Action | Risks |
|---|---|---|---|
| Nitrates | Severe hypotension | Avoid concurrent use | Potential cardiovascular collapse |
| CYP3A4 inhibitors | Increased plasma levels | Dose adjustment | Risk of increased side effects |
| Alpha-blockers | Dizziness, hypotension | Monitor closely | Additive blood pressure lowering |
The drug information contained herein is subject to change and is not intended to cover all possible uses, directions, precautions, warnings, drug interactions, allergic reactions, or adverse effects.
Start your treatment journey
Store sildenafil tablets at room temperature between 59°F and 86°F (15°C and 30°C). Don’t store this medication in moist or damp areas, such as bathrooms. A prescription for this medication is refillable. You should not need a new prescription for this medication to be refilled. Your doctor will sildenafil 130mg write the number of refills authorized on your prescription. The absence of warnings or other information for a given drug does not indicate that the drug or drug combination is safe, effective, or appropriate for all patients or all specific uses.
| Condition | Risk | Alternative Treatment | Notes |
|---|---|---|---|
| Nitrate use | Severe hypotension | Other ED medications | Avoid combination |
| Severe cardiac conditions | Risk of myocardial ischemia | Consult cardiologist | Necessary pre-treatment assessment |
| Known hypersensitivity | Allergic reactions | Avoid medication | Check for allergies |
The sildenafil citrate, with the CAS No: 171599-83-0, is also known as Viagra, Sildenafil citrate. Sildenafil citrate (trade name: Viagra), an oral phosphodiesterase 5 (PDE5) inhibitor, opened a new chapter in the history of erectile dysfunction (ED) treatment. Since the United States Food and Drug Administration (FDA) approved the listing of sildenafil citrate in March 1998, great progress has been made in the study of PDE5 inhibitors represented by this drug.
Precautions for Taking Viagra or Sildenafil
You can cut or crush the tablet. When you take the drug depends on the condition being treated:For ED: You can take this drug at any time of day.For PAH: Take this drug three times per day about 4–6 hours apart. Take it at the same time every day. For ED: You can take this drug at any time of day. For PAH: Take this drug three times per day about 4–6 hours apart. With the expiration of the original research patent of sildenafil, it is the goal of the synthetic workers to prepare high purity sildenafil citrate stably and efficiently and adapt to industrial production. The sildenafil citrate can be synthesized by 3 steps according to the previous work [1]. 5-[2-hydroxy-5-(4-methylpiperazinyl-1-yl-sulphonyl)phenyl)-1-methyl-3-n-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one (90 g) was dissolved in dichloromethane (360 ml) and added triethyl amine (41 ml) at room temperature and stirred for 10 min.
- Sildenafil 50mg is available by prescription or over-the-counter in some regions.
- It is not a treatment for erectile dysfunction caused by psychological issues alone.
- Women and children should not use sildenafil unless prescribed by a doctor.
- Sildenafil interacts with nitrates, which can cause dangerous blood pressure drops.
- Alcohol consumption can reduce the effectiveness of sildenafil and increase side effects.
- Storage of sildenafil should be in a cool, dry place away from children.
- The medication is typically taken only once per day to avoid overdose.
- Some people may experience visual disturbances as a side effect.
- Sildenafil may be used with other erectile dysfunction medications under medical supervision.
- The onset of action is usually within 30 to 60 minutes after ingestion.
- Sildenafil 50mg is preferred for men who find higher doses cause adverse effects.
The reaction mixture was cooled to 0-5°C and followed by the addition of ethyl chloroformate (24ml) over 30 min under nitrogen atmosphere. The temperature of the reaction was raised slowly to 28-30°C and maintained for 24 hrs. The reaction mixture was cooled to 0-5°C and kept it for 1 hr. The product formed was filtered, washed with dichloromethane, dried and purified from methanol (270ml) to obtain 81 g of the title compound.
- Sildenafil 50mg is often preferred for first-time users to gauge effectiveness.
- It is important to follow the prescribed dosage for safety and efficacy.
- Overuse of sildenafil can lead to serious health risks and complications.
- The medication should be taken in the prescribed dose and not altered without medical advice.
- Some foods and medications can affect how sildenafil works in the body.
- Erectile dysfunction can have underlying health causes that require medical attention.
- Sildenafil does not cure erectile dysfunction; it only helps manage symptoms.
- Using sildenafil without a proper diagnosis can mask underlying health issues.
- It is essential to report any adverse reactions to a healthcare professional immediately.
- Men with heart conditions should consult a doctor before using sildenafil.
- Sildenafil 50mg is a common starting dose for many patients.
The reaction temperature was raised to 110 °C with internal pressure of 1.8-4.0 kg/cm2 and maintained for 6 hours followed by cooling to room temperature.
What special precautions should I follow?
What to do if you miss a dose: For ED: Take your dose 30 minutes to 4 hours before your next sexual activity. For PAH: Take your dose as soon as you remember. But if you remember just a few hours before your next scheduled dose, take only one dose. Never try to catch up by taking two doses at once. This could result in dangerous side effects.
What to do if you think you’ve taken too much Viagra
How to tell if the drug is working: For ED: You should be able to get and maintain an erection when sexually aroused. For PAH: You should be able to exercise more easily. Your doctor will also check you to determine if this drug is working. Keep these considerations in mind if your doctor prescribes sildenafil for you. You can take this drug with or without food. The solvent was distilled off to get the crude Sildenafil base. The base thus obtained was dissolved in dichloromethane (380ml), filtered and filtrate was distilled out completely to get solid material, which is again dissolved in a mixture dichloromethane and isopropyl ether. The crude obtained was recrystallized from ethanol (260ml) to obtain 17.4gm of pure Sildenafil base. Sildenafil base (50 g) was dissolved in acetone (850 ml) at 55°C and then slowly added citric acid solution (20 g in 100 ml acetone) over 45 min and maintain the reaction mixture for about 30 min. The reaction mixture was cooled, filtered and dried to get 65 g of Sildenafil citrate.