Specifically, you may have a lower starting dosage than usual if you’re over the age of 65 years. For example, a 30-year-old might start at a dose of 50 milligrams (mg), while a 70-year-old might have a starting dose of 25 mg.

What happens if I miss a dose?

Viagra, which Pfizer developed, was the first PDE5-inhibitor used to treat erectile dysfunction. Today, there are other PDE5-inhibitors—including Cialis (tadalafil) and Levitra (vardenafil)— on the market as well. Your healthcare provider will help you choose the best ED treatment for you by reviewing several factors, including any health conditions you may have. The main difference between Viagra and Cialis, for example, is that Cialis typically lasts longer—it can help you achieve an erection for up to 36 hours after ingestion. Cialis can also be taken in a smaller dosage daily to help produce an erection when you’re ready for it.

How can I tell if Viagra’s not working?

If you prefer to eat before sex, Cialis may be a better option than Viagra since it is not known to be affected by fatty foods. Cialis also doubles as a treatment for an enlarged prostate. Levitra can start working slightly faster than Viagra: In some, Levitra can work in as little as 15 minutes. Or, if you have tried Viagra and had unpleasant side effects or didn’t feel that it worked well, Levitra could be a good alternative. Always tell your healthcare provider about all other medicines you take before taking Viagra.

Enhanced understanding of the relationship between erection and satisfaction in ED treatment: application of a longitudinal mediation model

They can help determine if the little blue pill is safe for you. The following medications can cause adverse reactions with Viagra: Heart medicines containing nitrates, including Nitrostat (nitroglycerin) and Isordil Titradose (isosorbide dinitrate). Like Viagra, these medicines can lower blood pressure. Taking a combination of a Viagra and a nitrate may lead to dangerously low blood pressure. Blood pressure medications: Blood pressure medications, such as Zestril (lisinopril) and Cozaar (losartan), may cause severely low blood pressure in combination with Viagra. This is because, in older people, the body clears Viagra from their system more slowly. If you have questions about Viagra dosages based on your age, talk with your doctor or pharmacist. The highest recommended Viagra dose for treating erectile dysfunction (ED) is 100 mg per day, according to the drug’s manufacturer.

Product	Dosage	Quantity + Bonus	Price
Viagra Generic	25mg	270 + 8 Pills	184.26€ 175.49€	Buy
Viagra Generic	25mg	60 + 4 Pills	71.99€ 68.56€	Buy
Viagra Generic	150mg	270 + 10 Pills	326.61€ 311.06€	Buy
Viagra Generic	200mg	180 + 10 Pills	277.56€ 264.34€	Buy
Kamagra	100mg	12 Pills	55.64€ 52.99€	Buy
Viagra Generic	150mg	360 + 10 Pills	423.48€ 403.31€	Buy
Kamagra Polo	100mg	180 + 8 Pills	446.52€ 425.26€	Buy
Viagra Generic	50mg	120 + 6 Pills	129.64€ 123.47€	Buy
Viagra Generic	100mg	120 + 6 Pills	149.50€ 142.38€	Buy
Kamagra	100mg	84 + 6 Pills	264.44€ 251.85€	Buy
Viagra Generic	100mg	20 Pills	45.58€ 43.41€	Buy
Kamagra Soft Tabs	100mg	180 + 8 Pills	425.45€ 405.19€	Buy
Viagra Generic	200mg	30 + 2 Pills	83.07€ 79.11€	Buy
Viagra Generic	200mg	120 + 8 Pills	204.80€ 195.05€	Buy
Kamagra Soft Tabs	100mg	120 + 6 Pills	311.78€ 296.93€	Buy

Doses of 150 mg or 200 mg would be considered off-label use. “Off-label” is when a drug is prescribed to treat a condition it isn’t approved to treat, or in a dose that’s not approved by the Food and Drug Administration (FDA).

Shipping Information

If you use an internet pharmacy, check the website for the VIPPS (Verified Internet Pharmacy Practice Sites) seal. Buy in bulk: Like most things, pharmaceuticals often cost less when purchased in larger quantities. Look for a 90-day supply as opposed to a 30-day supply. Use SingleCare coupons: SingleCare coupons can help you locate the lowest-priced medications in your area. Use the Viagra coupon below to find a reduced price, such as $8.54 for 30, 100 mg generic Viagra (sildenafil) pills, at a participating pharmacy near you.

Viagra and other medications

Definition & facts for erectile dysfunction, National Institute of Diabetes, Digestive and Kidney Diseases Effects of sildenafil (Viagra) administration on seminal parameters and post-ejaculatory refractory time in normal males, Human Reproduction (2000) Influence of alcohol on phosphodiesterase 5 inhibitors use in middle- to old-aged men: A comparative study of adverse events, Sexual Medicine (2019) Effects of grapefruit juice on the pharmacokinetics of sildenafil, Clinical Pharmacology and Therapeutics (2002) Viagra (sildenafil citrate) and ophthalmology, Progress in Retinol and Eye Research (2002) Effect of phosphodiesterase type 5 inhibitors on major adverse cardiovascular events and overall mortality in a large nationwide cohort of men with erectile dysfunction and cardiovascular risk factors: A retrospective, observational study based on healthcare claims and national death index data, The Journal of Sexual Medicine (2023) Questions and answers for Cialis (tadalafil), U.S. Food and Drug Administration (FDA) Pharmacokinetic interactions between sildenafil and saquinavir/ritonavir, British Journal of Clinical Pharmacology (2000) Ingesting or inhaling nitrite “poppers” can cause severe injury or death, U.S. Food and Drug Administration (FDA) Medically accurate: SingleCare’s Medical Review Board analyzes all of our content to confirm it’s in line with current medical advice. Evidence-based: Our content is sourced from reputable U.S.-based healthcare professionals and peer-reviewed research. Trustworthy: All of SingleCare’s content goes through a multi-phase review process by our writers, editors, and Medical Board in order to provide clear and credible information.

Drug forms and administration

Viagra treats erectile dysfunction (ED) in adults. It’s usually taken about 1 hour before sexual activity. Viagra dosage is not based on weight, but your age can affect your dosage. Viagra comes as an oral tablet that contains the active drug sildenafil. Sildenafil is also available in generic form. If you have questions about the highest dosage of Viagra that’s safe for you, talk with your doctor or pharmacist. Both Cialis (tadalafil) and Viagra are prescribed to treat ED.

How should I take sildenafil?

For information on the dosage of Viagra, including its pill form, strengths, and how to take the drug, keep reading. For a comprehensive look at Viagra, see this article. This article describes typical dosages for Viagra provided by the drug’s manufacturer. When taking Viagra, always follow the dosage prescribed by your doctor. Here are details about Viagra dosages commonly used to treat erectile dysfunction (ED).

Revatio Injection

Viagra tablets are available liquid sildenafil citrate in three strengths: The following information describes commonly recommended dosages for ED. You’ll likely start with a Viagra dose of 50 mg. You’ll typically take Viagra about 1 hour before sex. You can take the drug 30 minutes to 4 hours before you anticipate sexual activity. Based on how well you respond to this dosage and any side effects you have, your doctor may either increase your dose up to the maximum of 100 mg or decrease your dose to 25 mg.

What Are the Available Sildenafil Dosages?

You should not take Viagra more than once per day. And you should only take it as needed. Viagra is meant to be used as a long-term treatment. If you and your doctor determine that Viagra is safe and effective for you, you’ll likely take it long term. Here are answers to some frequently asked questions about Viagra dosages. Neither drug should be taken more than once per day. Viagra is used as needed, meaning you only take a dose prior to sexual activity. Cialis can be prescribed for use as needed, but can also be prescribed for use once per day, every day (without timing the dose around sexual activity). This is the biggest difference in approved dosages of Cialis compared with Viagra.

• Sildenafil's effectiveness depends on regular health check-ups and appropriate use.
• Patients should avoid high-fat meals before taking sildenafil, which can delay absorption.
• Report any vision changes, including blurred vision or color discrimination issues.
• Sildenafil's popularity has led to a wide range of counterfeit products online.
• Proper treatment involves addressing underlying causes of erectile dysfunction alongside medication.

Talk with your doctor or pharmacist if you have questions about which drug is a better option for you. how you respond to Viagra, including any side effects you may have Other medical conditions you have can also affect your Viagra dosage.

• Sildenafil works by inhibiting PDE5 enzyme, increasing blood flow to the penis.
• Common sildenafil dosages are 25mg, 50mg, and 100mg tablets, not measured in grams.
• The medication may cause side effects like headaches, flushing, or dizziness.
• Always consult a healthcare provider before using sildenafil to determine proper dosage.
• Using large quantities like 100g without medical supervision is dangerous and not recommended.

Your doctor may start you on a lower Viagra dosage than usual if you: have liver problems, such as cirrhosis (scarring of the liver) have severe kidney problems, such as chronic kidney disease take certain medications, such as ritonavir or doxazosin Your doctor can give you more information on the safest Viagra dosage for you, including information about factors that can affect your dosage.

• Sildenafil enhances erectile function by relaxing penile blood vessels.
• Pfizer's sildenafil has helped millions worldwide with erectile dysfunction since the late 1990s.
• Proper storage of sildenafil involves keeping it in a cool, dry place away from sunlight.
• The drug's effects typically last for about 4-6 hours after intake.
• Overdose symptoms can include severe hypotension and prolonged erections; seek medical help.

Usually, you’ll take your dose about 1 hour before sexual activity. But Viagra may be taken between 30 minutes and 4 hours before you anticipate sexual activity. Viagra tablets may be taken with or without food. Keep in mind that meals high in fat may cause Viagra to take longer than usual to start working. Do not take more than one dose of Viagra per day.

Overdose/Missed Dose

Revatio, which contains sildenafil, the same active ingredient as Viagra, can also cause dangerously low blood pressure when taken along with Viagra. CYP3A4 liver enzyme blockers: Protease inhibitors such as Invirase (saquinavir) and Norvir (ritonavir), which are used to treat HIV/AIDS, can slow the breakdown of Viagra in the body. In addition, certain antibiotics and antifungals have the same effect, which can lead to increased levels of Viagra and an increased risk of Viagra’s side effects. Doctors may prescribe a lower dose (25 mg) of Viagra for patients who are also taking these types of drugs. Additionally, Viagra should not be taken with “poppers,” says Dr.

5. Be aware of the side effects

Cowan. Poppers are over-the-counter products used recreationally, sometimes in a sexual context. They contain chemicals similar to nitrates and can lead to a dangerous drop in blood pressure when combined with Viagra. Although the drug is widely prescribed, Viagra isn’t cheap. A single higher dose 100 mg pill can cost more than $100.

Drug form and strengths

Luckily, there are several ways to save. Not all insurers cover Viagra, but your health insurance provider may cover another brand of ED medication. Check your insurance formulary to find out. Go generic: You’ll pay a fraction of the prices for the same active ingredients in generic ED medications like sildenafil, the generic version of Viagra. However, since ED drugs are some of the most counterfeited in the world, it’s essential to make sure that your pills come from a reputable pharmacy in the U.S. Doing this can increase your risk for serious side effects. It’s important that you do not use more Viagra than your doctor prescribes. For some medications, taking more than the recommended amount may lead to side effects or overdose. Call your doctor right away if you believe you’ve taken too much Viagra. Another option is to call America’s Poison Control Centers at 800-222-1222 or use its online tool. If you have severe symptoms, immediately call 911 or your local emergency number, or go to the nearest emergency room.

• The patent for Viagra held by Pfizer expired, increasing generic options on the market.
• Using sildenafil pills in incorrect doses can lead to health complications.
• Sildenafil may cause visual disturbances as a side effect in some users.
• Your doctor may recommend blood tests before starting sildenafil therapy.
• Lifestyle changes such as exercise and quitting smoking can improve erectile health.

Sildenafil (Viagra) increases blood flow to the penis so that you can get an erection. But it may cause side effects, including light sensitivity and diarrhea.