Maximum strength Viagra: what’s the highest dose of Viagra?
Viagra (sildenafil) comes in three dosages: 25 mg, 50 mg, and 100 mg. The most common starting dose of Viagra is 50 mg, and the highest dose available is 100 mg. Your healthcare provider will prescribe the dose of Viagra that’s best for you, depending on your medical history and any other drugs or supplements you’re currently taking. Never take more than one dose of Viagra in any 24-hour period.
table of contents
Disclaimer
If you have any medical questions or concerns, please talk to your healthcare provider. The articles on Health Guide are underpinned by peer-reviewed research and information drawn from medical societies and governmental agencies. However, they are not a substitute for professional medical advice, diagnosis, or treatment.
When it comes to medication, more isn’t always better (or more effective). That’s true with Viagra, too. It’s totally understandable to be curious about the highest dose of Viagra; we tend to want the most bang for our literal or figurative buck. But cranking your Viagra dose up to 11 isn’t the right choice for every guy, and it’s important to follow recommendations from your healthcare provider. Keep reading to learn more.
ADVERTISEMENT
Start your free visit for ED treatment
A real, U.S.-licensed healthcare professional will review your information and get back to you within 24 hours.
What Viagra dosages are available?
Brand name Viagra comes (generic name sildenafil; see Important Safety Information) in three dosages: 25 mg, 50 mg, and 100 mg. 50 mg is the most commonly prescribed Viagra dosage (but that doesn’t necessarily mean it’s right for you) (FDA, 2014).
Sildenafil can also be prescribed off-label (as the generic form of a drug called Revatio; see Important Safety Information) in 20 mg, 40 mg, 60 mg, 80 mg, and 100 mg doses.
100mg is the maximum dosage available for Viagra and sildenafil, and your healthcare provider is unlikely to prescribe more than that for you.
How does Viagra work?
Viagra, the brand name of sildenafil, is an oral medication used to treat erectile dysfunction (ED). It works by opening up the blood vessels that lead to your penis, a process known as vasodilation. That makes blood flow more freely into the penis to make it easier to get and keep an erection.
Viagra isn’t automatically effective—it won’t give you an instant erection regardless of how you feel or where you are. You must be sexually aroused for it to work, and it can take up to two hours to kick in, though it usually starts to work within 40 minutes.
11 all-natural ways to protect your erection
What determines your prescribed Viagra dosage?
Your healthcare provider will prescribe the dose of Viagra that’s best for you. Their decision often depends on:
- Your age
- Your overall and heart health
- Other medical conditions you have—Health conditions such as liver or kidney disease may affect how your body absorbs Viagra, and you may need to take a lower dose. (And people who take medications such as nitrates for heart conditions shouldn’t take Viagra at all).
- How you react to the first dose—Some people need a higher or lower dosage of Viagra to see the desired effect. Depending on your medical history, symptoms, and preferences, your doctor may start you at the lowest dose (25 mg of Viagra or 20 mg of sildenafil) to reduce the risk of side effects. Typically, they may recommend that you try using it a few times to see how it affects you. Also, some people like to try it first alone before using it with a partner.
- How often you use the medication—Do you plan to use Viagra every day? A few times a week? Once in a blue-pilled moon? The frequency of sex may affect what dosage your healthcare provider prescribes. They might also suggest a different medication, such as daily Cialis.
Regardless of the dosage of Viagra you’re prescribed—and this is important—never take more than one dose in any 24-hour period.
How much Viagra should you take the first time?
Your healthcare provider may start you on a lower dose to see how you tolerate it before increasing the dose. Remember: more doesn’t necessarily equal better. What matters is finding the right dose for you.
Sexual performance anxiety: causes, symptoms, and how to overcome
Adjusting your Viagra dose
If Viagra isn’t working as it should—and you’ve followed all of your provider’s recommendations —they may prescribe a higher dose or switch you to a different medication.
Viagra’s effectiveness can depend on:
- The dosage you’re originally prescribed—It may or may not have been the right amount for you.
- Whether you take the drug on a full stomach—Doing so can slow Viagra’s absorption by the body, resulting in a delayed erection or one that is not as hard as you might like.
- Whether you’ve given Viagra the appropriate amount of time to work—Take it one to two hours before you plan to have sex.
- Psychological factors, such as performance anxiety
Potential side effects of Viagra
The most common side effects of Viagra include dizziness, headache, flushing, upset stomach or indigestion, increased sensitivity to light, blurred vision, “blue-tinted” vision, a stuffy or runny nose, insomnia, rash, and muscle pain (MedLinePlus, 2018).
Less common side effects of Viagra include priapism (a prolonged erection that won’t go away), heart attack-like symptoms (like pressure in your chest), eye problems such as sudden vision loss, ringing in your ears or hearing loss, seizures, or swelling in the extremities. If you experience any of these symptoms, seek immediate medical attention.
How to take Viagra for best results: top tips to enhance effectiveness
Viagra isn’t right for everyone. Work with your healthcare provider to ensure Viagra is a safe choice for you. If you’re taking any other medications—like nitrates or alpha-blockers—your provider may not recommend Viagra.
You should never increase your dose, double your dose, or change how you take ED medication without the advice of your healthcare provider. If Viagra isn’t working the way you’d like, or you’re experiencing side effects, speak to your healthcare provider.
References
- MedlinePlus. (2018). Sildenafil. NIH: National Library of Medicine. Retrieved on Jan. 17, 2022 from https://medlineplus.gov/druginfo/meds/a699015.html
- U.S. Food and Drug Administration (FDA). (2014). Viagra (sildenafil citrate) tablets, for oral use. Retrieved on Jan. 17, 2022 from https://www.accessdata.fda.gov/drugsatfda_docs/label/2014/20895s039s042lbl.pdf
Cialis not working anymore? Possible next moves
Can I take Viagra with antiretrovirals (ARVs) for HIV?
Can you treat ED with vitamins and natural supplements?
Can I take Viagra if I’m on nitrates? Is it safe?
Daily Viagra: how often can you take it?
Can you take Cialis in the morning, Viagra at night?
Coronavirus and sildenafil: a possible treatment?
How does Viagra (sildenafil) work?
Digital Health Clinic for Men
Digital Health Clinic for Women
Simple, Affordable Online Pharmacy
The Patient Company
Important Safety Information for Sildenafil (Viagra)
What are the most important things I need to know about VIAGRA® (sildenafil citrate) 25 mg, 50 mg, and 100 mg tablets and generic VIAGRA®?
Discuss your health with your doctor to ensure that you are healthy enough for sex. If you experience chest pain, dizziness, or nausea during sex, seek immediate emergency medical attention.
- VIAGRA® and generic VIAGRA® can cause serious side effects. Serious, but rare, side effects include:
- an erection that will not go away (priapism). If you have an erection that lasts more than 4 hours, seek emergency medical attention right away. If it is not treated right away, priapism can permanently damage your penis.
- sudden vision loss in one or both eyes. Sudden vision loss in one or both eyes can be a sign of a serious eye problem called non-arteritic anterior ischemic optic neuropathy (NAION). Stop taking VIAGRA and call your healthcare provider right away if you have any sudden vision loss
- sudden hearing decrease or hearing loss. Some people may also have ringing in their ears (tinnitus) or dizziness. If you have these symptoms, stop taking VIAGRA and contact a doctor right away
Who should not take VIAGRA® or generic VIAGRA®?
Do not take VIAGRA® or generic VIAGRA® if you:
- Take any medicines called nitrates, often prescribed for chest pain, or guanylate cyclase stimulators like Adempas (riociguat) for pulmonary hypertension. Your blood pressure could drop to an unsafe level
- Are allergic to sildenafil, as contained in VIAGRA® and REVATIO®, or any of the ingredients in VIAGRA® or generic VIAGRA® tablets.
- Are a women or a child
When should I call my primary provider?
Call your primary provider right away if you:
- Have an erection that lasts longer than 4 hours
- Experience a sudden loss of vision in one or both eyes
- Experience a sudden decrease in or loss of hearing
- Experience chest pain, dizziness, or nausea during sex
- Take too much Viagra or sildenafil citrate
If you are experiencing a medical emergency, call 911 or seek immediate medical attention.
What are the most common side effects of VIAGRA® and generic VIAGRA®?
The most common side effects are:
- headache
- flushing
- upset stomach
- abnormal vision, such as changes in color vision (such as having a blue color tinge) and blurred vision
- stuffy or runny nose
- back pain
- muscle pain
- nausea
- dizziness
- rash
What should I tell my Roman-affiliated provider before taking VIAGRA® and generic VIAGRA®?
Before you take VIAGRA® or generic VIAGRA® , tell your healthcare provider if you:
- Have or have had heart problems such as a heart attack,irregular heartbeat, angina, chest pain, narrowing of the aortic valve, or heart failure
- Have had heart surgery within the last 6 months
- Have pulmonary hypertension
- Have had a stroke
- Have low blood pressure, or high blood pressure that is not controlled
- Have a deformed penis shape
- Have had an erection that lasted for more than 4 hours
- Have problems with your blood cells such as sickle cell anemia, multiple myeloma, or leukemia
- Have retinitis pigmentosa, a rare genetic (runs in families) eye disease
- Have ever had severe vision loss, including an eye problem called NAION
- Have bleeding problems
- Have or have had stomach or intestinal ulcers
- Have liver problems
- Have kidney problems or are having kidney dialysis
- Have any other medical conditions
Tell your healthcare provider about all the medicines you take, including prescription and over-the-counter medicines, vitamins, and herbal supplements.
VIAGRA may affect the way other medicines work, and other medicines may affect the way VIAGRA works, causing side effects.
Especially tell your healthcare provider if you take any of the following:
- Medicines called nitrates
- Medicines called guanylate cyclase stimulators such as Adempas® (riociguat)
- Medicines called alpha-blockers such as Hytrin® (terazosin HCl), Flomax® (tamsulosin HCl), Cardura® (doxazosin mesylate), Minipress® (prazosin HCl), Uroxatral® (alfuzosin HCl), Jalyn® (dutasteride and tamsulosin HCl), or Rapaflo® (silodosin). Alpha-blockers are sometimes prescribed for prostate problems or high blood pressure. In some patients, the use of VIAGRA® with alpha-blockers can lead to a drop in blood pressure or to fainting
- Medicines called HIV protease inhibitors, such as ritonavir (Norvir®), indinavir sulfate (Crixivan®), saquinavir (Fortovase® or Invirase®), or atazanavir sulfate (Reyataz®)
- Oral antifungal medicines, such as ketoconazole (Nizoral®) and itraconazole (Sporanox®)
- Antibiotics, such as clarithromycin (Biaxin®), telithromycin (Ketek®), or erythromycin
- Other medicines that treat high blood pressure
- Other medicines or treatments for ED
- VIAGRA® contains sildenafil, which is the same medicine found in another drug called REVATIO®. REVATIO® is used to treat a rare disease called pulmonary arterial hypertension (PAH). VIAGRA® should not be used with REVATIO® or with other PAH treatments containing sildenafil or any other PDE5 inhibitors (such as Adcirca [tadalafil])
Withholding or providing inaccurate information about your health and medical history in order to obtain treatment may result in harm, including, in some cases, death.
What is the FDA-approved use of VIAGRA® and generic VIAGRA®?
VIAGRA® (sildenafil citrate) is prescription medicine used to treat erectile dysfunction (ED).
Roman-affiliated doctors may prescribe VIAGRA® or generic VIAGRA® for the treatment of premature ejaculation (PE), if they believe in their medical judgment that it is an appropriate course of treatment. While this is not an FDA-approved use of the drug, the American Urological Association has included the use of sildenafil citrate in the treatment of PE in its Guideline on the Pharmacologic Management of Premature Ejaculation.
You are encouraged to report negative side effects of prescription products to the FDA. Visit www.fda.gov/medwatch or call 1-800-FDA-1088.
Please see the full Prescribing Information for complete safety information.
Product names referenced herein are trademarks of their respective owners.
Important Safety Information for Sildenafil (Revatio)
This Important Safety Information has been adapted from the Prescribing Information for REVATIO®.
What are the most important things I need to know about sildenafil 20 mg tablets?
- Discuss your health with your doctor to ensure that you are healthy enough for sex. If you experience chest pain, dizziness, or nausea during sex, seek immediate emergency medical attention.
- Sildenafil can cause serious side effects. Serious, but rare, side effects include:
- an erection that will not go away (priapism). If you have an erection that lasts more than 4 hours, seek emergency medical attention right away. If it is not treated right away, priapism can permanently damage your penis
- sudden vision loss in one or both eyes. Sudden vision loss in one or both eyes can be a sign of a serious eye problem called non-arteritic anterior ischemic optic neuropathy (NAION). Stop taking sildenafil and call your healthcare provider right away if you have any sudden vision loss
- sudden hearing decrease or hearing loss. Some people may also have ringing in their ears (tinnitus) or dizziness. If you have these symptoms, stop taking sildenafil and contact a doctor right away
Who should not take sildenafil?
Do not take sildenafil if you:
- Take any medicines called nitrates, often prescribed for chest pain, or guanylate cyclase stimulators like Adempas (riociguat) for pulmonary hypertension. Your blood pressure could drop to an unsafe level
- Are allergic to sildenafil, as contained in VIAGRA® and REVATIO®, or any of the ingredients in generic sildenafil citrate tablets.
- You’ve ever had blockage of veins in your lungs, which is called pulmonary veno-occlusive disease
- Are a women or a child
Sildenafil contains the same medicine as VIAGRA® (sildenafil citrate), which is used to treat erectile dysfunction (impotence) and REVATIO®, which is used to treat pulmonary hypertension. Do not take sildenafil with VIAGRA, REVATIO, or other PDE5 inhibitors.
When should I call my primary provider?
Call your primary provider if you:
- Have an erection that lasts longer than 4 hours
- Experience a sudden loss of vision in one or both eyes
- Experience a sudden decrease in or loss of hearing
- Take too much sildenafil citrate
If you are experiencing a medical emergency, call 911 or seek immediate medical attention.
What are the most common side effects of generic sildenafil citrate?
The most common side effects are:
- Headache
- Flushing
- Upset stomach
- Abnormal vision, such as changes in color vision (such as having a blue color tinge) and blurred vision
- Stuffy or runny nose
- Back pain
- Muscle pain
- Nausea
- Dizziness
- Rash
- Trouble sleeping
- Fever
- Respiratory infection
- Nausea
- Vomiting
- Bronchitis
- Pharyngitis
What should I tell my Roman-affiliated provider before taking sildenafil citrate?
Before you take sildenafil citrate, tell your healthcare provider if you:
- Have or have had heart problems such as a heart attack, irregular heartbeat, angina, chest pain, narrowing of the aortic valve, or heart failure
- Have had heart surgery within the last 6 months
- Have pulmonary hypertension
- Have had a stroke
- Have low blood pressure, or high blood pressure that is not controlled
- Have a deformed penis shape
- Have had an erection that lasted for more than 4 hours
- Have problems with your blood cells such as sickle cell anemia, multiple myeloma, or leukemia
- Have retinitis pigmentosa, a rare genetic (runs in families) eye disease
- Have ever had severe vision loss, including an eye problem called NAION
- Have bleeding problems
- Have or have had stomach or intestinal ulcers
- Have liver problems
- Have kidney problems or are having kidney dialysis
- Have any problem with the shape of your penis or Peyronie’s disease
- Have any other medical conditions
Tell your healthcare provider about all the medicines you take, including prescription and over-the-counter medicines, vitamins, and herbal supplements.
Sildenafil may affect the way other medicines work, and other medicines may affect the way sildenafil works, causing side effects.
Especially tell your healthcare provider if you take any of the following:
- Medicines called nitrates
- Medicines called guanylate cyclase stimulators such as Adempas® (riociguat)
- Medicines called alpha-blockers such as Hytrin® (terazosin HCl), Flomax® (tamsulosin HCl), Cardura® (doxazosin mesylate), Minipress® (prazosin HCl), Uroxatral® (alfuzosin HCl), Jalyn® (dutasteride and tamsulosin HCl), or Rapaflo® (silodosin). Alpha-blockers are sometimes prescribed for prostate problems or high blood pressure. In some patients, the use of VIAGRA® with alpha-blockers can lead to a drop in blood pressure or to fainting
- Medicines called HIV protease inhibitors, such as ritonavir (Norvir®), indinavir sulfate (Crixivan®), saquinavir (Fortovase® or Invirase®), or atazanavir sulfate (Reyataz®)
- Oral antifungal medicines, such as ketoconazole (Nizoral®) and itraconazole (Sporanox®)
- Antibiotics, such as clarithromycin (Biaxin®), telithromycin (Ketek®), or erythromycin
- Other medicines that treat high blood pressure
- K antagonists (like coumadin or warfarin)
- Other medicines or treatments for ED
- Sildenafil is the same medicine found in VIAGRA® and REVATIO®. REVATIO® is used to treat a rare disease called pulmonary arterial hypertension (PAH). VIAGRA® should not be used with REVATIO® or with other PAH treatments containing sildenafil or any other PDE5 inhibitors (such as Adcirca [tadalafil])
Withholding or providing inaccurate information about your health and medical history in order to obtain treatment may result in harm, including, in some cases, death.
What is the FDA-approved use of sildenafil citrate 20 mg tablets?
Sildenafil citrate 20 mg tablets are the generic version of REVATIO®, prescription medicine used to treat pulmonary hypertension. Sildenafil citrate is also the active ingredient in VIAGRA® (sildenafil citrate 25 mg, 50 mg, and 100 mg tablets), which is FDA approved to treat erectile dysfunction (ED).
Roman-affiliated doctors may prescribe sildenafil citrate 20 mg tablets for the treatment of ED or premature ejaculation (PE), if they believe in their medical judgment that it is an appropriate course of treatment.
Please see the Prescribing Information for complete safety information.
Product names referenced herein are trademarks of their respective owners.