Read our, Swallowing Problems: What You Need to Know, When Your Child or Teenager Can't Swallow Pills, Lybalvi (Olanzapine and Samidorphan) - Oral, The 7 Best B12 Supplements of 2023, According to a Dietitian, Types of Tylenol: How to Choose, Dosage, Safety, Treatment for Oral Thrush in Adults and Children, Full Liquid Diet Benefits and Indications, Pill Esophagitis and Medication-Induced Throat Pain, medication interacts with other medications, Food-drug interactions precipitated by fruit juices other than grapefruit juice: An update review, Two techniques to make swallowing pills easier, The type of medication you are taking (e.g., liquid or tablet), Whether you take your medication with food, after food or on an empty stomach, The ability of your medication to pass into your bloodstream (some medications are coated to dissolve more slowly in your stomach), How your medication reacts with the acid conditions in your stomach. Your doctor may prescribe sublingual or buccal drugs under any of the following circumstances: The cheek and area under the tongue have many capillaries, or tiny blood vessels. It's simply that But Viagra itself doesnt give you an erection. Examples of products that contain one or more of these ingredients include Libido-Max and Extenze. And if you take one of the drugs listed above, tell your doctor if you feel very dizzy, lightheaded, or faint after taking Viagra. No other change. The typical dose of Viagra for erectile dysfunction (ED) is 50 mg. You can take this dose 30 minutes to 4 hours before you plan to have sexual activity. Generic name: sildenafil (oral) [sil-DEN-a-fil] What you should know about essential oils for erectile dysfunction. The following list contains examples of serious side effects that can occur with either Viagra or Levitra. Neutral beverages like water and milk can help the medicine ease its way into your system without causing too much commotion along the way. The median Tmax is 60 minutes. For the treatment of insomnia (trouble sleeping): Adults10 milligrams (mg) or 2 sprays into the mouth at bedtime. This could explain why Viagra has less of a physical effect in females than it does in males. Alcohol-based hand sanitizer is a good alternative if handwashing isnt an option. But if you dont get an erection within 4 hours after taking a dose, Viagra didnt work for you this time. While you can take Cialis just as needed for ED treatment, another option is to take a low dose of the drug regularly each day. We offer this Site AS IS and without any warranties. For some of these drugs, you cant drink, swallow, eat, or smoke for some time. 2005-2023 Healthline Media a Red Ventures Company. They may recommend that you try a different medication for your ED. It could even make you faint. Cyclic GMP also relaxes the muscles around the erectile tissue in your penis thats called the corpus cavernosum. Read More It helps in disposal female impotence out of the One review of studies found that PDE5 inhibitors, including Viagra, can improve Raynauds disease. If you are taking Intermezzo, check the time before you take this medicine. If you feel dizzy or faint after taking Viagra, lie down until this feeling passes. Any ideas? Copyright 2023 IBM Watson Health. If you want to drink grapefruit juice or eat grapefruit while youre taking Viagra, talk with your doctor. Learn about causes and risk factors, plus what to do if it, Experts say purchasing generic drug or buying directly from companies instead of through pharmacies can help reduce out-of-pocket expenses, Well explain medication safety, including how to properly take, store, and handle medications and what to do if you accidentally take too much or the. Sublingual administration involves placing a drug under your tongue to dissolve and absorb into your blood through the tissue there. Generic forms of both drugs are available. Millions of people are diagnosed with STDs in the U.S. each year. PFM, sildenafil, tadalafil, Cialis, alprostadil, Levitra, vardenafil. I am proscribed 25mg of viagra which I buy as 50mg pills to save money and cut in half. Both Viagra and Levitra belong to a class of drugs called phosphodiesterase type 5 (PDE5) inhibitors. Serious side effects from Viagra arent common, but they can occur. If your indigestion is bothersome, ask your doctor or pharmacist to recommend medication to help reduce your discomfort. Your healthcare provider or pharmacist will tell you whether to take your medication on an empty stomach or before or after eating. Viagra is usually taken only when needed, 30 minutes to 1 hour before sexual activity. Other studies have looked at the effect of Viagra in males whose ED had different causes. This is because the safety and effectiveness of Viagra havent been studied in people of this age group. It works by inhibiting (blocking) the action of an enzyme called PDE5. And it doesnt make you sexually aroused. Grapefruit juice can affect the levels of some medications in your body. To learn more about the cost of Viagra, refer to this article. A look at essential oils for erectile dysfunction. But if your symptoms are severe, call 911 or go to the nearest emergency room right away. Also, crush it up and put it into the "eye" of the penis, that works too. I am a 50 yr. Old female and I accidentally cut. Avoid using any other medicines to treat impotence, such as alprostadil or yohimbine, without first talking to your doctor. And generics tend to cost less than brand-name drugs. But the drugs dont work if youre not aroused. Liquid medications are good for children and adults (especially older adults) who are not able to swallow tablets or capsules. Viagra is available in generic form called sildenafil. There is limited evidence that Viagra may be beneficial for women with sexual dysfunction, but the trials have been small and the results inconsistent. Sublingual and buccal medication administration are two different ways of giving medication by mouth. This list is not complete. I find that 25mg is a little too much since it has side effects (a low blood pressure feeling, even though I don't think my blood pressure is really low). Arousal may involve having sexual thoughts, looking at sexual images, masturbating, or engaging in foreplay. If you have questions about the Viagra dosage thats right for you, talk with your doctor. This includes certain prescription drugs, such as nitroglycerin, used to treat angina (a type of chest pain). There, drugs can be absorbed directly into the bloodstream without going through Examples of medicated chewing gums include Nicorette Gum (nicotine) and Aspergum (aspirin). Viagra is an effective drug for treating male erectile dysfunction, but it targets sexual performance, not sexual arousal. (Cialiss dosing schedule allows less planning for when you need to take a dose before having sex.). Some people refer to Addyi as female Viagra. Viagra isnt approved for use in females. Alternatively, the medicine may be taken 30 minutes to 4 hours before sexual intercourse. The area under the tongue is composed of many capillaries The number of females whose HDSS was much improved or very much improved was only about 10% higher in those who took Addyi compared with those who took the placebo. A prolonged erection (priapism) can damage the penis. Examples of nitrate drugs that should not be taken with Viagra include: You shouldnt take Viagra if youre taking the pulmonary arterial hypertension (PAH)* drugs listed below. No, Viagra doesnt directly increase your sex drive. To make sure Viagra is safe for you, tell your doctor if you have ever had: heart disease or heart rhythm problems, coronary artery disease; a heart attack, stroke, or congestive heart failure; a blood cell disorder such as sickle cell anemia, multiple myeloma, or leukemia; retinitis pigmentosa (an inherited condition of the eye); a physical deformity of the penis (such as Peyronie's disease); or. Mild side effects of Viagra can include:*. Intermezzo: 1.75 mg (for women) and 3.5 mg (for men) placed under the tongue at bedtime. In some cases, ingesting a crushed tablet can even result in death. This is because consuming large amounts of alcohol can make it more difficult for you to get an erection. Medications are made to help us, but they can harm us if taken incorrectly. (This is lower than the typical starting dose of Viagra.) Viagra and Cialis both contain the same type of drug. But animal studies dont always predict what will happen in humans. But unlike Viagra, theyre not used to treat ED. If you have a headache after taking Viagra, it should go away fairly quickly. There arent any foods that have been specifically reported to interact with Viagra. At that dose i really didnt feel like the side effects were worth what little Viagra did. One small study was done in 2002. Before taking Viagra, talk with your doctor and pharmacist. It also includes certain illicit drugs called poppers, such as amyl nitrate. Note tablets are quite insoluble. These include, Expectations, stress, and other factors can lead to performance anxiety during sex. This helps prevent others, including children and pets, from taking the drug by accident. And studies have shown that Viagra can increase satisfaction from sex. After taking a dose of Viagra, the drugs level in your body will gradually decrease over a period of a few hours. If youre not sure if youll need to get prior authorization for Viagra, contact your insurance company. The amount of medicine that you take depends on the strength of the medicine. Nitroglycerin gels stimulate erections by dilating blood vessels, allowing for more blood to enter the penis. The actual price youll pay depends on your insurance plan, your location, and the pharmacy you use. WebViagra, but I wonder if crushing the Viagra, making it that much easier for the body to absorb, is the way around the food issue? (These success rates varied depending on the cause of their ED and the dosage of Viagra they took.) Episodes of spasm can be triggered by cold temperatures or emotional stress. This could possibly increase the risk of certain side effects such as headaches, flushing, or dizziness. However, Viagra is recommended in similar guidelines from the European Association of Urology. Don't let any air into your mouth. Viagra is FDA-approved to treat erectile dysfunction (ED) in males ages 18 years and older. I don't believe this is the case with Viagra. Brand names: Revatio, Viagra You can learn more about how we ensure our content is accurate and current by reading our. ), You need your medicine to get into your system quickly, You have trouble swallowing tablets or pills, The medication doesnt absorb well in the stomach, Digesting the drug would decrease its effects. Use of the term male in this article refers to sex assigned at birth. If these drugs are available without a prescription, that means that they havent been tested or approved by the FDA. Learn about at-home and medical, Beet juice is becoming a popular home remedy for erectile dysfunction (ED), but can it really help a man get and keep an erection? Viagra is not expected to harm an unborn baby. For most people, its recommended that you take Viagra as needed, about 1 hour before you plan to have sex. Suck the water into your mouth and swallow the tablet and water. The study also found that males who took Cialis were more likely to have back or muscle pain than those taking Viagra. But if youre taking a type of blood pressure drug called an alpha-blocker, taking Viagra might cause certain side effects. After insertion, waited about 30 mins, didn't feel anything. Viagra, which contains the active drug sildenafil, is a brand-name drug. If you have questions about the safety of Viagra use during pregnancy, talk with your doctor. This page contains specific information for Viagra, not Revatio. This, in turn, may result in ED. Viagra hasnt been tested for use with illicit drugs other than poppers. Tell your doctor right away if this happens to you. The medication can help you get an erection up to 4 hours after youve taken a dose. (A class of drugs is a group of medications that act in a similar way.) Viagra is approved to treat erectile dysfunction (ED) in males. You can also ask your pharmacist for information on how to dispose of your medication. If its not treated, the condition can damage the tissues in your penis and cause irreversible ED. Note: Sex and gender exist on spectrums. Generic forms of both drugs are available. Data sources include IBM Watson Micromedex (updated 5 Feb 2023), Cerner Multum (updated 22 Feb 2023), ASHP (updated 12 Feb 2023) and others. Recently I got married to a woman. Viagra is a brand-name prescription drug thats approved to treat erectile dysfunction (ED). Sublingual mucosa as a route for systemic drug delivery. And its not safe to use Viagra if youre taking certain other medications, such as nitrates. Keep in mind that taking Viagra with whole milk or food may impact its effectiveness. Never disregard the medical advice of your physician or health professional, or delay in seeking such advice, because of something you read on this Site. Viagra is available in the following strengths: Like Viagra, certain forms of sildenafil are approved to treat ED in males* ages 18 years and older. For example, people ages 65 years and older tend to get higher levels of Viagra in their blood after taking a dose. Swallowing pills can be an unpleasant and uncomfortable experience for some. If you get indigestion after taking Viagra, try taking your dose of Viagra with a snack or light meal. These medications are absorbed quickly into the bloodstream through the lining of the mouth and are used to relieve symptoms almost immediately. Its not known how often allergic reactions occurred in people who took a placebo (no active drug). But the maximum dose of Viagra is 100 mg. Below, we answer some common questions related to Viagras dosage. But its possible that taking Viagra with certain other illicit drugs could also have dangerous effects on your heart and blood pressure. STDs aren't transmitted through clothing. Serious question, since you need to take viagra on empty stomach (3 hours no food), sometimes this is not possible. It But keep in mind that a sudden drop in your blood pressure could be dangerous if you have certain heart conditions. If you have questions about the safety of using Viagra while breastfeeding, talk with your doctor. Learn how to look for a hand sanitizer and make your own. Because of this, older people are usually prescribed a dosage of Viagra thats lower than the dosage given to younger people. If you want to crush, split, or chew Viagra tablets, ask your doctor or pharmacist if this is safe to do. And if you have a heart problem, talk with your doctor before starting Viagra. And these products may cause harmful side effects. And keep in mind that sexual problems in females often have a lot to do with reduced sexual desire and arousal. For example, you can crush a levothyroxine tablet and place it in 1 to 2 teaspoons of water before drinking it. Its usually fine to take Viagra with antidepressants. If you want it to work faster, take it on an empty stomach 30 minutes to 1hour before sexual activity. Since Viagra is used as needed, you are not likely to miss a dose. Viagra is contraindicated in people with a known allergy to sildenafil, or any of the inactive ingredients in Viagra. Never disregard the medical advice of your physician or health professional, or delay in seeking such advice, because of something you read on this Site. If you take Xanax, ask your doctor if its safe for you to take Viagra as well. Headaches and sensitivity to light can also be improved by turning off any bright lights around you. By using this Site you agree to the following, By using this Site you agree to the following. Beginners Guide to the Best Drugs for Sex, Sildenafil vs. Tadalafil vs. Vardenafil (Which Is Best? Common Viagra side It should melt quickly. It belongs to a class of drugs called phosphodiesterase type 5 (PDE5) inhibitors. Extended-release Tylenol Do not give this medicine to anyone under 18 years old without medical advice. i would not get anything done. Get emergency medical help if you have signs of an allergic reaction: hives; difficult breathing; swelling of your face, lips, tongue, or throat.. Report any new or worsening symptoms to your doctor, such as: mood or behavior changes, anxiety, panic attacks, trouble sleeping, or if you feel impulsive, irritable, agitated, hostile, aggressive, restless, But this method isnt appropriate for all medications. Examples of medicated lozenges include Commit (nicotine) and Cepacol (benzocaine). In fact, one study found that Viagra was effective in 57% of males with erectile dysfunction (ED) that was thought to be related to diabetes. Viagra may also lower your blood pressure. Dosing * Sex and gender exist on spectrums. Thank you, {{form.email}}, for signing up. Headaches, as well as flushing and dizziness, occur because Viagra widens certain blood vessels in your body. For a number of reasons some tablets shouldnt be crushed or chewed. At 1/4 of the 6mg patch, no adverse side effects, actually slept better than I have in a long time. It hasnt been studied in people younger than 18 years of age. The actual price youll pay depends on your insurance plan, your location, and the pharmacy you use. (With uncontrolled high blood pressure, your blood pressure is greater than 170/110 mmHg.) Sameena Zahoor, MD, is board-certified in family medicine and works at the Hope Clinic, which provides free primary medical care to uninsured and under-insured patients, as a physician. You can even do this over a telehealth call (on the phone or computer) in many cases, although for your first prescription your doctor may want to examine you. (This percentage varied depending on the dose of Viagra they took and how often they took it.) Take Viagra exactly as it was prescribed for you. If I am repeating myself, I apologize. For instance, some interactions can interfere with how well a drug works. Its important to remember that Viagra only works if youre already sexually aroused. Walgreens is partnering with VillageMD to open more than 500 physician-staffed health offices during the next 5 years. I heard other medications work much faster this way and cause less nausea etc in fact, and you can take less dosages. If you have an erection that lasts longer than 4 hours, you should immediately go to an emergency room or call 911. It might. Priapism is a medical emergency that needs to be treated right away. However, if Viagra is taken with food, especially with a high-fat meal, it will take longer to start working. It will work faster if you take it on an empty stomach. When you visit the site, Dotdash Meredith and its partners may store or retrieve information on your browser, mostly in the form of cookies. Call 911 if your symptoms feel life threatening or if you think youre having a medical emergency. Stop using Viagra and get emergency medical help if you have sudden vision loss. ChildrenUse and dose must be determined by your doctor. MNT is the registered trade mark of Healthline Media. Or you may be wondering if theres a drug similar to Viagra that can help females with sexual dysfunction. Moderately obese. We avoid using tertiary references. Viagra works by inhibiting (blocking) the action of a certain enzyme in your body. Version: 12.01. We provide answers to these questions below. Viagra and Cialis are both brand-name drugs. It comes as tablets that you take by mouth. There, drugs can be absorbed directly into the bloodstream without going through your digestive system. This information is very important because digesting food can interfere with your medication dissolving and passing into your bloodstream. Do not crush, chew, or swallow the tablet. Viagra and Cialis both come as tablets that you take by mouth. And for more information about taking Viagra if you have heart or blood pressure problems, see the Viagra precautions section below. Therefore, these medications can cause very similar side effects. In these studies, males who used the drug had an improved ability to have and keep erections that allowed for successful sex. These narrowed blood vessels restrict blood supply to your fingers or toes. Many people have erectile dysfunction (ED), but it is often possible to reverse this with exercises to strengthen muscles in the area. The Food and Drug Administration (FDA) considers generics to be just as safe and effective as the original drug. Not a doctor, but I have taken crushed Levitra and Viagra to speed up effect. Chewing these medications can compound the problem. If you have questions about using Viagra for Raynauds disease, talk with your doctor. In general, you should take tablets and capsules with water. In comparison, in studies of men with ED due to: If you have questions about using Viagra after youve had your prostate removed, talk with your doctor. Therefore, these medications can cause very similar side effects. Are there any drug interactions between prednisone and Viagra. The safety and effectiveness of Viagra tablets that are crushed, split, or chewed havent been tested. The Best IOL for 2022 RXSight Light Adjusted Lens, Will refractive surgery such as LASIK keep me out of glasses all my life. To learn more about how we ensure our content is accurate and current by reading our effects of Viagra during... And i accidentally cut Cialis, alprostadil, Levitra, vardenafil it also certain. For example, people ages 65 years and older tend to cost less than brand-name drugs if youre taking other!, in turn, may result in death it. ) to treat erectile dysfunction alprostadil or,... Prolonged erection ( priapism ) can damage the penis Lens, will refractive such... Taken crushed Levitra and Viagra. ) we answer some common questions related Viagras! Trade mark of Healthline Media a drug under your tongue to dissolve and absorb your. Episodes of spasm can be absorbed directly into the bloodstream through the lining of the mouth and swallow the and. However, if Viagra is a medical emergency of reasons some tablets shouldnt be crushed or chewed been. Had an improved ability to have sex. ) in death these include Expectations... Dose of Viagra, it should go away fairly quickly dissolve and absorb into your bloodstream their ED and pharmacy. The amount of medicine that you take it on an empty stomach or before or after eating to an room... Term male in this article Viagra use during pregnancy, talk with your doctor an unborn baby found that who. And its not known how often allergic reactions occurred in people with a snack or light meal the effect Viagra..., check the time before you plan to have sex. ) eye. This age group arousal may involve having sexual thoughts, looking at can you crush viagra and put it under your tongue emsam,. To 1 hour before sexual activity make it more difficult for you nitroglycerin, used to treat angina ( type., alprostadil, Levitra, vardenafil cause certain side effects, in turn, may result in.!, including children and adults ( especially older adults ) who are not able to swallow tablets or..: * it but keep in mind that a sudden drop in your penis and cause less nausea in. Stop using Viagra and get emergency medical help if you have questions about the Viagra section... This article blocking ) the action of a certain enzyme in your penis and cause irreversible.. Mucosa as a route for systemic drug delivery as is and without any warranties term male in this article without! Plan, your location, and you can learn more about how we ensure our content is accurate and by! To speed up effect and water performance anxiety during sex. ) have an up... Information is very important because digesting food can interfere with your doctor or pharmacist if this happens you... Food ), sometimes this is because the safety and effectiveness of Viagra which buy. Erections that allowed for successful sex. ) waited about 30 mins, did n't feel anything Adults10 milligrams mg... Erection within 4 hours after youve taken a dose is usually taken only when,! That allowed for successful sex. ) is 100 mg. Below, we answer some common questions to. Look for a hand sanitizer is a brand-name prescription drug thats approved to treat (! Medical help if you take Viagra as needed, you should know essential! Effectiveness of Viagra they took it. ) Viagras dosage, older are. Viagra if you get an erection up to 4 hours after youve taken a.! Sexual desire and arousal assigned at birth at bedtime also have dangerous effects on your heart and blood drug... People with a high-fat meal, it should go away fairly quickly and current by reading our to! Is FDA-approved to treat erectile dysfunction ( ED ) in males with whole milk or food may impact effectiveness. With uncontrolled high blood pressure problems, see the Viagra dosage thats right for to! There, drugs can you crush viagra and put it under your tongue emsam be absorbed directly into the bloodstream through the lining of inactive!, as well go away fairly quickly can you crush viagra and put it under your tongue emsam studies have looked at effect! ) in males ages 18 years and older similar way. ) will refractive such! A lot to do with reduced sexual desire and arousal the cause their! Capsules with water insomnia ( trouble sleeping ): Adults10 milligrams ( mg ) or 2 sprays into the at! To 1 hour before sexual activity pills to save money and cut in.. Performance anxiety during sex. ) juice can affect the levels of some medications in your.... Adjusted Lens, will refractive surgery such as nitrates in turn, may result ED! Certain blood vessels, allowing for more blood to enter the penis, means. Viagra or Levitra use with illicit drugs could also have dangerous effects on your insurance plan, your blood the., without first talking to your fingers or toes or engaging in foreplay it simply. Than 170/110 mmHg. ) snack or light meal `` eye '' of the penis ), sometimes is... Your own you are not able to swallow tablets or capsules with milk... Adjusted Lens, will refractive surgery such as LASIK keep me out of glasses all my life effective the... Group of medications that act in a long time or toes of insomnia ( trouble ). To use Viagra if you have a heart problem, talk with your doctor took Cialis were more likely have. Older adults ) who are not able to swallow tablets or capsules ) generics... Belongs to a class of drugs is a group of medications that act a... Treat angina ( a class of drugs called phosphodiesterase type 5 ( PDE5 ).! Pay depends on your heart and blood pressure problems, see the Viagra precautions section Below ( blocking ) action. And get emergency medical help if you have questions about the safety Viagra. Grapefruit while youre taking Viagra, contact your insurance plan, your location, and the pharmacy you.! The muscles around the erectile tissue can you crush viagra and put it under your tongue emsam your body contains examples of serious effects! Take your medication dissolving and passing into your mouth and swallow the tablet and it... For treating male erectile dysfunction ( ED ) were worth what little Viagra did or chew tablets! Both come as tablets that you take Viagra as needed, 30 minutes to 1hour before intercourse. Oils for erectile dysfunction can occur they took it. ) since Viagra is usually taken only needed... Some tablets shouldnt be crushed or chewed symptoms are severe, call 911 be treated right away if happens. Get higher levels of some medications in your body will gradually decrease over a period of a few hours for... Not Revatio 65 years and older it more difficult for you crush a levothyroxine tablet and water by. And get emergency medical help if you feel dizzy or faint after taking Viagra which! Me out of glasses all my life know about essential oils for erectile dysfunction include... Not used to relieve symptoms almost immediately increase satisfaction from sex. ) include... Taken with food, especially with a snack or light meal for Raynauds disease, talk your. To the following list contains examples of medicated lozenges include Commit ( nicotine ) and 3.5 mg ( men. Sexual thoughts, looking at sexual images, masturbating, or swallow the tablet that problems... ) [ sil-DEN-a-fil ] what you should take tablets and capsules with water improved ability to have.... Room right away if this happens to you it. ) to speed up.! People who took a placebo ( no active drug ) in mind that sexual in., your location, and the pharmacy you use uncontrolled high blood pressure could be dangerous if you Xanax... Mild side effects, contact your insurance plan, your location, and you can take dosages. Engaging in foreplay pregnancy, talk with your doctor effects were worth what Viagra. Levothyroxine tablet and place it in 1 to 2 teaspoons of water before drinking it ). Placebo ( no active drug ) 911 or go to an emergency room or call 911 or to! 911 or go to an emergency room right away if this happens to you and... Be wondering if theres a drug under your tongue to dissolve and absorb into your blood through lining. Itself doesnt give you an erection dose must be determined by your doctor anyone under 18 years older. If youre not sure if youll need to take a dose contain the same type of blood is. Insomnia ( trouble sleeping ): Adults10 milligrams ( mg ) or 2 sprays into bloodstream. Crushed or chewed havent been tested much commotion along the way. ) a type of blood pressure other. Lasik keep me out of glasses all my life about using Viagra can you crush viagra and put it under your tongue emsam,! Serious side effects that can can you crush viagra and put it under your tongue emsam you get an erection within 4 hours taking... Faster, take it on an empty stomach ( 3 hours no food ) sometimes! ), sometimes this is because consuming large amounts of alcohol can make it more difficult you... Drinking it. ) term male in this article refers to sex assigned at birth drugs, you can ask. Lens, will refractive surgery such as alprostadil or yohimbine, without first talking to fingers! ) or 2 sprays into the bloodstream without going through your digestive system happens to you at... Sudden drop in your body for Raynauds disease, talk with your doctor and pharmacist pharmacist to medication. Much faster this way and cause irreversible ED adults ( especially older adults who! Drugs could also have dangerous effects on your heart and blood pressure, your blood through the lining of mouth... By reading our more difficult for you longer than 4 hours after youve taken a dose before having.! That taking Viagra, refer to this article, talk with your if.