This test can check whether it's working right. Usually, men have three to five erections during the night as they sleep. Your doctor may use an overnight erection test to see whether you're able to get an erection. For this test, you will place a device around your penis before you go to sleep.

Ingredient Type Function Typical Dosage (mg)
Sildenafil PDE5 Inhibitor Enhances blood flow to the penis 50-100
Tadalafil PDE5 Inhibitor Long-lasting erection support 10-20
Vardenafil PDE5 Inhibitor Rapid onset action 10-20
Yohimbine Alkaloid Increases blood circulation 5-15
L-Arginine Amino Acid Boosts nitric oxide production 300-600

It measures how many erections you have and how strong they are. A simpler version of this test uses a special plastic ring around your penis.

Why is this medication prescribed?

Bring this list with you each time you visit a doctor or if you are admitted to the hospital. You should carry the list with you in case of emergencies. Although the term “ED” is often associated with a complete inability to get an erection sufficient for sex, the reality of erectile dysfunction is that it can vary hugely in severity. Can get a normal erection, but find it difficult to maintain it during sex Can get a normal erection, but find it difficult to maintain it during sex Find it difficult to get an erection every time you want to have sex Find it difficult to get an erection every time you want to have sex Can’t get an erection at all, even when you’re sexually stimulated Can’t get an erection at all, even when you’re sexually stimulated A Hims medical provider will help determine which treatment is most appropriate for you. All of the active ingredients in our treatments are approved by the FDA based on extensive, high-quality clinical trials.

The mental side of sex

These trials have uniformly demonstrated that ED medications are safe and effective for the vast majority of men. Learn more in our guide to the safest drug for erectile dysfunction.Our guide on how to know if you have ED goes more into detail about common signs that you’re affected by erectile dysfunction. Most ED medications take 15 min to 1 hour to “kick in” and start producing a noticeable effect on your ability to develop and maintain an erection, so make sure you’re timing your specific dosage accordingly. While you may experience side effects from your medication, most are mild and temporary. Your body may just need some time to get used to the effects of ED medication, so give it a few tries before making any adjustments. If you get an erection, the ring breaks. If the test shows that you can get erections, it's more likely that your ED is caused by something mental or emotional. An injection test is also called an intracavernosal test. Your doctor injects a medicine into the base of your penis, which should give you an erection. If you don't get one, you may have a problem with blood flow to your penis.

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Sometimes called Doppler ultrasound, this is another way to check blood flow to the penis.

Why trust our experts?

If you experience a sudden loss of hearing, sometimes with ringing in the ears or dizziness, while you are taking sildenafil, call your doctor immediately. If you are taking sildenafil (Viagra) for erectile dysfunction, do not take any more doses of sildenafil (Viagra) or similar medications such as tadalafil (Cialis) or vardenafil (Levitra) until you talk to your doctor. If you are taking sildenafil (Liqrev, Revatio) for PAH, do not stop taking your medication until you talk to your doctor. Call your doctor if you have any unusual problems while you are taking this medication. If you experience a serious side effect, you or your doctor may send a report to the Food and Drug Administration's (FDA) MedWatch Adverse Event Reporting program online ( or by phone (1-800-332-1088).

The best place to get medications for ED

Keep this medication in the container it came in, tightly closed, and out of reach of children. Store the tablets at room temperature and away from excess heat and moisture (not in the bathroom). Store the suspension at room temperature or in a refrigerator, but do not freeze it. Dispose of any unused suspension after 60 days. Keep all medication out of sight and reach of children as many containers are not child-resistant. It may be used along with the injection test.

  • Many men find tablets effective in restoring erectile function.
  • Psychological support can enhance the success of medication.
  • Beware of counterfeit medications which can be dangerous.
  • Always obtain these tablets through licensed pharmacies.
  • Combining ED tablets with other treatments can improve outcomes.
  • ED tablets are not aphrodisiacs and do not increase libido.
  • Regular checkups help monitor underlying health conditions.
  • Overuse or misuse can lead to persistent side effects or dependence.

Your doctor takes a device that looks like a wand and holds it over your penis. It uses sound waves to create a video of your blood vessels so your doctor can look at blood flow. If it looks more likely that a mental or emotional issue is the source of the problem, your doctor will ask you standard questions about your mental well-being. These questions help them check for depression, anxiety, and other common causes of erectile dysfunction.

Condition Rationale Notes
Use of nitrate medications Risk of severe hypotension Examples include nitroglycerin
Severe cardiovascular disease Potential for cardiac stress Consult doctor advised
Prior eye conditions Risk of vision loss Such as non-arteritic ischemic optic neuropathy
Allergy to active ingredients Allergic reactions Check ingredient list
Severe liver or kidney impairment Metabolism and excretion issues Consult healthcare provider

If you have a regular sexual partner, your doctor may ask to talk to the two of you together. Your doctor may tell you to make some day-to-day adjustments. Stop any tobacco or illegal drug use. Lose weight if you are overweight or have obesity.

What Lifestyle Changes Can Help With Erectile Dysfunction?

Place the medication in a safe location – one that is up and away and out of their sight and reach. Dispose of unneeded medications in a way so that pets, children, and other people cannot take them. Do not flush this medication down the toilet. Talk to your pharmacist about take-back programs in your community. Visit the FDA's Safe Disposal of Medicines website for more information.

Can you use baking soda for erectile dysfunction treatment?

In case of overdose, call the poison control helpline at 1-800-222-1222. Information is also available online at If the victim has collapsed, had a seizure, has trouble breathing, or can't be awakened, immediately call emergency services at 911. Do not let anyone else take your medication. Ask your pharmacist any questions you have about refilling your prescription. Keep a written list of all of the prescription and nonprescription (over-the-counter) medicines, vitamins, minerals, and dietary supplements you are taking. Lower your cholesterol and blood pressure levels. If a medication is causing your ED, your doctor may lower your dose or try a different drug. If anxiety or stress is causing your ED, it may help to talk to a professional therapist. Life-changing problems or even everyday stress can trigger erectile dysfunction.

Counseling for Erectile Dysfunction

They may also look for hair loss and larger-than-normal breasts. Both of these can be signs that you have a hormone problem. Check your pulse at your wrists and ankles to see whether your blood flow is normal Based on your physical exam as well as your medical and sexual history, your doctor may want to order certain blood or urine tests. They'll use these to check for problems that can lead to ED, such as: Thyroid health is also checked with a type of blood test. Your thyroid helps with the flow of sex hormones. Talking about these things with a licensed therapist can ease sexual anxiety and help you feel more confident in your relationship. You may want to include your partner in these sessions as well. ED medicines can be pills, drugs inserted into the tip of the penis, or shots into the penis. The first things doctors usually prescribe to people with erectile dysfunction are pills such as: They are taken anywhere from 15 minutes to 36 hours before having sex, depending on the drug.

What side effects can this medication cause?

The vision loss was permanent in some cases. It is not known if the vision loss was caused by the medication. If you experience a sudden loss of vision while you are taking sildenafil, call your doctor immediately. Do not take any more doses of sildenafil or similar medications such as tadalafil (Cialis) or vardenafil (Levitra) until you talk to your doctor. There have been reports of heart attack, stroke, irregular heartbeat, bleeding in the brain or lungs, high blood pressure, and sudden death in men who took sildenafil for erectile dysfunction.

FYI on ED

Most, but not all, of these people had heart problems before taking sildenafil. It is not known whether these events were caused by sildenafil, sexual activity, heart disease, or a combination of these and other causes. Talk to your doctor about the risks of taking sildenafil. Some patients experienced a sudden decrease or loss of hearing after they took sildenafil or other medications that are similar to sildenafil. It is not known if the hearing loss was caused by the medication. You shouldn't use these more than once a day. These pills work for about 80% of those who take them. But if your erection lasts more than four hours, seek emergency medical help. In rare cases, a temporary blue-green shading of your vision You shouldn't take these pills if you take nitrate drugs for heart disease. Doing so can cause a dangerous drop in blood pressure.

Medication Success Rate (%) Average Onset (minutes) Duration (hours)
Sildenafil 70 30-60 4-6
Tadalafil 75 30 Up to 36
Vardenafil 68 25-60 4-5
Avanafil 80 15-30 6-12

Also use caution if you're taking alpha-blockers for prostate problems or blood pressure.

When oral medications might not be safe

The reason is simple: They want to better understand how ED affects you and see whether there might be a clear cause for it. When you talk about past surgeries, the medicines you take, injuries, and lifestyle choices, your doctor can learn about diseases or other issues you might have that could lead to ED. By asking about your sexual history — your relationships, sex drive, if you ever get erections — they can begin to figure out whether the issue is more likely to be physical or mental. They can't help you if you withhold information. Your doctor will check your penis and testicles to make sure they seem normal and their nerves work as expected. Tell your doctor about all medications you're taking, including any over-the-counter drugs, herbs, and supplements. If the pills don't work or aren't safe for you to take, your doctor may prescribe a drug called alprostadil. It helps boost blood flow to the penis, triggering an erection within minutes. It can be given in two ways: The medication is put into the side of the penis by a needle. This raises your risk for dangerously prolonged erections and scarring.

What should I do if I forget a dose?

If you think you have erectile dysfunction, or ED, a good first step is to talk with your doctor. The treatment you need will depend on what's causing it. And to find the cause, your doctor premature ejaculation pills may ask you to take some tests. Or they may refer you to a doctor called a urologist, who can diagnose and treat conditions such as ED that affect the reproductive organs. This one's not actually a test, but your doctor will likely ask you questions about your medical and sexual history. You may hear this procedure called MUSE (medicated urethral system for erections).

  • Natural alternatives include herbal supplements like ginseng and L-arginine.
  • Psychological factors like stress can affect tablet effectiveness.
  • Proper diet and exercise can improve erectile response over time.
  • Avoid excessive alcohol consumption when taking these tablets.
  • These medications do not increase sexual desire, only performance.
  • Some tablets are available over-the-counter in certain regions.
  • Always follow dosage instructions to minimize risks.
  • Use caution if you have cardiovascular conditions.

This may be less successful than shots.