Finding out is often a trial-and-error approach.

What special precautions should I follow?

But for the drugs to work, you need to be sexually aroused. Take some time to get into the mood. Use all of your senses to get turned on. Pay attention to this: Don't take ED drugs if you also take heart medicines called nitrates. The combination can cause a dangerous drop in your blood pressure. Many doctors first prescribe Viagra because it has been around the longest and has a high success rate. If one drug doesn't work after a predetermined period, your doctor may increase the dosage or prescribe one of the others.

Product Dosage Quantity + Bonus Price
Cialis Original20mg14 + 2 Pills95.75€ 91.19€
Viagra Original100mg14 + 2 Pills89.03€ 84.79€
Kamagra 100 mg100 mg20 Pills86.09€ 81.99€
Cialis Original20mg48 + 4 Pills224.69€ 213.99€
Tadalista Super Active20mg120 + 16 Pills382.15€ 363.95€
Kamagra Gold50 mg32 Pills103.06€ 98.15€
Cialis Soft Tabs20mg20 + 2 Pills66.98€ 63.79€
Levitra Generic60mg30 + 2 Pills109.43€ 104.22€
Kamagra Gold100 mg60 + 4 Pills201.34€ 191.75€
Levitra Original20mg22 + 2 Pills138.55€ 131.95€
Viagra Professional100mg270 + 6 Pills456.97€ 435.21€
Kamagra 100 mg100 mg120 + 6 Pills330.74€ 314.99€
Cialis Generic2.5mg20 Pills40.73€ 38.79€
Viagra Super Active100mg360 + 30 Pills470.93€ 448.50€
Cialis Original20mg76 + 4 Pills319.19€ 303.99€
Levitra Original20mg34 + 2 Pills188.51€ 179.53€

Sometimes, you have to try all of them before knowing whether ED drugs work for you.

How should this medicine be used?

To make sure you stay safe, talk to your doctor about all of the medications you take. Erectile dysfunction (ED) drugs are more readily available than ever before, and in general, men have gotten past any stigma about needing them. Yet many men still approach ED drugs the wrong way. Men feel their sex life is not good and see an ED drug as an easy, quick-fix solution. But more times than not, there are underlying issues at play that a pill can't help. An ED drug kicks in within 15 minutes to an hour after you take it and can last anywhere from four to five hours up to 24 hours or longer depending on the drug.

  • Headache: A common side effect of vasodilators like PDE5 inhibitors.
  • Flushing: Redness and warmth of the face and upper body due to vasodilation.
  • Dyspepsia: Indigestion or upset stomach, common with sildenafil.
  • Nasal congestion: A stuffy or runny nose due to vasodilation in sinuses.
  • Myalgia: Muscle aches, a side effect more commonly associated with tadalafil.
  • Back pain: A side effect more commonly associated with tadalafil.
  • Visual changes: A blue tinge (cyanopsia) or increased light sensitivity.
  • Dizziness: Can occur due to a drop in blood pressure.
  • Penile pain: Common with alprostadil injections and suppositories.
  • Urethral burning: A common side effect of the MUSE suppository system.

(See "ED drugs: How soon and how long?") It's best not to take the pill with food or soon after a meal, which can block absorption. The most common side effects are headaches, upset stomach, nasal congestion, muscle pain, and facial flushing. But most of these are relatively mild and go away after a few hours.

  • Sildenafil dosage: Typically 25mg, 50mg, or 100mg taken about one hour before sex.
  • Tadalafil dosage: 10mg or 20mg on-demand, or 2.5mg/5mg daily.
  • Vardenafil dosage: Typically 5mg, 10mg, or 20mg taken about 60 minutes before sex.
  • Avanafil dosage: Typically 50mg, 100mg, or 200mg taken about 15-30 minutes before sex.
  • Alprostadil injection dosage: Typically starts at 2.5 mcg, titrated upward.
  • Alprostadil suppository dosage: Typically 125 mcg, 250 mcg, 500 mcg, or 1000 mcg.
  • Testosterone gel dosage: Typically 1-2 pumps or packets applied daily.
  • Testosterone injection frequency: Typically every 1-2 weeks for cypionate/enanthate.
  • Yohimbine dosage: Typically 5.4mg three times a day, but not standardized.
  • Compounded TriMix dosage: Highly variable and customized by a compounding pharmacist.

ED drugs can make blood pressure temporarily drop, so never use them if you also take medications that contain nitrates.

Population Considerations Approved Usage Notes
Elderly Men Increased risk of side effects Yes Dose adjustments may be needed
Men with Diabetes May require higher doses Yes, with caution Monitor for cardiovascular effects
Men on Heart Medication Risk of interactions Yes, but caution needed Consult healthcare provider
Post-prostatectomy Reduced efficacy possible Often used with counseling Tailored treatment needed

(Nitrates found in food don't pose a problem.) You also need to be careful if you take any other drugs that lower blood pressure. For example, alpha blockers - such as tamsulosin (Flomax) and alfuzosin (Uroxatral), which are used to treat symptoms of an enlarged prostate, lower blood pressure in some men. Make sure to take them at least four hours apart from an ED drug.

  • Acetaminophen: Pain reliever and fever reducer, with minimal anti-inflammatory effects.
  • Ibuprofen: Nonsteroidal anti-inflammatory drug (NSAID) used for pain, fever, and inflammation.
  • Naproxen: NSAID effective for chronic pain and inflammatory conditions.
  • Aspirin: Anti-inflammatory, analgesic, and antiplatelet agent.
  • Diclofenac: NSAID used for arthritis and acute pain management.
  • Celecoxib: COX-2 inhibitor for arthritis with less gastrointestinal risk.
  • Indomethacin: NSAID used for gout and inflammatory conditions.
  • Meloxicam: NSAID with selective COX-2 activity for arthritis.
  • Ketorolac: Potent NSAID used short-term for moderate to severe pain.
  • Piroxicam: Long-acting NSAID for arthritis and musculoskeletal conditions.
  • Etodolac: NSAID used for osteoarthritis and rheumatoid arthritis.

It's important to realize that ED drugs don't increase sexual desire, and you have to be ready and sexually stimulated for them to work. The drugs won't work well if you are mentally or emotionally not ready for sex. You can't just take a pill, pay some bills or wash the dishes, and then go to the bedroom and think you'll be ready to go.

Brand names

This program offers you the opportunity to locate providers of various types of medical services who will offer their services to you at discounted rates. The range of discounts for medical or ancillary services provided under the plan will vary depending on the type of provider and service received. You are fully responsible for paying for all health care services but will be entitled to receive a discount from those health care providers in accordance with the specific pre-negotiated discounted fee schedule. This program does not guarantee the quality of the services or procedures offered by the providers. Except for prescription drugs which you will pay directly to the pharmacy at the time of purchase, all other services received through a program provider will be charged to the credit card on file in your member account.

Penile implants

The charge will include an administrative fee for use of the program. Towers Administrators LLC is the licensed discount medical plan organization with its administrative office located at 4510 Cox Road, Suite 111, Glen Allen, VA 23060. SingleCare Services, LLC is the marketer of the discount medical plan organization including its website, singlecare.com, with its corporate office located at 99 High Street, Suite 2800, Boston, MA 02110. For additional information, including an up-to-date list of providers, or assistance with any issue related to program membership, please contact member support any time at or by calling toll-free 844-234-3057, 24 hours, 7 days a week (except major holidays). Pharmacy names, logos, brands, and other trademarks are the property of their respective owners. When your mind is not there, you are not going to want sex, and no ED drug can fix that problem. Before trying an ED drug, it's best to step back and analyze your sex life and when your ED occurs. Does it happen all the time or just in certain situations? Is it with only one partner or different ones? Does it ever happen when you masturbate? Are the problems associated with stress or alcohol? Asking yourself these types of questions can help identify if your ED may be more psychological than physical.

Key Points

While men might have other sexual issues, such as low libido, premature ejaculation, and the inability to achieve orgasm, ED pertains explicitly to not being able to get or maintain an erection. ED drugs address only that issue, by improving blood flow into the penis and keeping the blood in place to maintain an erection. There are four ED drugs currently available: sildenafil (Viagra), avanafil (Stendra), tadalafil (Cialis), and vardenafil (Levitra). At least one ED drug works in about 70% of men, but results vary among individuals. Men who have nerves or arteries damaged by prostate surgery, diabetes, or cardiovascular disease often do not respond as strongly to ED drugs. You might benefit from sex therapy with your partner, or you may need treatment for a specific condition that affects your desire and sexual arousal, like post-traumatic stress disorder, depression, or anxiety. Sildenafil (Viagra) is used to treat erectile dysfunction (impotence; inability to get or keep an erection) in men.

Penis pumps, surgery and implants

Medical conditions treated or associated with impotence medications: Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances. If you take a prescription drug for erectile dysfunction (ED), you'll want to do everything you can to make sure it's doing its job. Take a few minutes to learn how to get the most out of your medication. It will pay off later in the bedroom. Sometimes eating a big meal right after you take an ED drug may not always be the best idea.

Follow a healthy eating plan

If you swallow sildenafil with a high-fat meal, such as a steak dinner, it may take longer for it to work. You can take other ED drugs with or without food, such as: While ED drugs work in similar ways, they're each made up of different chemicals. This can affect how they work, how much time they take to kick in, and the different side effects that you may have. Talk to your doctor about any health problems you have and other medications that you take. It will help your doctor find the ED drug that should work best for you. Sildenafil (Liqrev, Revatio) is used to improve the ability to exercise in adults (Liqrev, Revatio) and children 1 year of age and older (Revatio) with pulmonary arterial hypertension (PAH; high blood pressure in the vessels carrying blood to the lungs, causing shortness of breath, dizziness, and tiredness). Sildenafil is in a class of medications called phosphodiesterase (PDE) inhibitors.

Drug Name Common Side Effects Less Common Side Effects Serious Side Effects
Sildenafil Headache, flushing Nasal congestion Vision changes
Tadalafil Muscle pain, flushing Back pain Priapism
Vardenafil Dizziness, flushing Nasal congestion Hearing loss
Avanafil Dry mouth, headache Flushing Priapism

Sildenafil treats erectile dysfunction by increasing blood flow to the penis during sexual stimulation. This increased blood flow can cause an erection.

Preparing for your appointment

They are intended for general informational purposes and are not meant to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition. If you think you may have a medical emergency, immediately call your physician or dial 911. Impotence medications are used to treat erectile dysfunction (ED), a common condition affecting millions of men that is characterized by the inability to achieve or maintain an erection firm enough for sexual intercourse. These drugs generally work by causing vasodilation, which increases blood flow to the penis to produce and sustain an erection.

Does hair loss treatment cause erectile dysfunction?

ED may be occasional or chronic and can significantly impact quality of life and relationships. Psychological factors such as stress, anxiety, or depression Lifestyle factors such as smoking, excessive alcohol use, or obesity. Treatments for impotence depend on the underlying cause and severity: Oral PDE5 inhibitors: such as sildenafil (Viagra, Vybrique), tadalafil (Cialis), vardenafil, and avanafil (Stendra) Hormone therapy: testosterone replacement for men with confirmed deficiency Penile injections: alprostadil (Caverject) injected directly into the penis Vacuum erection devices: mechanical pumps that draw blood into the penis Penile implants: surgically placed devices for cases unresponsive to other treatments Lifestyle changes and counseling: including weight loss, smoking cessation, and psychotherapy. Papaverine/phentolamine injections are still occasionally used for erectile dysfunction, but have largely been replaced by oral PDE5 medications such as sildenafil and tadalafil or alprostadil injections. Yohimbine, extracted from African tree bark, has long been used as an aphrodisiac. Sildenafil treats PAH by relaxing the blood vessels in the lungs to allow blood to flow easily.

Drug Name Mechanism Onset of Action Duration
Sildenafil PDE5 inhibitor 30-60 minutes 4-6 hours
Tadalafil PDE5 inhibitor, PDE11 inhibitor 30-60 minutes Up to 36 hours
Vardenafil PDE5 inhibitor 30-60 minutes 4-5 hours
Avanafil PDE5 inhibitor 15-30 minutes 6 hours

If you are taking sildenafil to treat erectile dysfunction, you should know that it does not cure erectile dysfunction or increase sexual desire.

From Mayo Clinic to your inbox

For most ED drugs, you need to wait a while before you can expect them to start working. Viagra and Levitra take about 30 minutes to work, and the effects last for about 4 hours after you take the pill. You should take Cialis at least 2 hours before you plan to have sex. The effects may last for up to 36 hours after you take it. If the amount of medicine you use now doesn't help you get an erection, you may need to take a bigger dose.

Lifestyle changes

But don't do this on your own. Talk to your doctor to see if an increase in medication is right for you. You can't take an ED drug and expect to get an erection right away. The medications boost the effects of a chemical your body makes called nitric oxide, which relaxes the muscles in your penis. That improves your cheap lovegra tablets blood flow and helps you get an erection.