The most common side effects of VIAGRA are: abnormal vision, such as changes in color vision (such as having a blue color tinge) and blurred vision In addition, heart attack, stroke, irregular heartbeats and death have happened rarely in men taking VIAGRA.
Detection in biological fluids
take medicines called nitrates (such as nitroglycerin) use street drugs called viagra click and collect “poppers” such as amyl nitrate or amyl nitrite, and butyl nitrate take any medicines called guanylate cyclase stimulators such as riociguat (Adempas) are allergic to sildenafil, as contained in VIAGRA and REVATIO, or any of the ingredients in VIAGRA. See the end of this leaflet for a complete list of ingredients in VIAGRA What should I tell my healthcare provider before taking VIAGRA? Before you take 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 low blood pressure, or high blood pressure that is not controlled 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 non-arteritic anterior ischemic optic neuropathy (NAION) have kidney problems or are having kidney dialysis 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 (see “What is the most important information I should know about VIAGRA?”) medicines called guanylate cyclase stimulators, such as riociguat (Adempas) 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).
What should I do if I miss a dose of sildenafil?
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) some types of oral antifungal medicines, such as ketoconazole (Nizoral), and itraconazole (Sporanox) some types of antibiotics, such as clarithromycin (Biaxin), telithromycin (Ketek), or erythromycin other medicines that treat high blood pressure 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]).
Sildenafil may cause side effects. Tell your doctor if any of these symptoms are severe or do not go away:
Ask your healthcare provider or pharmacist for a list of these medicines, if you are not sure. Keep a list of them to show to your healthcare provider and pharmacist when you get a new medicine Take VIAGRA exactly as your healthcare provider tells you to take it. Your healthcare provider will tell you how much VIAGRA to take and when to take it. Take VIAGRA about 1 hour before sexual activity. You may take VIAGRA between 30 minutes to 4 hours before sexual activity if needed. Most, but not all, of these men had heart problems before taking VIAGRA.
| Product | Dosage | Quantity + Bonus | Price | |
|---|---|---|---|---|
| Viagra Original | 100mg | 92 + 4 Pills | 362.88€ 345.60€ | |
| Viagra Soft Tabs | 100mg | 10 Pills | 36.93€ 35.17€ | |
| Viagra Generic | 150mg | 120 + 8 Pills | 177.58€ 169.12€ | |
| Viagra Soft Tabs | 100mg | 90 + 6 Pills | 205.31€ 195.53€ | |
| Viagra Original | 100mg | 120 + 8 Pills | 470.39€ 447.99€ | |
| Viagra Professional | 100mg | 180 + 4 Pills | 337.30€ 321.24€ | |
| Viagra Generic | 25mg | 90 + 6 Pills | 105.03€ 100.03€ | |
| Viagra Generic | 25mg | 180 + 6 Pills | 154.93€ 147.55€ | |
| Viagra Generic | 200mg | 360 + 10 Pills | 481.98€ 459.03€ | |
| Viagra Generic | 25mg | 270 + 8 Pills | 184.26€ 175.49€ | |
| Viagra Soft Tabs | 100mg | 270 + 10 Pills | 419.95€ 399.95€ | |
| Viagra Generic | 50mg | 30 + 4 Pills | 54.26€ 51.68€ | |
| Viagra Generic | 50mg | 10 Pills | 26.87€ 25.59€ | |
| Viagra Generic | 150mg | 20 Pills | 55.02€ 52.40€ |
It is not known if VIAGRA caused these problems.
What happens if I miss a dose?
VIAGRA was effective in a broad range of ED patients, including those with a history of coronary artery disease, hypertension, other cardiac disease, peripheral vascular disease, diabetes mellitus, depression, coronary artery bypass graft (CABG), radical prostatectomy, transurethral resection of the prostate (TURP) and spinal cord injury, and in patients taking antidepressants/antipsychotics and antihypertensives/ diuretics. VIAGRA® (vi-AG-rah) (sildenafil citrate) Tablets What is the most important information I should know about VIAGRA? VIAGRA can cause your blood pressure to drop suddenly to an unsafe level if it is taken with certain other medicines. Do not take VIAGRA if you take any other medicines called “nitrates”. Nitrates are used to treat chest pain (angina).
Dosage for ED
A sudden drop in blood pressure can cause you to feel dizzy, faint, or have a heart attack or stroke. Do not take VIAGRA if you take medicines called guanylate cyclase stimulators which include: Riociguat (Adempas®) a medicine that treats pulmonary arterial hypertension and chronic-thromboembolic pulmonary hypertension Tell all your healthcare providers that you take VIAGRA. If you need emergency medical care for a heart problem, it will be important for your healthcare provider to know when you last took VIAGRA. Ask your doctor if your heart is healthy enough to handle the extra strain of having sex. VIAGRA does not protect you or your partner from getting sexually transmitted diseases, including HIV—the virus that causes AIDS.
How can I get Viagra to work?
VIAGRA is a prescription medicine used to treat erectile dysfunction (ED). You will not get an erection just by taking this medicine. VIAGRA helps a man with erectile dysfunction get and keep an erection only when he is sexually excited (stimulated). VIAGRA is not for use in women or children. It is not known if VIAGRA is safe and effective in women or children under 18 years of age. These are not all the possible side effects of VIAGRA.
| Year | Units Sold (Millions) | Market Growth (%) | Key Regions |
|---|---|---|---|
| 2022 | 2.5 | 10 | North America, Europe |
| 2023 | 3.2 | 28 | USA, UK, Germany |
| 2024 | 4.0 | 25 | Asia, Middle East |
For more information, ask your healthcare provider or pharmacist.
Popular FAQ
Men with untreated ED had relatively low baseline scores for all aspects of sexual function measured (again using a 5-point scale) in the IIEF. VIAGRA improved these aspects of sexual function: frequency, firmness and maintenance of erections; frequency of orgasm; frequency and level of desire; frequency, satisfaction and enjoyment of intercourse; and overall relationship satisfaction. One randomized, double-blind, flexible-dose, placebo-controlled study included only patients with erectile dysfunction attributed to complications of diabetes mellitus (n=268). As in the other titration studies, patients were started on 50 mg and allowed to adjust the dose up to 100 mg or down to 25 mg of VIAGRA; all patients, however, were receiving 50 mg or 100 mg at the end of the study. There were highly statistically significant improvements on the two principal IIEF questions (frequency of successful penetration during sexual activity and maintenance of erections after penetration) on VIAGRA compared to placebo.
Key takeaways
On a global improvement question, 57% of VIAGRA patients reported improved erections versus 10% on placebo. Diary data indicated that on VIAGRA, 48% of intercourse attempts were successful versus 12% on placebo. One randomized, double-blind, placebo-controlled, crossover, flexible-dose (up to 100 mg) study of patients with erectile dysfunction resulting from spinal cord injury (n=178) was conducted. The changes from baseline in scoring on the two end point questions (frequency of successful penetration during sexual activity and maintenance of erections after penetration) were highly statistically significantly in favor of VIAGRA. On a global improvement question, 83% of patients reported improved erections on VIAGRA versus 12% on placebo.
Sudden hearing loss
Diary data indicated that on VIAGRA, 59% of attempts at sexual intercourse were successful compared to 13% on placebo. Across all trials, VIAGRA improved the erections of 43% of radical prostatectomy patients compared to 15% on placebo. Subgroup analyses of responses to a global improvement question in patients with psychogenic etiology in two fixed-dose studies (total n=179) and two titration studies (total n=149) showed 84% of VIAGRA patients reported improvement in erections compared with 26% of placebo. Diary data in two of the studies (n=178) showed rates of successful intercourse per attempt of 70% for VIAGRA and 29% for placebo. A review of population subgroups demonstrated efficacy regardless of baseline severity, etiology, race and age. You may report side effects to FDA at 1- 800-FDA-1088. Store VIAGRA at room temperature between 68°F to 77°F (20°C to 25°C).
- Researchers study liquid Viagra for faster onset in clinical trials.
- Its popularity has increased due to convenience over traditional pills.
- Liquid Viagra can be mixed with food or drinks, but this may affect absorption.
- It’s often used by men with difficulty swallowing pills or dysphagia.
- Some formulations feature natural or herbal additives for enhanced effects.
- Special formulations are designed for rapid dissolution in the mouth.
- Users should avoid alcohol to reduce the risk of side effects.
- Reports of variability in absorption times can occur among users.
- Certain health conditions may require dosage adjustments.
- Price comparison shows liquid Viagra can be more affordable in some regions.
- Always follow legal guidelines and purchase from reputable sources.
Keep VIAGRA and all medicines out of the reach of children.
- Liquid Viagra is typically more discreet than pills for on-the-go use.
- It may offer dosing flexibility, allowing smaller or adjustable doses.
- Pharmacists can often customize doses of liquid Viagra for personalized needs.
- The liquid form can be combined with flavorings to improve taste.
- Some brands provide gel-like liquids for faster absorption.
- It requires refrigeration in some cases to maintain potency.
- Some men prefer liquid Viagra for its immediate start of action.
- The price of liquid Viagra can vary based on brand and pharmacy.
- It is usually prescribed for erectile dysfunction caused by various health factors.
- Liquid Viagra does not have different active ingredients from pills; just a different form.
- Always consult a healthcare provider before switching to liquid Viagra.
General information about the safe and effective use of VIAGRA. Medicines are sometimes prescribed for purposes other than those listed in a Patient Information leaflet. Do not use VIAGRA for a condition for which it was not prescribed. Do not give VIAGRA to other people, even if they have the same symptoms that you have.
| Brand Name | Manufacturer | Concentration | Price (USD) | Availability |
|---|---|---|---|---|
| ViraLiquid | PharmaX | 50 mg/10 ml | $25 | Online & Pharmacies |
| LiquidPower | MedHealth | 20 mg/5 ml | $15 | Online |
| LibidoBoost | QuickMed | 25 mg/10 ml | $20 | Select markets |
This Patient Information leaflet summarizes the most important information about VIAGRA.
Side Effects for Viagra
VIAGRA can be taken with or without food. If you take VIAGRA after a high fat meal (such as a cheeseburger and french fries), VIAGRA may take a little longer to start working. Do not take VIAGRA more than 1 time a day. If you accidentally take too much VIAGRA, call your doctor or go to the nearest hospital emergency room right away. What are the possible side effects of VIAGRA?
Does Viagra work the first time you use it?
an erection that will not go away (priapism). sudden vision loss in one or both eyes. It is uncertain whether PDE5 inhibitors directly cause the vision loss. Stop taking VIAGRA and call your healthcare provider right away if you have sudden vision loss in one or both eyes. If you have these symptoms, stop taking VIAGRA and contact a doctor right away. If you would like more information, talk with your healthcare provider.
- Liquid Viagra is sometimes marketed as a quick-acting alternative to pills.
- Properly measuring doses ensures safety and effectiveness.
- It can be stored at room temperature in a cool, dry place.
- Some users report more discreet usage with liquid than tablets.
- The liquid form can be easier to carry and store discreetly.
- Its taste can be masked with flavorings, making it more palatable.
- Medical consultation is vital before starting liquid Viagra treatment.
- It is essential to avoid overdose, which can cause severe side effects.
- The onset of effects is usually within 15-30 minutes.
- Some formulations are designed for faster dissolving in the mouth.
- Always discard expired liquid Viagra to prevent health risks.
You can ask your healthcare provider or pharmacist for information about VIAGRA that is written for health professionals. You are encouraged to report negative side effects of prescription drugs to the FDA.
| Parameter | Value | Notes |
|---|---|---|
| Absorption Time | 15-30 minutes | Depends on administration |
| Peak Plasma Concentration | 60 minutes | After ingestion |
| Half-life | 4 hours | Clearance from body |
| Bioavailability | 40-45% | Oral liquid form |
Visit the FDA MedWatch website or call 1-800-FDA-1088.
- Liquid Viagra often requires measuring syringes for accurate dosing.
- It can be used in combination with other ED treatments but under medical advice.
- Contraindications include severe heart or liver conditions.
- The safety of liquid Viagra relies on proper storage and handling.
- Its effects last roughly 4-6 hours per dose.
- Some formulations contain preservatives to extend shelf life.
- It is important to avoid exceeding the recommended dose to prevent adverse effects.
- Liquid Viagra must be taken about 30-60 minutes before intimacy for best results.
- Beware of counterfeit or unapproved liquid Viagra on the black market.
- Always verify the source when purchasing liquid Viagra online.
- Discuss potential drug interactions with a healthcare provider before use.
Generic name: sildenafil (oral) [ sil-DEN-a-fil ] Other brand names of sildenafil (oral) include: Revatio, Viagra, Vybrique Drug class: Impotence medications Viagra relaxes muscles found in the walls of blood vessels and increases blood flow to particular areas of the body.