Understanding Viagra Dosage and Administration

How long does it take Viagra to work?
Information & Authors
Key takeaways:
What side effects can this medication cause?
See also:

If both medicines are prescribed together, your doctor may change the dose or how often you use viagra gel one or both of the medicines. Using this medicine with any of the following medicines may cause an increased risk of certain side effects, but using both drugs may be the best treatment for you. Certain medicines should not be used at or around the time of eating food or eating certain types of food since interactions may occur. Using alcohol or tobacco with certain medicines may also cause interactions to occur. Using this medicine with any of the following may cause an increased risk of certain side effects but may be unavoidable in some cases.

How long does it take Viagra to work?

Properly discard this product when it is expired or no longer needed. Consult your pharmacist or local waste disposal company. HOW TO USE THIS INFORMATION: This is a summary and does NOT have all possible information about this product. This information does not assure that this product is safe, effective, or appropriate for you. This information is not individual medical advice and does not substitute for the advice of your health care professional.

Expired, fake and contaminated pills

Always ask your health care professional for complete information about this product and your specific health needs. Selected from NATIONAL DRUG DATA FILE (NDDF) data included with permission and copyrighted by First Databank, Inc., 2019. This copyrighted material has been downloaded from a licensed data provider. The above information is intended to supplement, not substitute for, the expertise and judgment of your health care professional. You should consult your health care professional before taking any drug, changing your diet, or commencing or discontinuing any course of treatment. If used together, your doctor may change the dose or how often you use this medicine, or give you special instructions about the use of food, alcohol, or tobacco. The presence of other medical problems may affect the use of this medicine. Make sure you tell your doctor if you have any other medical problems, especially: Abnormal penis, including a curved penis or birth defects of the penis—Chance of problems occurring may be increased and this medicine should be used with caution in these patients.

Condition / Situation	Reason	Recommendation
Use with Nitrates	Risk of severe hypotension	Avoid concomitant use
Cardiovascular conditions	Increased heart attack risk	Consult doctor before use
Recent stroke or unstable angina	Potential for worsening condition	Avoid until stabilized
Liver or kidney impairment	Altered drug metabolism	Dose adjustment necessary
Allergies to sildenafil or excipients	Risk of allergic reactions	Check ingredients carefully

Arrhythmia (irregular heartbeat, within the last 6 months) or Blood vessel problems (eg, aortic stenosis, idiopathic subaortic stenosis) or Heart attack (within the last 6 months) or Retinitis pigmentosa (an inherited eye disorder) or Stroke (within the last 6 months)—Should not be used in patients with these conditions. Crowded disc or low cup to disc ratio in the eye (an eye disorder) or Hyperlipidemia (high fats in the blood) or Non-arteritic anterior ischemic optic neuropathy or NAION (serious eye condition), history of or Retinitis pigmentosa (an inherited eye disorder) or Smoking—May increase the chance for a serious side effect in the eye called NAION. Stomach ulcer, or history of or—Chance of problems occurring may be increased.

Viagra’s introduction marked a shift towards oral solutions for ED.
It is contraindicated in men taking certain blood pressure medications.
The medication’s cost varies based on brand and dosage.
Use of Viagra is generally not recommended with certain recreational drugs.
Patients should disclose all health issues to their doctor before use.
The drug has helped millions regain sexual confidence.
Some users report no effect if taken without sexual stimulation.
Development of drug resistance or tolerance is very rare.

It is not known if the medicine is safe for use in these patients.

Viagra’s impact has driven social and medical discussions about ED.
It is advisable to disclose all medications to your healthcare provider.
Some individuals may require alternative treatments if Viagra is ineffective.
The drug’s popularity has led to numerous online counterfeit products.
Using genuine Viagra from licensed pharmacies ensures safety.
Pregnant women and men with certain health issues should avoid Viagra.
Common side effects tend to diminish as the body adjusts.
Regular check-ups are recommended for men on long-term ED medication use.

The effects may be increased because of slower removal of the medicine from the body. Sickle-cell anemia (blood disorder)—Sildenafil should be used with caution in these patients as problems with prolonged erection of the penis may occur. Pulmonary arterial hypertension (high blood pressure in the lungs) or Pulmonary veno-occlusive disease or PVOD (a type of lung disease)—Use with caution. Use sildenafil exactly as directed by your doctor. Do not use more of it and do not use it more often than your doctor ordered.

Parameter	Value	Notes
Absorption Time	30-60 minutes	Peak plasma concentrations
Bioavailability	~40%	Due to first-pass metabolism
Half-life	4-5 hours	Time for plasma concentration to reduce by half
Metabolism	Liver (CYP3A4 enzyme)	Mainly processed in the liver
Excretion	Feces and urine	About 80% in feces, 13% in urine

If too much is used, the chance of side effects is increased. This medicine comes with a patient information leaflet.

Product	Dosage	Quantity + Bonus	Price
Viagra Generic	150mg	20 Pills	55.02€ 52.40€
Viagra Original	100mg	14 + 2 Pills	89.03€ 84.79€
Viagra Generic	25mg	120 + 6 Pills	125.56€ 119.58€
Viagra Soft Tabs	100mg	270 + 10 Pills	419.95€ 399.95€
Viagra Generic	150mg	60 + 4 Pills	111.25€ 105.95€
Viagra Generic	150mg	360 + 10 Pills	423.48€ 403.31€
Viagra Oral Jelly	100mg	110 + 9 Sachets	284.63€ 271.08€
Viagra Original	100mg	64 + 4 Pills	264.15€ 251.57€
Viagra Generic	25mg	360 + 10 Pills	213.68€ 203.50€
Viagra Generic	150mg	180 + 10 Pills	236.46€ 225.20€
Viagra Generic	50mg	30 + 4 Pills	54.26€ 51.68€
Viagra Oral Jelly	100mg	63 + 7 Sachets	190.54€ 181.47€
Viagra Generic	25mg	180 + 6 Pills	154.93€ 147.55€
Viagra Soft Tabs	100mg	10 Pills	36.93€ 35.17€

Read and follow these instructions carefully before you start using sildenafil and each time you get a refill of your medicine. Ask your doctor if you have any questions. You may take this medicine with or without food. Place the film on top of your tongue. It will dissolve in your mouth and can be swallowed with saliva without using buy generic viagra online water or other liquids. Shake the bottle well for at least 10 seconds before each use. Remove the cap by pushing it down and twisting it counter-clockwise. Push the plunger of the syringe, then insert the tip into the bottle while holding the bottle upright on a flat surface. Slowly pull back the plunger until the required dose. If you see air bubbles in the syringe, repeat the steps. Place the tip of the syringe into you or your child's mouth and point it towards the cheek. This medicine usually begins to work for erectile dysfunction within 30 minutes after taking it. It continues to work for up to 4 hours, although its action is usually less after 2 hours. Use only the brand of this medicine that your doctor prescribed. Different brands may not work the same way. The dose of this medicine will be different for different patients.

Information & Authors

Sildenafil is used to treat erectile dysfunction (also called sexual impotence). Sildenafil belongs to a group of medicines called phosphodiesterase 5 (PDE5) inhibitors. These medicines prevent an enzyme called phosphodiesterase type-5 from working too quickly. The penis is one of the areas where this enzyme works. Erectile dysfunction is viagra jelly sachets uk a condition where the penis does not harden and expand when a man is sexually excited, or when he cannot keep an erection.

Drug forms and administration

When a man is sexually stimulated, his body's normal response is to increase blood flow to his penis to produce an erection. By controlling the enzyme, sildenafil helps to maintain an erection after the penis is stroked. Without physical action to the penis, such as that occurring during sexual intercourse, sildenafil will not work to cause an erection. Sildenafil is also used in both men and women to treat the symptoms of pulmonary arterial hypertension. This is a type of high blood pressure that occurs between the heart and the lungs. Follow your doctor's orders or the directions on the label. The following information includes only the average doses of this medicine.

Key takeaways:

When hypertension occurs in the lungs, the heart must work harder to pump enough blood through the lungs. Sildenafil works on the PDE5 enzyme in the lungs to relax the blood vessels. This will increase the supply of blood to the lungs and reduce the workload of the heart. This medicine is available only with your doctor's prescription. This product is available in the following dosage forms: In deciding to use a medicine, the risks of taking the medicine must be weighed against the good it will do.

Does Viagra increase a man’s sex drive?

This is a decision you and your doctor will make. For this medicine, the following should be considered: Tell your doctor if you have ever had any unusual or allergic reaction to this medicine or any other medicines. Also tell your health care professional if you have any other types of allergies, such as to foods, dyes, preservatives, or animals. For non-prescription products, read the label or package ingredients carefully. Appropriate studies have not been performed on the relationship of age to the effects of sildenafil in children younger than 1 year of age. If your dose is different, do not change it unless your doctor tells you to do so. The amount of medicine that you take depends on the strength of the medicine. Also, the number of doses you take each day, the time allowed between doses, and the length of time you take the medicine depend on the medical problem for which you are using the medicine. For treatment of erectile dysfunction:For oral dosage form (tablets):Adults up to 65 years of age—50 milligrams (mg) as a single dose no more than once a day, 1 hour before sexual intercourse. Alternatively, the medicine may be taken 30 minutes to 4 hours before sexual intercourse.

What side effects can this medication cause?

When you are taking this medicine, it is especially important that your healthcare professional know if you are taking any of the medicines listed below. The following interactions have been selected on the basis of their potential significance and are not necessarily all-inclusive. Using this medicine with any of the following medicines is not recommended. Your doctor may decide not to treat you with this medication or change some of the other medicines you take. Using this medicine with any of the following medicines is usually not recommended, but may be required in some cases. Your doctor may adjust your dose if needed.Adults 65 years of age and older—25 mg as a single dose no more than once a day, 1 hour before sexual intercourse. Your doctor may adjust your dose if needed.Children—Use is not recommended.For oral dosage form (film):Adults up to 65 years of age—50 milligrams (mg) as a single dose no more than once a day, 1 hour before sexual intercourse.