Label: SILDENAFIL CITRATE tablet

2.4 Dosage Adjustments Due to Drug Interactions
What other information should I know?
See also:
What other drugs will affect sildenafil?
Viagra et environnement
Before Using
What happens if I overdose?

It can be taken 30 minutes to 4 hours before sexual activity.

2.4 Dosage Adjustments Due to Drug Interactions

This information is not a substitute for medical advice. Always speak with your healthcare provider about possible interactions with all prescription drugs, vitamins, herbs and supplements, and over-the-counter drugs that you are taking. Sildenafil can cause a severe allergic reaction. If you develop these symptoms, call 911 or go to the nearest emergency room. Don’t take this drug again if you’ve ever had an allergic reaction to it.

Legal / Prescription Status in India (Schedule H)

Taking it again could be fatal (cause death). The use of drinks that contain alcohol raises your risk for low blood pressure from sildenafil. If you drink alcohol, talk with your doctor. You may need to have your blood pressure monitored while you take this drug. For people with heart problems: This drug can lower your blood pressure. Maximum dosage: 100 mg once per day. This drug has not been confirmed to be safe or effective in 50 mg sildenafil price children younger than 18 years. Senior dosage (ages 65 years and older) The kidneys, liver, or heart of older adults may not work as well as they used to. This raises your risk of side effects.

Product	Dosage	Quantity + Bonus	Price
Viagra Generic	200mg	10 Pills	40.96€ 39.01€
Viagra Generic	50mg	30 + 4 Pills	54.26€ 51.68€
Kamagra	100mg	12 Pills	55.64€ 52.99€
Viagra Generic	200mg	60 + 4 Pills	125.19€ 119.23€
Kamagra Polo	100mg	84 + 4 Pills	244.49€ 232.85€
Kamagra Oral Jelly	100mg	21 Sachets	95.92€ 91.35€
Viagra Generic	50mg	60 + 4 Pills	83.93€ 79.93€
Kamagra Oral Jelly	100mg	10 Sachets	54.55€ 51.95€
Kamagra Polo	100mg	32 Pills	125.88€ 119.89€
Kamagra Oral Jelly	100mg	110 + 9 Sachets	334.87€ 318.92€
Kamagra Oral Jelly	100mg	63 + 7 Sachets	224.18€ 213.50€
Viagra Generic	25mg	90 + 6 Pills	105.03€ 100.03€
Kamagra Polo	100mg	60 + 4 Pills	189.39€ 180.37€
Viagra Generic	150mg	180 + 10 Pills	236.46€ 225.20€
Viagra Generic	100mg	120 + 6 Pills	149.50€ 142.38€
Viagra Generic	50mg	20 Pills	40.52€ 38.59€

Your doctor may start you on a lowered dosage of sildenafil.

The onset and duration of effect vary depending on individual factors.
Typical duration of an erection after taking sildenafil is 4-6 hours.
If an erection persists longer than 4 hours, seek medical help immediately.
Do not use sildenafil if you have been advised against sexual activity.

This can help prevent levels of this drug from building up in your body.

What other information should I know?

If you’ve had certain heart problems in the last 6 months, ask your doctor whether this drug is safe for you. These problems include a heart attack, stroke, or life threatening heart rhythm problem. Also talk with your doctor if you have a low or high resting blood pressure, or a history of heart failure or coronary artery disease. For people with pulmonary veno-occlusive disease (PVOD): Taking this drug may worsen your heart function. For people with eye problems: This drug may cause sudden loss of vision in one or both eyes.

Sildenafil Tablets or Oral Suspension for PAH

This may be a sign of non-arteritic anterior ischemic optic neuropathy (NAION). If you’ve already had NAION or have crowded optic disc, you may have a higher risk for NAION and vision changes with this drug. For people with problems with the shape of their penis: If you have a problem with the shape of your penis, such as Peyronie’s disease, this drug raises your risk for having an erection that lasts more than 4 hours. For people with a history of stomach ulcers or bleeding: This drug raises your risk for stomach bleeding, ulcers, or small holes in the lining of your digestive system. These events can be fatal (cause death). Typical dosage: 5 or 20 mg, taken three times per day about 4 to 6 hours apart Maximum dosage: 20 mg, taken three times per day about 4 to 6 hours apart This drug shouldn’t be used in children younger than 18 years of age. Disclaimer: Our goal is to provide you with the most relevant and current information. However, because drugs affect each person differently, we cannot guarantee that this list includes all possible dosages. Always speak with your doctor or pharmacist about dosages that are right for you. Sildenafil oral tablet is used for short-term treatment of ED and long-term treatment of PAH.

People with heart disease should consult their doctor before use.
Do not use sildenafil if you are taking medications containing nitrates.
Side effects may include dizziness or vision disturbances.
Report any persistent or severe side effects to your healthcare provider.

It comes with serious risks if you don’t take it as prescribed.

What other drugs will affect sildenafil?

Talk with your doctor if you breastfeed your child. You may need to decide whether to stop breastfeeding or stop taking this medication. For seniors: The kidneys, liver, or heart of older adults may not work as well as they used to. This can cause your body to process drugs more slowly. As a result, a higher amount of a drug stays in your body for a longer time.

Why this range helps:

This raises your risk for side effects. For children: This drug isn’t recommended in children younger than 18 years. In one study, children with PAH who took this drug had an increased chance for death. All possible dosages and drug forms may not be included here. Your dosage, drug form, and how often you take the drug will depend on: how you react to the first dose Strengths: 25 mg, 50 mg, 100 mg Strengths: 25 mg, 50 mg, 100 mg Typical dosage: 50 mg, taken as needed about 1 hour before sexual activity. If you miss doses or don’t take the drug on schedule: For ED: Your ED symptoms won’t improve.

Drug/Class	Interaction Effect	Clinical Significance	Recommendation
Nitrates	Severe hypotension	Contraindicated	Avoid concomitant use
Alpha-blockers	Additive blood pressure lowering	Hypotension risk	Monitor blood pressure closely
CYP3A4 inhibitors	Increased sildenafil levels	Increased side effects	Dose adjustment may be necessary
Alcohol	Enhanced hypotensive effects	Increased dizziness risk	Use with caution

For PAH: This medication may not work as well or may stop working completely. For this drug to work well, a certain amount needs to be in your body at all times.

Indication	Contraindication	Comments
Erectile dysfunction	Use of nitrates	Absolute contraindication
Pulmonary arterial hypertension	Severe cardiovascular disorders	FDA approved for PAH (Revatio)
Raynaud's phenomenon (off-label)	Hypersensitivity to sildenafil	Not FDA approved for this indication
Altitude sickness (off-label)	Concomitant use with alpha-blockers	Use cautiously under supervision

If you take too much: You could have dangerous levels of the drug in your body. Symptoms of an overdose of this drug can include: If you think you’ve taken too much of this drug, call your doctor or local poison control center.

Long-term safety of sildenafil requires more research.
Most side effects are mild and resolve on their own.
Repeated use may cause psychological dependence.
Regular medical reviews are recommended for ongoing therapy.

If your symptoms are severe, call 911 or go to the nearest emergency room right away. What to do if you miss a dose: For ED: Take your dose 30 minutes to 4 hours before your next sexual activity. For PAH: Take your dose as soon as you remember. But if you remember just a few hours before your next scheduled dose, take only one dose.

Viagra et environnement

Examples of drugs that can cause interactions with sildenafil are listed below. Do not take these drugs with sildenafil. Doing so can cause dangerous effects in the body. Nitrates, such as isosorbide mononitrate, isosorbide dinitrate, or nitroglycerin.Taking these drugs with sildenafil can cause your blood pressure to drop suddenly to an unsafe level. Taking these drugs with sildenafil can cause your blood pressure to drop suddenly to an unsafe level.

More common

Guanylate cyclase stimulators, such as riociguat.Taking these drugs with sildenafil can cause your blood pressure to drop suddenly to an unsafe level. Side effects from sildenafil: Taking sildenafil with certain medications raises your risk for side effects from sildenafil. This is because the amount of sildenafil in your body is increased. HIV drugs, such as ritonavir, indinavir, saquinavir, or atazanavir.Increased side effects can include low blood pressure, dizziness, or vision problems. They can also include erections that last longer than normal. Never try to catch up by taking two doses at once. This could result in dangerous side effects.

Before Using

Sudden hearing loss warning: This drug can cause hearing loss, tinnitus (ringing in your ears), or dizziness. If you have sudden hearing loss with or without tinnitus or dizziness, stop taking sildenafil and call your doctor right away. Use in children warning: Children generally should not take sildenafil; however, there are instances where the drug is considered the best treatment option. Talk with your child’s doctor to better understand the benefits and risks associated with this treatment option. Sildenafil oral tablet can interact with other medications, vitamins, or herbs you may be taking.

Kamagra Soft Tabs

An interaction is when a substance changes the way a drug works. This can be harmful or prevent the drug from working well. To help avoid interactions, your doctor should manage all of your medications carefully. Be sure to tell your doctor about all medications, vitamins, or herbs you’re taking. To find out how this drug might interact with something else you’re taking, talk with your doctor or pharmacist. How to tell if the drug is working: For ED: You should be able to get and maintain an erection when sexually aroused.

Sildenafil was first approved by the FDA in 1998.
It revolutionized erectile dysfunction treatment worldwide.
Research is ongoing into new potential uses of PDE5 inhibitors.
The drug has helped millions improve their quality of life.

For PAH: You should be able to exercise more easily. Your doctor will also check you to determine if this drug is working. Keep these considerations in mind if your doctor prescribes sildenafil for you. You can take this drug with or without food.

Brand Name	Manufacturer	Dosage Forms	Price Range (USD)	Available Regions
Viagra	Pfizer	25, 50, 100 mg	30-50 per tablet	Worldwide
Revatio	Pfizer	20 mg tablets	40+ per tablet	Mainly for pulmonary hypertension
Kamagra	Ajanta Pharma	50, 100 mg	0.5-2 per tablet	Asia, Middle East
Generic Sildenafil	Multiple manufacturers	25, 50, 100 mg	0.3-3 per tablet	Global

You can cut or crush the tablet.

What happens if I overdose?

They can happen at any time, with or without symptoms. For people with sickle cell anemia: This drug may cause a common painful complication of sickle cell anemia called vaso-occlusive crisis. If you have sickle cell anemia, ask your doctor whether this drug is safe for you. For pregnant women: Research in animals has not shown a risk to the fetus when the mother takes the drug. However, there aren’t enough studies done in humans using the drug for PAH to show if the drug poses a risk to the fetus.

Key takeaways

Talk with your doctor if you’re pregnant or planning to become pregnant. It appears unlikely that this drug will harm a pregnancy. However, this drug should only be used during pregnancy if clearly needed. Viagra or generic sildenafil for ED should not be used in women. For women who are breastfeeding: When used for PAH, sildenafil may pass into breast milk and may cause side effects in a child who is breastfed. When you take the drug depends on the condition being treated:For ED: You can take this drug at any time of day.For PAH: Take this drug three times per day about 4–6 hours apart.