Ask your healthcare provider if you are unsure what to do after a missed dose.
- Sildenafil works by relaxing blood vessels to improve blood flow.
- Used primarily to treat erectile dysfunction and pulmonary hypertension.
- Syrup formulations may be used in children or those with swallowing difficulties.
- Proper storage of sildenafil syrup is essential to maintain efficacy.
- It is important to follow a healthcare provider’s instructions when using.
This survey is being conducted by the WebMD marketing sciences department. Generic name: Sildenafil Oral Suspension (PAH) [ sil-DEN-a-fil ] Drug classes: Agents for pulmonary hypertension, Impotence medications It is used to treat high blood pressure in the lungs.
- Sildenafil has been investigated for alternative uses like altitude sickness.
- The syrup form is rarely available in commercial pharmacies.
- Reactions to sildenafil can vary based on individual health.
- Do not share sildenafil syrup with others to avoid adverse effects.
- Always adhere to prescribed dosages to prevent health risks.
It may be given to you for other reasons.
3. Dosage Forms and Strengths
For this use, sildenafil is used only when needed. Take it as your healthcare provider recommends, which is usually between 30 minutes to four hours before planned sexual activity. For this use, take sildenafil as your healthcare provider recommends, which is usually three times a day. If you miss a dose, take it as soon as you remember. If it is almost time for your next dose, skip the missed dose and only take the next dose. If you have an allergy to sildenafil or any other part of sildenafil oral suspension (PAH).
| Product | Dosage | Quantity + Bonus | Price | |
|---|---|---|---|---|
| Kamagra | 100mg | 84 + 6 Pills | 264.44€ 251.85€ | |
| Kamagra Oral Jelly | 100mg | 30 + 5 Sachets | 136.20€ 129.71€ | |
| Viagra Generic | 100mg | 90 + 6 Pills | 129.02€ 122.88€ | |
| Viagra Generic | 25mg | 180 + 6 Pills | 154.93€ 147.55€ | |
| Viagra Generic | 25mg | 360 + 10 Pills | 213.68€ 203.50€ | |
| Kamagra Soft Tabs | 100mg | 84 + 4 Pills | 233.05€ 221.95€ | |
| Kamagra Polo | 100mg | 272 + 12 Pills | 622.94€ 593.28€ | |
| Viagra Generic | 100mg | 360 + 10 Pills | 330.21€ 314.49€ | |
| Kamagra Polo | 100mg | 60 + 4 Pills | 189.39€ 180.37€ | |
| Viagra Generic | 150mg | 60 + 4 Pills | 111.25€ 105.95€ | |
| Viagra Generic | 25mg | 30 + 4 Pills | 47.97€ 45.69€ |
If you are allergic to sildenafil oral suspension (PAH); any part of sildenafil oral suspension (PAH); or any other drugs, foods, or substances.
What should I do if I forget a dose?
Any of the ingredients in the specific product dispensed Your pharmacist can tell you all of the ingredients in the specific sildenafil products they stock. Sildenafil should not be taken while you are using certain other medicines. Before taking sildenafil, tell your healthcare provider about any prescription or over-the-counter (OTC) medicines, vitamins/minerals, herbal products, and other supplements you are using. See the Interactions section for more details. Do not take sildenafil unless it has been prescribed to you by a healthcare provider.
5.1 Hypotension
Do not share sildenafil with other people, even if they have the same condition as you. Keep sildenafil out of the reach of children. If you keep sildenafil oral liquid in a refrigerator, make sure to keep it away from children who also use the refrigerator. Sexual activity can put extra strain on your heart, which may be unsafe for people with certain health problems, such as a recent heart attack. Talk to your healthcare provider to see if your heart is strong enough for sex.
Pulmonary hypertension
If you feel chest pain, dizziness, or nausea during sex, stop and contact your healthcare provider right away. Sildenafil does not protect against sexually transmitted infections, including HIV. Sildenafil belongs to a group of medicines, known as phosphodiesterase-5 (PDE-5) inhibitors, which are used to treat erectile dysfunction or pulmonary arterial hypertension. You should not take more than one white sildenafil tablets PDE-5 inhibitor medicine. Medicines in this group include avanafil (Stendra), sildenafil (Viagra, Revatio, and others), tadalafil (Cialis and others), and vardenafil (Levitra, Staxyn). Tell your doctor about the allergy and what signs you had.
| Condition | Patient Age Group | Dosage Recommendations | Notes |
|---|---|---|---|
| Erectile Dysfunction | Adults (18-65) | 20 mg, 1 hour before | 用于改善勃起功能 |
| Pulmonary Hypertension | Adults | 10–20 mg, 3 times daily | 用于降低肺动脉压力 |
| Off-label Performance Enhancement | Adults | Under medical supervision | 未经批准，需医生指导 |
| Children with Pulmonary Hypertension (Rare) | 1–17 years | 10 mg as prescribed | 特殊病例，严格监控 |
If you have a health problem called pulmonary veno-occlusive disease (PVOD).
| Ingredient | Quantity per 100ml | Function | 备注 |
|---|---|---|---|
| Sildenafil citrate | 20 mg | Active pharmaceutical ingredient | 主要成分，用于治疗勃起功能障碍 |
| Xanthan gum | 0.5 g | Thickening agent | 用于增加粘稠度 |
| Flavored syrup base | 50 ml | Flavor enhancement | 改善口感 |
| Preservatives | As required | Prevent microbial growth | 确保产品稳定性 |
| Purified water | 49.45 ml | Solvent | 溶剂基础 |
If you use drugs called "poppers" like amyl nitrite and butyl nitrite.
| Parameter | Value | Description | Remarks |
|---|---|---|---|
| Absorption | Rapid, within 30-60 min | Time to peak plasma concentration | 最佳服用时间为餐前或空腹 |
| Bioavailability | Approx. 40% | Percentage of dose reaching systemic circulation | 影响药效强度 |
| Half-life | 4 hours | Time taken to reduce plasma concentration by half | 影响药物持续时间 |
| Metabolism | Hepatic (mainly CYP3A4) | Liver enzymes metabolize sildenafil | 酒精或药物相互作用可能影响代谢 |
If you are taking any of these drugs: Isosorbide dinitrate, isosorbide mononitrate, nitroglycerin, riociguat, or ritonavir.
- Sildenafil can cause visual disturbances like blurred vision.
- Alcohol consumption may increase side effects when using sildenafil.
- The syrup should be stored at room temperature away from light.
- Patients should avoid heavy meals before taking sildenafil.
- Regular monitoring is recommended for long-term use.
If you are taking any of these drugs: Itraconazole or ketoconazole. If you are taking another drug that has the same drug in it.
5.6 Combination with Other PDE-5 Inhibitors
Always tell your healthcare provider about any prescription or over-the-counter (OTC) medicines, vitamins/minerals, herbal products, and other supplements you are using. In particular, make sure that you discuss if you are using any of the following before taking sildenafil. Tell your healthcare provider about all medicines that you take or have recently taken. This may not be a complete list of medicines that can interact with sildenafil. If you or someone else has used too much sildenafil, get medical help right away, call 911, or contact a Poison Control center at 800-222-1222. If you are taking another drug like this one that is used to treat erectile dysfunction (ED) or high pressure in the lungs. This is not a list of all drugs or health problems that interact with sildenafil oral suspension (PAH). Tell your doctor and pharmacist about all of your drugs (prescription or OTC, natural products, vitamins) and health problems.
Further information
Use an accurate measuring device to measure your dose of sildenafil oral liquid. A household spoon is not an accurate measuring device and may cause you to take the wrong dose. Ask your pharmacist to recommend an appropriate measuring device. Tell your healthcare provider about all of your health conditions and any prescription or over-the-counter (OTC) medicines, vitamins/minerals, herbal products, and other supplements you are using. This will help them determine if sildenafil is right for you.
Sildenafil may cause side effects. Tell your doctor if any of these symptoms are severe or do not go away:
In particular, make sure that you discuss any of the following. Tell your healthcare provider if you have any of the following. Heart problems, such as heart rhythm problems, chest pain, or heart failure Heart attack, stroke, or heart surgery within the past six months High blood pressure that is still too high despite taking medicines for it Peyronie's disease, or a penis with an abnormal curve or shape An erection lasting longer than four hours A blood disorder, such as sickle cell anemia An inherited eye disease called retinitis pigmentosa Vision loss, or a problem with the nerve between your eyes and brain (optic nerve) Health conditions or factors that raise the risk of optic nerve problems, such as diabetes, high cholesterol, smoking, being older than 50, or having a “crowded disc,” which is something an eye doctor may see in an eye exam Pulmonary veno-occlusive disease, a condition where blood vessels in the lungs are blocked It is not known if or how sildenafil could affect pregnancy or harm an unborn baby. Tell your healthcare provider if you are or plan to become pregnant. Tell your healthcare provider if you are breastfeeding or plan to breastfeed.
Drug Interactions
Your healthcare provider will advise you if you should take sildenafil while breastfeeding. If you take sildenafil after you eat a high-fat meal, such as a burger and fries, it may take longer to start working. Your healthcare provider may recommend limiting or avoiding grapefruit while taking sildenafil. Grapefruit or grapefruit juice can raise sildenafil levels in your body, which can increase the risk of side effects. There are no known interactions between sildenafil and alcohol. You must check to make sure that it is safe for you to take sildenafil oral suspension (PAH) with all of your drugs and health problems. Do not start, stop, or change the dose of any drug without checking with your doctor.
6.2 Postmarketing Experience
Stop taking sildenafil and get emergency help if you have any of the following symptoms of priapism. Erection lasting for more than four hours Erection that is unrelated to sexual stimulation Sildenafil can cause mild, temporary vision changes such as seeing a blue tint, abnormal colors, blurry vision, or sensitivity to light. Though rare, some people have reported permanent vision loss. Stop taking sildenafil and get help right away if you have sudden vision loss in one or both eyes. Sudden hearing loss has been reported after taking sildenafil.
5.8 Vaso-occlusive Crisis in Patients with Pulmonary Hypertension Secondary to Sickle Cell Disease
This may occur along with dizziness and ringing in the ears. Stop taking sildenafil and get help right away if you have sudden hearing loss or suddenly have trouble hearing as well as usual. Sildenafil may cause a mild and temporary drop in blood pressure. You may be at a higher risk if you have certain health conditions or take blood pressure medicines. If you feel faint or dizzy, lie down.
6.2 Postmarketing Experience
Tell your healthcare provider right away if you have any of the following symptoms of low blood pressure. You may be at higher risk for this if you take a blood thinner medicine. Tell your healthcare provider if you get nosebleeds often while taking sildenafil. If your nosebleed is severe or will not stop after applying pressure, get help right away. People who are allergic to any of the following should not take sildenafil. Tell all of your health care providers that you take sildenafil oral suspension (PAH).
How is this medicine (Sildenafil Oral Suspension) best taken?
Throw away any remaining liquid 60 days after it has been mixed for you by a pharmacist or healthcare professional. Sildenafil injection is usually given by a healthcare provider in a hospital or clinic. You will not store it at home. The most common side effects of sildenafil are listed below. These side effects may vary depending on the condition that is being treated.
What should I know about sildenafil before taking it?
Tell your healthcare provider if you have any of these side effects that bother you. Pain in your muscles, back, arms, or legs There may be other side effects of sildenafil that are not listed here. Contact your healthcare provider if you think you are having a side effect of a medicine. In the U.S., you can report side effects to the FDA at or by calling 800-FDA-1088. In Canada, you can report side effects to Health Canada at or by calling 866-234-2345.
Mechanism of Action
While less common, the most serious side effects of sildenafil are described below, along with what to do if they happen. Sildenafil may cause allergic reactions, which can be serious. Stop taking sildenafil and get help right away if you have any of the following symptoms of a serious allergic reaction. Swelling of the face, lips, mouth, tongue, or throat Itching, skin rash, or pale red bumps on the skin called hives Sildenafil may cause an unwanted erection that is persistent, painful, and that may occur without sexual arousal. Permanent damage to the penis may occur if priapism is not treated quickly. This includes your doctors, nurses, pharmacists, and dentists. Avoid driving and doing other tasks or actions that call for you to be alert until you see how sildenafil oral suspension (PAH) affects you. To lower the chance of feeling dizzy or passing out, rise slowly if you have been sitting or lying down.
- Sildenafil syrup is an off-label form of erectile dysfunction medication.
- It's designed for easier ingestion compared to tablets.
- Not approved by most regulatory agencies for syrup form.
- Dosing and safety information are less documented for syrup.
- Usually, sildenafil is available in tablet form, not syrup.
Be careful going up and down stairs. Talk with your doctor before you drink alcohol. Rarely, certain side effects like abnormal heartbeat, heart attack, stroke, bleeding in the lungs, and very bad high blood pressure have happened with sildenafil oral suspension (PAH). Most of the time, these problems happened in people who had heart problems before taking sildenafil oral suspension (PAH).