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Silnafil 25mg Tablet
Last updated on 11 Jun 2026 | 07:03 AM (IST)
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Introduction
Silnafil 25mg Tablet contains an active component as Sildenafil. This medication treats pulmonary arterial hypertension (PAH) in adults and children. PAH is characterized by high blood pressure in the arteries that carry blood from the heart to the lungs. This medication is part of a class of drugs called phosphodiesterase type 5 (PDE-5) inhibitors, which also includes medications like Viagra (sildenafil) for erectile dysfunction. People with PAH often experience shortness of breath and reduced exercise capacity due to the increased pressure in their pulmonary arteries. Silnafil 25mg Tablet can improve exercise capacity by easing the strain on the heart and lungs, allowing patients to engage in physical activities with less difficulty. PAH is a chronic condition that can significantly impact a person's daily life and well-being. By managing the symptoms and progression of the disease, this medication can contribute to an improved quality of life for individuals with PAH. It is one of the few medications approved for treating pediatric PAH, making it an important option for children with this condition.
Silnafil 25mg Tablet can cause a temporary decrease in blood pressure, especially when taken with other medications that lower blood pressure or in individuals with underlying low blood pressure. Caution should be exercised when using in patients with hypotension. It is crucial to inform the healthcare provider about any pre-existing heart conditions before starting treatment. Patients with severe liver or kidney impairment may require dose adjustments or careful monitoring while taking it. Silnafil 25mg Tablet should not be used concomitantly with nitrates (nitroglycerin, isosorbide dinitrate, isosorbide mononitrate) or any other medications containing nitric oxide donors. The combination can lead to a dangerous drop in blood pressure.
Uses
Silnafil 25mg Tablet is used to treat the following:
Pulmonary arterial hypertension
How Silnafil 25mg Tablet works
This medication works by relaxing the blood vessels in the lungs, reducing the pressure in the pulmonary arteries, and improving blood flow. This helps to alleviate symptoms of PAH and improve exercise capacity.
Interaction of Silnafil 25mg Tablet with other drugs
Inform the doctor about your medicines, including prescription, over-the-counter, nutritional or vitamin supplements, and herbal products. Certain medications may interact with Silnafil 25mg Tablet, reducing effectiveness by causing undesirable side effects.
Storage Conditions
Store at room temperature, between 20°C to 25°C (68°F to 77°F).
Keep away from moisture, heat, and light.
It should not be frozen.
Keep away from children and pets.
How to take Silnafil 25mg Tablet
It comes in the form of a powder that needs to be mixed with water to create a suspension. Your healthcare provider will provide the exact dosing instructions, so it is crucial to follow their recommendations carefully. Generally, the suspension is taken three times a day, with at least 4 to 6 hours between doses. It can be taken with or without food. Shake the bottle well before each use and measure the prescribed dose using the provided oral syringe or dosing cup.
Safety Advice
Breast Feeding
If you are breastfeeding or planning to breastfeed while taking Silnafil 25mg Tablet, it is crucial to discuss the situation with your healthcare provider. They can provide personalized advice based on your specific health condition and the needs of your baby.
Alcohol
Both Silnafil 25mg Tablet and alcohol can cause vasodilation, which means they can relax and widen blood vessels. Taking this medication with alcohol may lead to an additive effect, potentially causing a further drop in blood pressure.
Liver
If you have any liver conditions or concerns about the safety of Silnafil 25mg Tablet in your specific case, it is essential to discuss them openly with your healthcare provider.
Lungs
Silnafil 25mg Tablet is primarily used to treat pulmonary arterial hypertension (PAH), a condition characterized by high blood pressure in the lungs' arteries. In this context, it is considered safe for the lungs when used as directed by a healthcare professional to manage PAH.
Driving
Some individuals may experience mild side effects that could potentially impact their driving performance. Common side effects may include dizziness, headache, flushing, and blurred vision.
Pregnancy
Pregnant women or women planning to become pregnant should discuss the potential risks and benefits of using Silnafil 25mg Tablet with their healthcare provider. Generally, using it during pregnancy is not recommended.
Side Effects
Silnafil 25mg Tablet causes some side effects like all medications, although not everyone will experience them.
Serious:
Sudden vision loss or vision changes
Sudden hearing loss or changes in hearing
Prolonged and painful erection (priapism)
Severe allergic reactions (rash, itching, swelling of the face, lips, tongue, or throat, difficulty breathing)
Chest pain or heart-related symptoms
Common:
Headache
Flushing (reddening and warming of the face and skin)
Upset stomach or indigestion
Nasal congestion
Dizziness or lightheadedness
Diarrhea
Nausea
Back pain
Muscle pain
Expert Tips
Inform your doctor about your complete medical history, including existing health conditions, medications, and supplements to avoid interactions or contraindications.
Follow your prescribed dosage carefully and do not exceed the recommended amount.
Do not use Silnafil 25mg Tablet with nitrates or nitric oxide donors as it can cause a dangerous drop in blood pressure.
Seek immediate medical attention if you experience sudden vision or hearing changes, prolonged or painful erections, or severe allergic reactions.
Silnafil 25mg Tablet is not approved for use during pregnancy; breastfeeding mothers should consult their doctor before use.
Attend regular follow-up appointments to monitor your response to the medication and address any concerns.
FAQs
Q1.
Can Silnafil 25mg Tablet be used for erectile dysfunction?
No, Silnafil 25mg Tablet is approved for treating pulmonary arterial hypertension (PAH) in adults and children. While it contains the same active ingredient as Viagra (sildenafil), used for erectile dysfunction, this medication is not intended for this purpose. Both medications have different dosages, indications, and approved uses.
Q2.
How quickly does Silnafil 25mg Tablet work?
The onset of action for Silnafil 25mg Tablet can vary from person to person. Generally, it starts working within 30 minutes to an hour after ingestion. However, the effectiveness and duration of action may also depend on individual factors, such as age, health status, and food in the stomach.
Q3.
Can Silnafil 25mg Tablet be used to improve exercise performance in healthy individuals?
No, Silnafil 25mg Tablet is not intended to be used by healthy individuals for enhancing exercise performance. Its primary indication is the treatment of pulmonary arterial hypertension (PAH). Using it without a medical necessity can lead to unnecessary risks and side effects.
Q4.
Is Silnafil 25mg Tablet addictive?
No, Silnafil 25mg Tablet is not considered addictive. It does not lead to physical dependence or withdrawal symptoms. However, it should only be used as prescribed by a healthcare provider for the approved medical conditions.
Q5.
Can Silnafil 25mg Tablet cause priapism in all users?
Priapism (prolonged and painful erection) is a rare but potentially serious side effect of Silnafil 25mg Tablet. Not all users will experience this condition. If an erection lasts for more than four hours, patients should seek immediate medical attention to avoid complications.
Q6.
What should I do if I miss a dose of Silnafil 25mg Tablet?
If you miss a dose of Silnafil 25mg Tablet, take it as soon as you remember. However, if it is almost time for your next scheduled dose, skip the missed dose and continue with your regular dosing schedule. Do not take a double dose to make up for the missed one.
Fact Box
Molecule name | Sildenafil |
Therapeutic class | Pulmonary Hypertension Agent |
Pharmacological class | Phosphodiesterase type 5 (PDE-5) inhibitors |
Indications | Pulmonary arterial hypertension |
References
- Goodman & Gilman’s, The Pharmacological Basis of Therapeutics, Pharmacodynamic: Molecular mechanisms of drug action, 12th edition, 2011, 57.
- KD Tripathi, Essentials of Medical Pharmacology, Androgens and drugs for erectile dysfunction, 7th edition, 2013, 304.
- Upjohn EESV, Electronic medicines compendium (emc), [Revised on Nov 2020] [Accessed on 25th July 2023], https://www.medicines.org.uk/emc/files/pil.2850.pdf
- Pfizer, US Food and Drug Administration, [Revised on March 2014] [Accessed on 26th August 2023], https://www.accessdata.fda.gov/drugsatfda_docs/label/2014/021845s011,022473s004,0203109s002lbl.pdf
Disclaimer
MrMed’s primary intention is to ensure that its consumers get information that experts, accurate and trustworthy, review. The information and contents of this website are for informational purposes only. They are not intended to substitute for professional medical advice, diagnosis, or treatment. Please seek your doctor's advice and discuss all your queries related to any disease or medicine. Do not disregard professional medical advice or delay seeking it because of something you have read on MrMed. Our mission is to support, not replace, the doctor-patient relationship.
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Author Details
Written By
Dr. Vijayalakshmi N.
BDS
Reviewed By
Dr. Tejashwin Adiga
MBBS
Last updated : 11 Jun 2026 | 07:03 AM (IST)
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