Mutation Research/Genetic Toxicology and Environmental Mutagenesis 2015, 777 , 43-53. Jennifer Julis, Stuart A. Bartlett, Sabrina Baader, Nicola Beresford, Edwin J.
| Step | Description | Equipment Used | Quality Control Measures |
|---|---|---|---|
| Synthesis | Chemical synthesis of sildenafil citrate | Reactors, mixers | Purity testing, purity > 99% |
| Drying | Removal of solvents | Rotary evaporator | Moisture content analysis |
| Packaging | Filling into bottles or blisters | Filling machines | Seal integrity, labeling accuracy |
Routledge, Catherine S.
Brand names
Take sildenafil tablet or oral suspension 3 times a day, about 4 to 6 hours apart. Take at approximately the same times every day. Sildenafil oral suspension will be mixed for you by your pharmacist. Do not mix with other medicines or flavorings. Shake the oral suspension (liquid) before you measure a dose.
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Use the dosing syringe provided, or use a medicine dose-measuring device (not a kitchen spoon). When sildenafil is used for ED, it is used as needed, so you are not likely to miss a dose. If you are taking sildenafil for PAH and you miss a dose, take the medicine as soon as you can, but skip the missed dose if it is almost time for your next dose. Do not take two doses at one time. If you take too much sildenafil, call your doctor or go to the nearest hospital emergency room. J. Cazin, David J. Cole-Hamilton.
- Sildenafil 50mg dosage is generally effective and well-tolerated.
- It is recommended to use sildenafil at the same time each day if needed regularly.
- Never share your medication with others; it is prescribed specifically for you.
- Persistent or severe side effects should be reported to a healthcare provider.
- Electronic and physical stores require a prescription for purchasing sildenafil.
- Proper use of sildenafil can improve confidence and quality of life.
- The medication may interact with certain antihypertensive drugs.
- Lifestyle factors like smoking cessation can improve erectile function.
- Sildenafil is not a hormone therapy; it acts locally in the blood vessels.
- It should not be used with recreational drugs containing nitrates or amyl nitrates.
- Medical history
Selective ethenolysis and oestrogenicity of compounds from cashew nut shell liquid. Anacardic Acid from Brazilian Cashew Nut Trees Reduces Dentine Erosion.
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Caries Research 2014, 48 (6) , 549-556. Open Journal of Applied Sciences 2014, 04 (06) , 360-365.
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Cashew Nut Shell Liquid (CNSL) as a Source of Drugs for Alzheimer’s Disease. Chandi C. Malakar, Virender Singh, Nisha Devi, Antriksh Gupta, Raghuram Gujjarappa. Synthesis of Pyrazolo[4,3-c]quinolines and the C-C Bond Cleavage during Reductive Cyclization. La(OTf) 3 -catalysed one-pot synthesis of pyrazole tethered imidazo[1,2- a ]azine derivatives and evaluation of their light emitting properties.
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New Journal of Chemistry 2020, 44 (3) , 684-694. Molecular evaluation of anti-inflammatory activity of phenolic lipid extracted from cashew nut shell liquid (CNSL). BMC Complementary and Alternative Medicine 2018, 18 (1) Nisha Devi, Asim K. Jana, Virender Singh. Assessment of novel pyrazolopyridinone fused imidazopyridines as potential antimicrobial agents. Synthesis and antibacterial activity of sulfonamide derivatives at C-8 alkyl chain of anacardic acid mixture isolated from a natural product cashew nut shell liquid (CNSL).
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Karbala International Journal of Modern Science 2018, 4 (1) , 164-170. An Expeditious Approach for the Synthesis of β‐Carboline−Pyrazole‐Based Molecular Hybrids. Asian Journal of Organic Chemistry 2018, 7 (2) , 383-394. 4‐Formyl‐Pyrazole‐3‐Carboxylate: A Useful Aldo‐X Bifunctional Precursor for the Syntheses of Pyrazole‐fused/Substituted Frameworks. Journal of Heterocyclic Chemistry 2018, 55 (2) sildenafil pink pill , 373-390.
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In(OTf) 3 ‐HBF 4 Assisted Multicomponent Approach for One‐Pot Synthesis of Pyrazolopyridinone Fused Imidazopyridines. African Journal of Biotechnology 2016, 15 (35) , 1855-1863. Potential Biological Applications of Bio-Based Anacardic Acids and Their Derivatives. International Journal of Molecular Sciences 2015, 16 (4) , 8569-8590. Genotoxic and cytostatic effects of 6-pentadecyl salicylic anacardic acid in transformed cell lines and peripheral blood mononuclear cells. Journal of Chemical Sciences 2012, 124 (3) , 723-730. Emerging Roles of Anacardic Acid and Its Derivatives: A Pharmacological Overview. Basic & Clinical Pharmacology & Toxicology 2012, 110 (2) , 122-132. Synthesis and Antibacterial Activity of Urea and Thiourea Derivatives of Anacardic Acid Mixture Isolated from A Natural Product Cashew Nut Shell Liquid (CNSL). International Journal of Organic Chemistry 2012, 02 (03) , 267-275. Synthesis and Antibacterial Activity of Urea and hiourea Derivatives at C-8 Alkyl Chain of Anacardic Acid Mixture Isolated from a Natural Product Cashew Nut Shell Liquid (CNSL). International Journal of Organic Chemistry 2011, 01 (04) , 167-175. Bioorganic & Medicinal Chemistry 2008, 16 (19) , 8889-8895.
- Sildenafil 50mg is often preferred for first-time users to gauge effectiveness.
- It is important to follow the prescribed dosage for safety and efficacy.
- Overuse of sildenafil can lead to serious health risks and complications.
- The medication should be taken in the prescribed dose and not altered without medical advice.
- Some foods and medications can affect how sildenafil works in the body.
- Erectile dysfunction can have underlying health causes that require medical attention.
- Sildenafil does not cure erectile dysfunction; it only helps manage symptoms.
- Using sildenafil without a proper diagnosis can mask underlying health issues.
- It is essential to report any adverse reactions to a healthcare professional immediately.
- Men with heart conditions should consult a doctor before using sildenafil.
- Sildenafil 50mg is a common starting dose for many patients.
Characterization of novel inhibitors of histone acetyltransferases. Molecular Cancer Therapeutics 2007, 6 (9) , 2391-2398.
Toxicity and side effects
Revatio is distributed by Pfizer Labs, Division of Pfizer Inc., NY, NY 10017. Viagra is distributed by Pfizer Labs, Division of Pfizer Inc., NY, NY 10017. It is distributed by: IBSA Pharma Inc, Parsippany, NJ 07054 USA. Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances. Anacardic acid (6-pentadecylsalicylic acid), a major component of cashew nut shell liquid, consists of a heterogeneous mixture of monoenes, dienes, and trienes.
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The enes mixture of anacardic acid was hydrogenated to a saturated compound. Using saturated anacardic acid as a starting material, analogues of sildenafil [a potent phosphodiesterase-5 (PDE5) inhibitor and an orally active drug for the treatment of erectile dysfunction] were synthesized, to observe the effect of the pentadecyl side chain on PDE5 inhibition. The synthesized compounds were characterized by spectral studies and tested for PDE5 inhibition, and the results were compared with those obtained with sildenafil. Keywords: Anacardic acid; cashew nut shell liquid; sildenafil; PDE5 inhibitor; erectile dysfunction This article is cited by 31 publications. Nanorod-Engineered Sm2O3 Modified Screen-Printed Carbon Electrodes for Electrochemical Sensing of Sildenafil, Nitrite, and Paracetamol. European Journal of Medicinal Chemistry 2007, 42 (3) , 420-424.
- Sildenafil 50mg is available by prescription or over-the-counter in some regions.
- It is not a treatment for erectile dysfunction caused by psychological issues alone.
- Women and children should not use sildenafil unless prescribed by a doctor.
- Sildenafil interacts with nitrates, which can cause dangerous blood pressure drops.
- Alcohol consumption can reduce the effectiveness of sildenafil and increase side effects.
- Storage of sildenafil should be in a cool, dry place away from children.
- The medication is typically taken only once per day to avoid overdose.
- Some people may experience visual disturbances as a side effect.
- Sildenafil may be used with other erectile dysfunction medications under medical supervision.
- The onset of action is usually within 30 to 60 minutes after ingestion.
- Sildenafil 50mg is preferred for men who find higher doses cause adverse effects.
Synthesis and Evaluation of PDE5 Inhibitory Activity of Novel Pyrido[2′,1′:5,1]pyrazolo[4,3‐ d ]pyrimidin‐4‐one Derivatives.
Overdose/Missed Dose
Tell your doctor about all other medications you use for erectile dysfunction. 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. Other drugs may interact with sildenafil, including prescription and over-the-counter medicines, vitamins, and herbal products. Not all possible drug interactions are listed here.
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Store sildenafil 25 mg tablets sildenafil tablets and oral film at room temperature, between 20°C and 25°C (68°F and 77°F). Store sildenafil reconstituted oral suspension below 30°C (86°F) or in a refrigerator between 2°C to 8°C (36°F to 46°F). Throw away the reconstituted oral suspension after 60 days. Active ingredient: sildenafil citrateInactive ingredients: dextrose and water for injection. Contains no ingredients made from gluten-containing grain (eg, wheat, barley, or rye). Chinese Journal of Chemistry 2007, 25 (2) , 241-245. Article Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days. Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.
Brief Description
Drinking alcohol with sildenafil can cause side effects. Grapefruit juice and products may interact with sildenafil, leading to unwanted side effects. Avoid using any other medicines to treat impotence, such as alprostadil or yohimbine, without first talking to your doctor. Tell your healthcare provider about all the medicines you take, including prescription and over-the-countermedicines, vitamins, and herbal supplements. Sildenafil may affect the way other medicines work, and other medicines may affect the way sildenafil works, causing side effects.
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Especially tell your healthcare provider if you take: Nitrates for chest pain or heart problems. This includes nitroglycerin, isosorbide dinitrate, and isosorbide mononitrate. Nitrates are also found in some recreational drugs such as amyl nitrate or nitrite ("poppers"). Taking sildenafil with a nitrate medicine can cause a sudden and serious decrease in blood pressure Alpha-blockers are sometimes prescribed for prostate problems orhigh blood pressure. In some patients, the use of sildenafil with alpha-blockers can lead to a drop in blood pressure or fainting Other drugs to treat high blood pressure or a prostate disorder Medicines to treat HIV, such as protease inhibitors, such as ritonavir and saquinavir Some types of oral antifungal medicines, such as ketoconazole and itraconazole Some types of antibiotics, such as erythromycin Other medicines that treat high blood pressure Medicines or treatments for ED, such as avanafil (Stendra), tadalafil (Cialis), or vardenafil (Levitra). The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online.
- Sildenafil can cause side effects such as dizziness, vision changes, or priapism.
- Priapism is a prolonged erection that requires urgent medical attention.
- Patients should avoid grapefruit juice while taking sildenafil due to interactions.
- The medication is contraindicated in those with severe cardiovascular conditions.
- Sildenafil is not recommended for use with certain antidepressants or blood pressure medicines.
- It is important to hydrate well and avoid excessive alcohol intake.
- In some cases, it can be used to treat pulmonary arterial hypertension.
- The medication can be prescribed even if erectile dysfunction is secondary to other conditions.
- Discontinue use and consult a doctor if side effects or allergic reactions occur.
- Sildenafil 50mg is a moderate dose suitable for many men with ED.
- Regular medical checkups are advised to monitor health while on sildenafil.
Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. [0055] This example has prepared a kind of sildenafil citrate oral tablet, and in this tablet, preparation raw material comprises: [0056] Sildenafil citrate 25g, starch 200g, lactose 200g, hydroxymethylcellulose 15g, crospovidone 30g, magnesium stearate 5g, hydroxysugar chloride 1g.
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ACS Applied Nano Materials 2026, 9 (3) , 1412-1424. Design, Synthesis, and Evaluation of Cytotoxic Effects of Functional Fatty Acid Derivatives as Potential Antineoplastic Agents for Breast Cancer. Iranian Journal of Pharmaceutical Research 2025, 24 (1) Nature’s Impostors: Electrochemical Detection of Sildenafil in Natural Products. Highly sensitive colorimetric and paper-based detection for sildenafil in functional food based on monodispersed spherical magnetic graphene composite nanozyme. Synthesis of sildenafil and its derivatives bearing pyrazolo‐pyrimidinones scaffold.
Problems solved by technology
Bulletin of the Korean Chemical Society 2024, 45 (9) , 759-763. Synthesis of pyrazolo-azepinone derivatives via Morita–Baylis–Hillman chemistry as potent antimicrobial agents. New Journal of Chemistry 2024, 48 (6) , 2608-2623. Anacardic acid isolated from cashew nut shells liquid: A potential precursor for the synthesis of anthraquinone dyes. Exhaustive valorization of cashew nut shell waste as a potential bioresource material.
