Alphacept 4 Tablet (Silodosin 4 mg): Complete Medicine Guide
Clinical Reference Standards: CDSCO (Central Drugs Standard Control Organisation), Indian Pharmacopoeia (IP) & WHO | Last Updated: September 2026
When to Call Your Doctor IMMEDIATELY
- Fainting or loss of consciousness
- Prolonged and painful erection lasting more than 4 hours
- Severe dizziness or lightheadedness
- Swelling of face, lips, or throat
- Difficulty breathing
- Chest pain or irregular heartbeat
- Yellowing of skin or eyes
- Blood in urine
If experiencing severe symptoms, call emergency services immediately.
What is sildonyx 4 capsule used for?
This medicine contains Silodosin 4 mg, an alpha-1A adrenergic receptor antagonist used to treat benign prostatic hyperplasia (BPH) in men. It relaxes prostate and bladder neck muscles to improve urine flow and reduce symptoms like weak stream and frequent urination. It is taken orally with food, usually once or twice daily as prescribed.
- Generic Name: Silodosin (4mg)
- Manufacturer: Ignyx Pharmaceuticals
- Form: Allopathy
- Pregnancy Category: Consult doctor
- Prescription Required: Yes
🇮🇳 sildonyx 4 capsule के बारे में (Hindi Summary)
उपयोग: यह दवा सिलोडोसिन 4 मिलीग्राम युक्त है और मुख्य रूप से पुरुषों में बेनाइन प्रोस्टेटिक हाइपरप्लासिया (बीपीएच) के लक्षणों के इलाज के लिए उपयोग की जाती है। बीपीएच में प्रोस्टेट ग्रंथि बढ़ जाती है जिससे पेशाब करने में कठिनाई, कमजोर धार, बार-बार पेशाब आना और रात में पेशाब आना जैसी समस्याएं होती हैं। यह दवा प्रोस्टेट और मूत्राशय की गर्दन की मांसपेशियों को आराम देकर पेशाब की धार को बेहतर बनाती है और लक्षणों को कम करती है। यह दवा बीपीएच का इलाज नहीं है और प्रोस्टेट को छोटा नहीं करती, बल्कि लक्षणों में राहत देती है। इसे आमतौर पर भोजन के साथ दिन में एक बार लिया जाता है। यह दवा केवल पुरुषों के लिए है और महिलाओं या बच्चों को नहीं दी जानी चाहिए।
साइड इफेक्ट्स: इस दवा के सामान्य दुष्प्रभावों में रेट्रोग्रेड इजाकुलेशन (सूखा संभोग), चक्कर आना, खड़े होने पर ब्लड प्रेशर कम होना, नाक बंद होना और सिरदर्द शामिल हैं। रेट्रोग्रेड इजाकुलेशन में वीर्य मूत्राशय में चला जाता है, जो हानिकारक नहीं है लेकिन प्रजनन क्षमता को प्रभावित कर सकता है। चक्कर आना और बेहोशी जैसे गंभीर दुष्प्रभाव कभी-कभी हो सकते हैं। यदि आपको लंबे समय तक इरेक्शन, बेहोशी, या एलर्जी की प्रतिक्रिया हो तो तुरंत डॉक्टर से संपर्क करें।
सुरक्षा सलाह: इस दवा को लेने से पहले अपने डॉक्टर को अपनी सभी दवाओं, एलर्जी, गुर्दे या लीवर की समस्या के बारे में बताएं। यह दवा चक्कर और बेहोशी का कारण बन सकती है, इसलिए वाहन चलाने या मशीनरी चलाने से बचें जब तक कि आपको इसका असर पता न चल जाए। बैठने या लेटने से उठते समय धीरे-धीरे उठें। इसे भोजन के साथ लें। शराब का सेवन न करें क्योंकि इससे चक्कर बढ़ सकते हैं। महिलाओं और बच्चों को यह दवा नहीं देनी चाहिए। डॉक्टर की सलाह के बिना दवा शुरू या बंद न करें।
💊 sildonyx 4 capsule Uses & Benefits
[{"condition":"Benign Prostatic Hyperplasia (BPH)","description":"This medicine is used to relieve symptoms of BPH such as weak urine stream, hesitancy, frequent urination, and nocturia by relaxing the smooth muscles in the prostate and bladder neck.","evidence":"Well-established"}]
Off-label uses: [{"condition":"Ureteral stone expulsion","description":"Sometimes used off-label to help expel ureteral stones by relaxing the ureteral smooth muscle, but evidence is limited and not universally accepted.","evidence":"Limited"}]
Primary treatment for: Benign Prostatic Hyperplasia (BPH)
Also treats: Lower urinary tract symptoms (LUTS), Nocturia, Urinary hesitancy, Weak urine stream
📋 Drug Information
| Generic Name(s) | Silodosin (4mg) |
| Brand Name | sildonyx 4 capsule |
| Manufacturer | Ignyx Pharmaceuticals |
| Packaging / Form | Varies by brand (Allopathy) |
| Therapeutic Class | UROLOGY |
| Action Class | Uroselective adrenergic receptor(α1a) antagonist |
| Route of Administration | Oral |
| Storage | Store at room temperature between 15°C and 30°C (59°F to 86°F). Keep in the original container, tightly closed. Protect from moisture and light. |
| Shelf Life | 24 months from the date of manufacture. |
| WHO Guideline | Not established from the available information. |
| ICMR Guideline | Not established from the available information. |
👨⚕️ Doctor's Practical Tips
Evidence-based practical advice from experienced clinicians
🔍 Is This Medicine Right for Your Symptom?
Educational reference. Always consult a doctor for diagnosis.
🔬 How This Medicine Works (Pharmacology)
Pharmacokinetics
How It Works
This medicine works by selectively blocking alpha-1A adrenergic receptors located in the prostate, bladder neck, and urethra. These receptors are responsible for smooth muscle contraction in these areas. By blocking them, this medicine causes relaxation of the smooth muscles, leading to improved urine flow and reduced BPH symptoms. It has greater selectivity for alpha-1A receptors compared to alpha-1B receptors found in blood vessels, which may result in fewer blood pressure effects, although they can still occur.
Mechanism Steps
💡 How to Take sildonyx 4 capsule
Strength: This medicine is available as a 4 mg immediate-release tablet for oral administration.
Dosage Information
| Adult Dosage | The recommended dose of this medicine for adult men with benign prostatic hyperplasia is 8 mg once daily, but this product contains 4 mg per tablet. Therefore, the usual dose may be one 4 mg tablet twice daily or as prescribed by your doctor. However, the standard approved dose is 8 mg once daily, so your doctor may prescribe two 4 mg tablets once daily. The dose must be individualized by a qualified clinician based on indication, age, renal and hepatic function. For moderate renal impairment, the dose is reduced to 4 mg once daily. Take with food to reduce the risk of orthostatic hypotension. |
| Pediatric Dosage | Pediatric dosing is not established from available information. This medicine is not indicated for use in children. Consult a pediatrician for any concerns. |
| Elderly Dosage | No dose adjustment is required based on age alone. However, elderly patients may be more sensitive to the effects of this medicine, especially orthostatic hypotension. Use with caution and monitor blood pressure. |
| Renal Impairment | For patients with moderate renal impairment (CrCl 30-50 mL/min), the dose should be reduced to 4 mg once daily. This medicine is contraindicated in patients with severe renal impairment (CrCl <30 mL/min). |
| Hepatic Impairment | No dose adjustment is required for mild to moderate hepatic impairment. This medicine is contraindicated in severe hepatic impairment. |
| Maximum Daily Dose | The maximum recommended daily dose is 8 mg. However, this product is 4 mg, so the maximum would be two 4 mg tablets per day. Do not exceed the dose prescribed by your doctor. |
Dosage Timeline
🍽️ Food Timing Guide
⏰ What to Do If You Miss a Dose
⚠️ Side Effects of sildonyx 4 capsule
✅ Common Side Effects
🚨 Serious Side Effects
⚠️ Rare Side Effects
Consult your doctor if you experience any unusual symptoms.
🔬 Drug Interactions
| Drug | Severity | Effect |
|---|---|---|
| Ketoconazole | Major | |
| Clarithromycin | Major | |
| Ritonavir | Major | |
| Prazosin | Major | |
| Terazosin | Major | |
| Sildenafil | Major | |
| Tadalafil | Major | |
| Diltiazem | Moderate | |
| Verapamil | Moderate | |
| Amlodipine | Moderate |
🚨 Major Interactions
- Strong CYP3A4 inhibitors (e.g., ketoconazole, clarithromycin, ritonavir)
- Other alpha-blockers (e.g., prazosin, terazosin)
- Phosphodiesterase-5 inhibitors (e.g., sildenafil, tadalafil)
⚡ Moderate Interactions
- Moderate CYP3A4 inhibitors (e.g., diltiazem, verapamil)
- Antihypertensives
🍷 Alcohol Interaction
Alcohol may increase the risk of dizziness and orthostatic hypotension. It is advisable to avoid or limit alcohol consumption while taking this medicine.
🔎 Check Your Other Medicines
Educational tool. Always confirm with your doctor or pharmacist.
🛡️ Safety & Warnings
🚫 Contraindications
["Hypersensitivity to silodosin or any component of the formulation","Severe renal impairment (CrCl
⚠️ Warnings & Precautions
["Orthostatic hypotension and syncope: May occur, especially when starting treatment or after dose increase. Take with food and rise slowly.","Intraoperative floppy iris syndrome (IFIS): Inform your eye surgeon before cataract surgery.","Priapism: Rare but serious; seek immediate medical attention if erection lasts more than 4 hours.","Renal impairment: Dose adjustment required for moderate impairment; contraindicated in severe impairment.","Hepatic impairment: Use with caution in severe impairment.","Prostate cancer: BPH and prostate cancer can coexist; rule out cancer before starting therapy.","Women and children: Not indicated for use in women or children."]
🤱 Lactation Safety
This medicine is not indicated for use in women. It is not known whether this medicine is excreted in human breast milk. Because of the potential for serious adverse reactions in nursing infants, a decision should be made to discontinue nursing or the drug, taking into account the importance of the drug to the mother. However, this medicine is not for use in women.
💊 Overdose Management
Overdose of this medicine may cause severe hypotension, dizziness, and fainting. If overdose is suspected, seek emergency medical attention immediately. Treatment is supportive, including maintenance of blood pressure and heart rate. Dialysis is unlikely to be helpful because this medicine is highly protein-bound.
⏰ Missed Dose
If you miss a dose of this medicine, take it as soon as you remember. If it is almost time for your next dose, skip the missed dose and continue with your regular schedule. Do not take two doses at the same time to make up for a missed dose.
Additional Safety Advice
Before taking this medicine, inform your doctor if you have any allergies, especially to silodosin or other alpha-blockers. Tell your doctor if you have kidney or liver problems, low blood pressure, or if you are scheduled for cataract surgery. This medicine can cause dizziness and fainting; avoid driving or operating heavy machinery until you know how it affects you. To reduce the risk of dizziness, get up slowly from a sitting or lying position. Take this medicine with food to reduce the chance of low blood pressure. Do not take this medicine if you are a woman, especially if you are pregnant or breastfeeding. This medicine is not for use in children. Avoid drinking alcohol while taking this medicine as it can increase dizziness. Inform your doctor about all other medications you are taking, especially other alpha-blockers, blood pressure medicines, and erectile dysfunction drugs. Do not start or stop this medicine without consulting your doctor. If you miss a dose, take it as soon as you remember, but if it is almost time for your next dose, skip the missed dose and continue with your regular schedule. Do not double the dose. Store this medicine at room temperature away from moisture and heat. Keep it out of reach of children.
👴 Special Considerations for Elderly
💡 For Patients Above 65
Elderly patients may be more sensitive to the blood pressure-lowering effects of this medicine. Monitor for dizziness and falls. No dose adjustment is required based on age alone, but caution is advised.
🤰 Pregnancy Planning (TTC)
This medicine is not for use in women. If you are a woman planning pregnancy, this medicine is not applicable. If a man is taking this medicine and his partner is planning pregnancy, retrograde ejaculation may affect fertility. Consult your doctor for advice.
🏥 Post-Surgery Considerations
If you are scheduled for surgery, especially cataract surgery, inform your surgeon that you are taking this medicine. It may need to be stopped temporarily before surgery to prevent intraoperative floppy iris syndrome. Follow your doctor's instructions.
🦷 Dental Procedures
No specific precautions for dental procedures, but inform your dentist about all medications you are taking. If you experience dizziness, avoid sudden movements in the dental chair.
💚 Lifestyle Tips for Better Results
🏋️ Exercise Considerations
This medicine may cause dizziness and orthostatic hypotension, so avoid strenuous exercises that require sudden changes in position. Stay hydrated during exercise. If you feel dizzy, stop and sit down. Consult your doctor before starting any new exercise regimen.
🥗 Diet Recommendations
💼 Impact on Daily Work & Life
This medicine may cause dizziness, especially when standing up quickly. Avoid driving or operating heavy machinery until you know how it affects you. It may also cause retrograde ejaculation, which can affect sexual function but is not harmful. Discuss any concerns with your doctor.
🛑 When to Stop This Medicine
Do not stop taking this medicine without consulting your doctor. If you experience serious side effects such as fainting, priapism, or severe allergic reactions, seek immediate medical attention and your doctor may advise stopping the medicine. If you plan to stop, your doctor will provide guidance on tapering or alternative treatments.
📅 Long-Term Use Effects
Long-term use of this medicine is generally safe for BPH. However, it does not cure BPH, and symptoms may return if stopped. Regular follow-up with your doctor is important to monitor efficacy and side effects. Long-term use may be associated with an increased risk of intraoperative floppy iris syndrome during cataract surgery, so inform your eye surgeon. Periodic monitoring of renal and hepatic function may be advised.
🌿 Non-Medicine Approaches
These can complement medicine but do not replace prescribed treatment.
Weight loss, fluid management, and avoiding bladder irritants can help reduce BPH symptoms.
Evidence: Well-establishedTamsulosin, alfuzosin, or doxazosin may be alternatives if this medicine is not suitable.
Evidence: Well-establishedFinasteride or dutasteride can shrink the prostate over time but take months to work.
Evidence: Well-establishedTURP or other procedures may be considered for severe symptoms.
Evidence: Well-established💉 Vaccination Considerations
💉 If You're Getting Vaccinated
No specific interactions with vaccines are known. However, consult your doctor before receiving any vaccine while taking this medicine.
📦 Storage Guide
✅ DO
Store at room temperature (15-30°C)
❌ DON'T
Do not refrigerate unless specified
✅ DO
Keep in original container
❌ DON'T
Do not transfer to unmarked containers
✅ DO
Keep away from direct sunlight
❌ DON'T
Do not store in bathroom cabinet
✈️ Traveling with This Medicine
When traveling, carry this medicine in its original packaging with a copy of your prescription. Store it at room temperature and protect it from moisture and heat. If crossing time zones, adjust the timing of your dose gradually to maintain a consistent schedule. Check customs regulations for carrying prescription medications. Always carry enough supply for your trip and keep it in your carry-on luggage.
💰 Cost Analysis & Savings
👥 Real Patient Stories
Educational, anonymized scenarios. Individual results may vary.
💬 Questions Patients Often Ask
A: You may notice some improvement in urinary symptoms within a few days, but it may take up to 2 weeks for the full effect.
A: Yes, but it may increase the risk of low blood pressure. Your doctor may need to adjust doses and monitor your blood pressure.
A: Yes, retrograde ejaculation is usually reversible after stopping the medicine. However, consult your doctor if it concerns you.
A: If you have moderate kidney problems, your dose may need to be reduced. It is not recommended for severe kidney problems.
🤔 Common Patient Concerns
🔄 Substitutes for sildonyx 4 capsule
View AllAlternative brands with exact same active ingredient:
-
solosrin 4mg tabletShrinivas Gujarat Laboratories Pvt Ltd ₹42.02 62.6% CHEAPER
-
davaindia silodosin 4mg capsuleDavaindia Generic Pharmacy ₹70.00 37.8% CHEAPER
-
stayhappi silodosin 4mg tabletSarvagunaushdhi Pvt Ltd ₹90.63 19.4% CHEAPER
-
flospurt 4mg capsuleZydus Cadila ₹99.00 12% CHEAPER
-
silomax 4mg capsuleLividus Pharmaceuticals Pvt Ltd ₹101.25 10% CHEAPER
Medical Note: Always consult your doctor before switching medications.
🛑 Myths vs. Facts
- Myth: This medicine can cure BPH permanently.
Fact: This medicine only relieves symptoms; it does not cure or shrink the prostate. Lifestyle changes and other treatments may be needed. - Myth: This medicine is safe for women.
Fact: This medicine is not for use in women, especially during pregnancy, as it can harm the fetus. - Myth: You can stop taking this medicine once symptoms improve.
Fact: Symptoms may return if you stop. Consult your doctor before discontinuing.
🔄 Alternative Options
Generic Alternatives
- Silodosin 4 mg tablet
Brand Alternatives
- Alphacept 4 tablet