Tamsulosin
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tamsulosin FDA prescribing information indications warnings dosage
Tamsulosin is an alpha-1 adrenergic blocker used to improve urinary symptoms from an enlarged prostate, also called benign prostatic hyperplasia (BPH). It relaxes smooth muscle in the prostate and bladder neck, making urine flow easier. It does not shrink the prostate or treat high blood pressure.
- Typical adult BPH dose: 0.4 mg once daily, about 30 minutes after the same meal each day. If response is inadequate after 2 to 4 weeks, a prescriber may increase it to 0.8 mg daily. Swallow the capsule whole. DailyMed prescribing information
- Common adverse effects: dizziness, particularly on standing; runny nose; headache; fatigue; and ejaculation changes, including reduced or absent semen.
- Important cautions: It can cause postural low blood pressure and fainting, especially when starting or changing the dose. Rise slowly and use care with driving until you know its effects.
- Interactions: Risk of low blood pressure can increase with other alpha-blockers, erectile dysfunction drugs such as sildenafil or tadalafil, and some medicines that strongly inhibit CYP3A4, such as ketoconazole.
- Eye surgery: Tell an ophthalmologist before cataract or glaucoma surgery if you take or have previously taken tamsulosin because of intraoperative floppy iris syndrome.
- Urgent help: Seek urgent care for fainting, facial swelling or breathing difficulty, or a prolonged painful erection.
For urinary symptoms due to BPH, 0.4 mg is generally the preferred starting formulation because adverse effects and treatment discontinuation rise with higher doses. Campbell-Walsh-Wein Urology, section “Tamsulosin.”
Alkaston- B6
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pyridoxine nephrolithiasis
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Alkaston B6 composition uses manufacturer
Alkaston-B6 is a urinary alkalinising oral solution, commonly used as part of kidney-stone prevention or treatment.
Usual composition per 5 mL
- Potassium citrate 1100 mg
- Magnesium citrate 375 mg
- Pyridoxine (vitamin B6) 20 mg
This formulation is marketed by Ipca Laboratories. Product composition
What it does
- Makes urine less acidic and raises urinary citrate.
- May help prevent certain stones, particularly uric-acid and calcium-oxalate stones, depending on the cause.
- Can reduce burning caused by acidic urine, but it is not an antibiotic and does not treat a urinary infection by itself.
How to take it
- Take only in the dose and duration prescribed.
- Shake well, dilute in water if instructed, and take after meals.
- Maintain adequate water intake unless a clinician has restricted your fluids.
Common side effects
Nausea, bloating, stomach discomfort, loose stools, or vomiting.
Use caution or seek medical advice before taking it if you have
- Kidney disease, especially reduced kidney function
- High potassium levels, heart failure, or serious heart disease
- A history of stomach ulcer or bowel obstruction
- Medicines that raise potassium, such as ACE inhibitors, ARBs, spironolactone, or potassium supplements
Do not self-treat persistent urinary pain. Fever, chills, vomiting, inability to pass urine, severe flank pain, or blood in urine needs prompt medical assessment.
Types of kidney stones
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NIDDK kidney stones types calcium oxalate phosphate uric acid struvite cystine
The main types of kidney stones are:
| Type | Key features and common associations |
|---|---|
| Calcium oxalate | Most common. Associated with low fluid intake, high urinary calcium or oxalate, low urinary citrate, high salt intake, and sometimes bowel disease. |
| Calcium phosphate | Also a calcium stone. More likely in alkaline urine and can be associated with certain kidney tubular disorders or recurrent urinary infection. |
| Uric acid | Forms in persistently acidic urine. Associated with gout, obesity, diabetes/metabolic syndrome, dehydration, and high purine intake such as organ meat, red meat, and some seafood. It is often dissolvable by medically raising urine pH. |
| Struvite | Magnesium-ammonium-phosphate stone caused by urinary infection with urease-producing bacteria, such as Proteus. Can grow rapidly into large branching "staghorn" stones. |
| Cystine | Rare, inherited condition called cystinuria. Typically presents earlier in life and tends to recur. |
| Other rare stones | Drug-related stones, xanthine, 2,8-dihydroxyadenine, and ammonium urate stones. |
Frequency: Calcium-containing stones account for about 80% of stones. Calcium oxalate alone accounts for roughly 60%, while uric acid and struvite stones each account for about 7%; cystine stones are uncommon. Campbell-Walsh-Wein Urology, section “Classification of Nephrolithiasis.”
Imaging clue: Most calcium, struvite, and cystine stones are visible on plain X-ray. Uric-acid stones are typically radiolucent on plain X-ray, although all common stone types are usually detected on non-contrast CT.
The stone type should ideally be confirmed by laboratory analysis of a passed or removed stone. A 24-hour urine test helps identify why recurrent stones are forming. The NIDDK stone overview gives a patient-friendly summary of these categories.
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