Silodel 8 8 mg
Generic: Silodosin
Category: Capsule
Manufacturer: Delta Pharma Ltd.
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Indications
Uses of Silodel 8:
- Benign prostatic hyperplasia
Treating the signs and symptoms of enlarged prostate (benign prostatic hyperplasia [BPH]).
Hypersensitivity.
Therapeutic Class
BPH/ Urinary retention/ Urinary incontinence
Pharmacology
Silodosin is a selective antagonist of post-synaptic alpha-1 adrenoreceptors, which are located in the human prostate, bladder base, bladder neck, prostatic capsule and prostatic urethra. Blockade of these alpha-1 adrenoreceptors can cause smooth muscle in these tissues to relax, resulting in an improvement in urine flow and a reduction in BPH symptoms.
Dosage and Administration
How to use
Silodosin:
Take this medicine in the dose and duration as advised by your doctor. Do not chew, crush or break it.
Silodosin is to be taken with food.
Adult Dose:
Benign Prostatic Hyperplasia
Adults
PO 8 mg once daily with a meal.
Hepatic Impairment
Mild-to-moderate impairment (Child-Pugh class A or B): Dose adjustment not necessary
Severe Impairment: (Child-Pugh class C): Contraindicated (not studied)
Renal Dose:
Renal Impairment
CrCl <50 mL/min: Dose adjustment not necessary
CrCl 30-50 mL/min: 4 mg PO qDay
CrCl <30 mL/min: Contraindicated
Interaction
Ketoconazole, digoxin.
Contraindications
Hypersensitivity.
Side Effects
Common
- Retrograde ejaculation
- Orthostatic hypotension (sudden lowering of blood pressure on standing)
- Dizziness
- Headache
- Nasal congestion (stuffy nose)
- Diarrhea
>10%
Retrograde ejaculation (28%)
1-10%
Diarrhea (3%),Headache (2%),Insomnia ((1-2%),Dizziness (3%),Orthostatic hypotension (3%; increased in patients >65 years),Nasopharyngitis (2%),Nasal congestion (2%),Sinusitis (1-2%)
Pregnancy And Lactation
Pregnancy Category B. Silodosin is not indicated for use in women. An embryo/fetal study in rabbits showed decreased maternal body weight at 200 mg/kg/day (approximately 13-25 times the maximum recommended human exposure or MRHE of Silodosin via AUC). No statistically significant teratogenicity was observed at this dose. Silodosin was not teratogenic when administered to pregnant rats during organogenesis at 1000 mg/kg/day (estimated to be approximately 20 times the MRHE). No maternal or fetal effects were observed at this dose. Rats and rabbits do not produce glucuronidated Silodosin, which is present in human serum at approximately 4 times the level of circulating Silodosin and which has similar pharmacological activity to Silodosin. No effects on physical or behavioral development of offspring were observed when rats were treated during pregnancy and lactation at up to 300 mg/kg/day.
Precautions And Warnings
Precaution:
Impaired hepatic & renal function. Start treatment w/ a low dose (2 mg/dose).
Overdose Effects
Silodosin was evaluated at doses of up to 48 mg/day in healthy male subjects. The dose-limiting adverse event was postural hypotension. Should overdose of Silodosin lead to hypotension, support of the cardiovascular system is of first importance. Restoration of blood pressure and normalization of heart rate may be accomplished by maintaining the patient in the supine position. If this measure is inadequate, administration of intravenous fluid should be considered. If necessary, vasopressors could be used, and renal function should be monitored and supported as needed. Dialysis is unlikely to be of significant benefit since Silodosin is highly (97%) protein bound.
Storage Conditions
Store at below 30°C in a dry place protected from light. Keep out of reach of Children.
Drug Classes
BPH/ Urinary retention/ Urinary incontinence
Mode of Action
Selectively blocks postsynaptic alpha-1 adrenoreceptors located in the prostate, bladder base, bladder neck, prostatic capsule, and prostatic urethra.
Pregnancy Category
Pregnancy Category B. Silodosin is not indicated for use in women. An embryo/fetal study in rabbits showed decreased maternal body weight at 200 mg/kg/day (approximately 13-25 times the maximum recommended human exposure or MRHE of Silodosin via AUC). No statistically significant teratogenicity was observed at this dose. Silodosin was not teratogenic when administered to pregnant rats during organogenesis at 1000 mg/kg/day (estimated to be approximately 20 times the MRHE). No maternal or fetal effects were observed at this dose. Rats and rabbits do not produce glucuronidated Silodosin, which is present in human serum at approximately 4 times the level of circulating Silodosin and which has similar pharmacological activity to Silodosin. No effects on physical or behavioral development of offspring were observed when rats were treated during pregnancy and lactation at up to 300 mg/kg/day.
Samm Care