Indications
Tiagra is used to treat erectile dysfunction (ED), the symptoms of an enlarged prostate (benign prostatic hyperplasia, or BPH), and cases where both conditions occur together.
⚠️ Always consult a registered physician before taking any medicine.
Pharmacology
Tadalafil works by selectively blocking an enzyme called phosphodiesterase type 5 (PDE5). Blocking this enzyme raises levels of a signalling molecule called cGMP in smooth muscle cells. Higher cGMP relaxes smooth muscle and increases blood flow into the penis, which produces an erection.
PDE5 is also found in the smooth muscle of the prostate and bladder wall. By blocking PDE5 in these tissues as well, tadalafil raises cGMP levels there too, relaxing the smooth muscle of the prostate and bladder. This relaxation can improve blood flow to the urinary tract and help the bladder neck open more widely, making it easier to pass urine.
Pregnancy & Breastfeeding
Tadalafil falls under pregnancy category B as assigned by the USFDA. It is only recommended for use during pregnancy when the benefit outweighs the risk. There is no data on whether Tadalafil passes into human breast milk, so caution is advised when giving it to nursing mothers.
⚠️ Talk to your doctor before taking any medicine during pregnancy or while breastfeeding.
Dosage Reference
⚠️ Reference ranges from official sources only. Consult your doctor for personalized dosing.
Side Effects & Interactions
Side Effects
No side-effect data recorded yet.