Tadalafil 20 mg Biopharma Limited Unit Price: ৳ 55.00 (1 x 4: ৳ 220.00) Strip Price: ৳ 220.00 Indications Penfil is indicated in- Pharmacology Tadalafil is a selective phosphodiesterase type 5 (PDE5) inhibitor. Inhibition of PDE5 increases cGMP in smooth muscle cells. cGMP causes smooth muscle relaxation and increased blood flow into the corpus cavernosum, causing penile erection. […]