When erectile dysfunction is psychological , options such as therapy or making certain changes to your habits may help you to stay hard without medication. Cialis helps you get and keep stronger erections with a daily or as-needed pill. This is a very uncommon side effect of PDE5 inhibitors. In some cases, you may need to adjust your dosage of Levitra to use it safely with these medications. Place the tablet in your mouth and allow it to dissolve without chewing. An erection will not occur just by taking a pill. Priapism Priapism is a type of painful, prolonged erection that lasts for four hours or longer. · Vardenafil is used to treat men with erectile dysfunction (sexual impotence). It belongs to a group of medicines called phosphodiesterase 5 (PDE5) inhibitors. These medicines prevent an enzyme called phosphodiesterase type-5 from working too quickly. The penis is one of the areas where this enzyme works. • LEVITRA is taken as needed: For most patients, the starting dose is 10 mg, up to once daily. Increase to 20 mg or decrease to 5 mg based on efficacy/tolerability. () • A starting dose of 5 mg LEVITRA should be considered in patients ≥65 years of age. () • LEVITRA is taken orally, approximately 60 minutes before sexual activity. Valid at all major chains including Walgreens, CVS Pharmacy, Target, WalMart Pharmacy, Duane Reade and 65, pharmacies nationwide. No manufacturer promotions could be .