What is the oppsite of viagra

"Zithromax is prescribed to treat a bacterial infection and it can?t be used for treatment of a viral infection, such as the common cold. Azithromycin may be used to treat bacterial infections. Zithromax is an unusual antibiotic in that it stays in the body for quite a long time as it has a prolonged half-life that allows for once a day dosing and also for short-term treatment courses for most infections."

Looking for the better costs in discount meds? weight dosage for zithromax...