Does the dosage of Cenforce 100 Mg affect its duration of effectiveness? Home › Forums › Diabetes & Complications › Does the dosage of Cenforce 100 Mg affect its duration of effectiveness? This topic has 0 replies, 1 voice, and was last updated 2 years, 2 months ago by Ronymeran. You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In