I am getting a bladder infection, i am sure. My doctor is unavailable until monday. The doctor on call prescribed a sinus infection antibiotic, which my pharmacy refused to fill for bladder problems. This will not wait until monday, and i have an rx for clindamycin hcl 150 mg. Can i take this until monday morning when my doctor returns, at which time, she can switch me to whatever she feels is right? I have a full rx for the clindamycin, which was prescribed for a severe tooth abcess. Instructions were 2 capsules every six hours until gone. It is an extra rx. I was given two. The only thing i need to know if i can take these short term until monday is dosage. Would i take the same as was prescribed for my tooth? I do feel safe doing this, but since i am not an md, would appreciate a yay, or nay, if possible. Thank you