<s>[INST] Hi, I have taken 2 new periscribed medicines: Atenolol (25 mg) @ 2:30 yesterday afternoon & Clindamycin (30 mg) , one at 2:30pm and one at 11:30PM. I have been up all night & have had 8 Stools last one simi_liquid. I also had some fever and sore troat and took 2 over the counter Benedryl plus a few sore troat luzeges. Q: The text says do not stop Atenolol abruptly.so what should I do now? I am somewhat dehydrated with my stomach very hot & the rest of me chilled! Thank You, Sonny @ YYYY@YYYY [/INST] Hello, I passed carefully through your question and would explain that diarrhea could be related to clindamycin adverse effects. For this reason, I would recommend taking re-hydrating solutions with electrolytes and plenty of fluids. Regarding Atenolol, this is a very low dose and as you started it just yesterday, it is ok to stop it abruptly. Nothing bad is going to happen. Hope I have answered your query. Let me know if I can assist you further. Regards, Dr. Ilir Sharka, Cardiologist </s>