Is tamsulosin hydrochloride sustained-release tablets an antibiotic?

Tamsulosin hydrochloride sustained-release tablets is a drug to relieve dysuria caused by benign prostatic hyperplasia (BPH), not an antibiotic. In the adverse reactions of the drug, orthostatic hypotension may occur in the cardiovascular system, dizziness and gait staggering may occur in the nervous system. It can also cause dizziness, headache, weakness, drowsiness and insomnia.

Combined with your situation, it may be an adverse drug reaction. It is recommended to stop taking medicine and consult a doctor or pharmacist.