I, luckily, came across Sulfamethoxazole and trimethoprim DS 800 mg / 160 mg during my miserable search to find an old RX to aid in this intolerable sinusitis. Am I supposed to take one every six hrs or can I double up so I can be useful sooner and free of this misery?
Hi.Thanks for writing HCM. I were to advise Suflamethoxazole/trimethoprim tab for 1 week for sinusitis.Each tablet have to be taken twice daily(one in the morning and one at night).Advise you to take plenty of oral fluids.Hope this answers your query.
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