Is one sachet of Fosfomycin Trometamol powder taken per day?

Mar 17, 2025 Source: Cainiu Health
Disease description:

I have urethritis, and my doctor prescribed me Fosfomycin Trometamol Powder. I forgot to ask about the dosage—should I take one sachet per day? I'm afraid that taking the wrong dose might affect the drug's efficacy or cause side effects.

Doctor's answer (1)
Dr. Cao Zhiqiang

The dosage and frequency of administration of Fosfomycin Trometamol Powder should strictly follow medical instructions, and it is not necessarily one sachet per day.

Fosfomycin Trometamol Powder is used to treat various infections caused by Gram-positive and Gram-negative bacteria, such as urinary tract infections, respiratory tract infections, etc. In terms of its method and dosage, adults may require a single daily dose of a certain amount. However, since different brands or specifications of Fosfomycin Trometamol Powder may contain varying amounts of the active ingredient per sachet, it is inappropriate to generalize the dosage simply as one sachet per day.

Patients should use the medication strictly according to the doctor's instructions and should not adjust the dosage or frequency on their own, to avoid affecting treatment efficacy or causing adverse reactions. Additionally, during medication, attention should be paid to potential adverse effects and contraindications, such as gastrointestinal reactions, rash, and liver function impairment. If any adverse symptoms occur, patients should promptly inform their doctor for timely adjustment of the treatment plan. Moreover, appropriate use of antibiotics helps prevent the development of drug resistance; therefore, antibiotics should never be misused or overused.