Drugs A - Z
Thiamine Mononitrate (Vitamin B1) Oral tablet
Generic Name: thiamine
Brand Names: Thiamine Hydrochloride
What is this medicine?THIAMINE (THAHY uh min) is a vitamin B1. It is added to a healthy diet to prevent or to treat low vitamin B1 levels.
This vitamin may be used for other purposes; ask your health care provider or pharmacist if you have questions.
What should I tell my health care provider before I take this medicine?They need to know if you have any of the following conditions:
- Wernicke's disease
- an unusual or allergic reaction to B vitamins, other medicines, foods, dyes, or preservatives
- pregnant or trying to get pregnant
How should I use this medicine?Take this medicine by mouth with a glass of water. Follow the directions on the package or prescription label. For best results take this medicine with food. Take your medicine at regular intervals. Do not take your medicine more often than directed.
Talk to your pediatrician regarding the use of this medicine in children. While this medicine may be prescribed for selected conditions, precautions do apply.
What if I miss a dose?If you miss a dose, take it as soon as you can. If it is almost time for your next dose, take only that dose. Do not take double or extra doses.
What may interact with this medicine?Interactions are not expected.
What should I watch for while using this medicine?Follow a healthy diet. Taking a vitamin supplement does not replace the need for a balanced diet. Some foods that have this vitamin naturally are yeast, beans, peas, nuts, pork, and beef. Limit alcohol, smoking and stress.
Too much of this vitamin can be unsafe. Talk to your doctor or health care provider about how much is right for you.
What side effects may I notice from receiving this medicine?Side effects that you should report to your doctor or health care professional as soon as possible:
- allergic reactions like skin rash, itching or hives, swelling of the face, lips, or tongue
- chest tightness
- fast, irregular heartbeat
- irritable, restless
- nausea, vomiting
- unusually bleeding or bruising
Side effects that usually do not require medical attention (report to your doctor or health care professional if they continue or are bothersome):
Where should I keep my medicine?Keep out of the reach of children.
Store at room temperature between 15 and 30 degrees C (59 and 85 degrees F). Protect from heat and light. Throw away any unused medicine after the expiration date.
Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use this medication only for the indication prescribed.