Vitamin B1

Also indexed as: B1 Vitamin, Thiamin
Vitamin B1: Main Image

Interactions with Supplements, Foods, & Other Compounds

Vitamin B1 works hand in hand with vitamin B2 and vitamin B3. Therefore, nutritionists usually suggest that vitamin B1 be taken as part of a B-complex vitamin or other multivitamin supplement.

Interactions with Medicines

Certain medicines interact with this supplement.

May Be Beneficial:Some medicines may increase the need for this supplement.
Avoid:Some medicines interact with this supplement, so they should not be taken together.
Check: Some interactions between this supplement and certain medicines require more explanation. Click the link to see details.

Note: The following list only includes the generic or class name of a medicine. To find a specific brand name, use the Medicines Index.

May Be Beneficial:Amitriptyline
May Be Beneficial:Amoxapine
May Be Beneficial:Bumetanide
May Be Beneficial:Clomipramine
May Be Beneficial:Desipramine
May Be Beneficial:Desogestrel-Ethinyl Estradiol
May Be Beneficial:Doxepin
May Be Beneficial:Ethinylestradiol and Levonorgestrel
May Be Beneficial:Ethinylestradiol and Norethisterone
May Be Beneficial:Ethinylestradiol and Norgestimate
May Be Beneficial:Ethinylestradiol and Norgestrel
May Be Beneficial:Furosemide
May Be Beneficial:Imipramine
May Be Beneficial:Levonorgestrel
May Be Beneficial:Levonorgestrel-Ethinylestradiol
May Be Beneficial:Mestranol with Norethisterone
May Be Beneficial:Norgestimate-Ethinylestradiol
May Be Beneficial:Nortriptyline
May Be Beneficial:Protriptyline
May Be Beneficial:Stavudine
May Be Beneficial:Torsemide
May Be Beneficial:Trimipramine

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The information presented in Aisle7 is for informational purposes only. It is based on scientific studies (human, animal, or in vitro), clinical experience, or traditional usage as cited in each article. The results reported may not necessarily occur in all individuals. For many of the conditions discussed, treatment with prescription or over the counter medication is also available. Consult your doctor, practitioner, and/or pharmacist for any health problem and before using any supplements or before making any changes in prescribed medications. Information expires June 2011.