Folic Acid

Also indexed as: Folate, Methylfolate

Drug Interactions

Certain medicines interact with folic acid: Some interactions may increase the need for folic acid (Beneficial), other interactions may be negative (Avoid) and indicate folic acid should not be taken without first speaking with your physician or pharmacist, others may require further explanation (Check). Refer to the individual drug article for specific details about an interaction.

Note: the following list only includes the generic or class name of a medicine—to find a specific brand name, use the Safetychecker index.

Aluminum Hydroxide Beneficial

Anticonvulsants Beneficial Avoid

Aspirin Beneficial

Azathioprine Beneficial

Bile Acid Sequestrants Beneficial

Chemotherapy Avoid

Colestipol Beneficial

Cycloserine Beneficial

Diuretics Beneficial

Erythromycin Check

Famotidine Check

Fenofibrate Beneficial

Fluoxetine Beneficial

Gabapentin Beneficial Avoid

Indomethacin Beneficial

Isoniazid Beneficial

Lansoprazole Beneficial

Lithium Beneficial

Loop Diuretics Beneficial

Magnesium Hydroxide Beneficial

Medroxyprogesterone Check

Metformin Beneficial

Methotrexate Beneficial Avoid

Neomycin Beneficial

Nitrous Oxide Beneficial

Nizatidine Beneficial Check

Omeprazole Beneficial

Oral Contraceptives Beneficial

Phenobarbital Beneficial Avoid

Piroxicam Check

Ranitidine Beneficial

Salsalate Beneficial

Sodium Bicarbonate Beneficial

Sulfamethoxazole Beneficial

Sulfasalazine Beneficial

Sulindac Check

Tetracycline Beneficial

Thiazide Diuretics Beneficial

Triamterene Beneficial

Trimethoprim Beneficial

Trimethoprim/Sulfamethoxazole Beneficial

Valproic Acid Beneficial Avoid