Before you begin using a medication, be sure to inform your doctor of any medical conditions or allergies you may have, any medications you are taking, whether you are pregnant or breast-feeding, and any other significant facts about your health. These factors may affect how you should use this medication.
Diabetes: If you have diabetes, your doctor should closely monitor your condition while you are taking L-tryptophan, as it may affect blood sugar control.
Drowsiness: This medication can cause drowsiness, affecting your ability to drive or operate machinery. Avoid these and other hazardous tasks until you know how tryptophan affects you.
Other medical conditions: If you have low stomach acid, other stomach or intestine problems, or a history of cataracts, discuss with your doctor how this medication may affect your medical condition, how your medical condition may affect the dosing
and effectiveness of this medication, and whether any special monitoring is needed.
Vitamin B6 supplements: Your doctor may recommend that you take vitamin B6 supplements to reduce your risk of bladder cancer.
Pregnancy: This medication should not be used during pregnancy unless the benefits outweigh the risks. If you become pregnant while taking this medication, contact your doctor immediately.
Breast-feeding: It is not known if L-tryptophan passes into breast milk. If you are a breast-feeding mother and are taking this medication, it may affect your baby. Talk to your doctor about whether you should continue breast-feeding.