L-tryptophan is used in addition to antidepressants to treat bipolar affective disorder. It works by affecting the levels of certain chemicals in the brain called neurotransmitters.
Available form
Tablet, Capsule
Dosage
Manufacturer
Bausch Health, Pharmascience, Pharmel
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The usual recommended adult dose of L-tryptophan is 8 g to 12 g daily taken in 3 to 4 equally divided doses with meals or snacks. For best results, take L-tryptophan with a low-protein, carbohydrate-rich snack or meal.
Many things can affect the dose of medication that a person needs, such as body weight, other medical conditions, and other medications. If your doctor has recommended a dose different from the ones listed here, do not change the way that you are taking the medication without consulting your doctor.
It is important to take this medication exactly as prescribed by your doctor. If you miss a dose, take it as soon as possible and continue with your regular schedule. If it is almost time for your next dose, skip the missed dose and continue with your regular dosing schedule. Do not take a double dose to make up for a missed one. If you are not sure what to do after missing a dose, contact your doctor or pharmacist for advice.
Store Tryptan (Tryptophan) at room temperature, protect it from light and moisture, and keep it out of the reach of children.
Do not dispose of medications in wastewater (e.g. down the sink or in the toilet) or in household garbage. Ask your pharmacist how to dispose of medications that are no longer needed or have expired.
Many medications can cause side effects. A side effect is an unwanted response to a medication when it is taken in normal doses. Side effects can be mild or severe, temporary or permanent.
The side effects listed below are not experienced by everyone who takes Tryptan (Tryptophan). If you are concerned about side effects, discuss the risks and benefits of Tryptan (Tryptophan) with your doctor.
The following side effects have been reported by at least 1% of people taking Tryptan (Tryptophan). Many of these side effects can be managed, and some may go away on their own over time.
Contact your doctor if you experience these side effects and they are severe or bothersome. Your pharmacist may be able to advise you on managing side effects.
Although most of the side effects listed below don't happen very often, they could lead to serious problems if you do not seek medical attention.
Seek immediate medical attention if any of the following symptoms of overdose occur:
Some people may experience side effects other than those listed. Check with your doctor if you notice any symptom that worries you while you are taking Tryptan (Tryptophan).
Capsule
Each opaque white capsule, size 00, imprinted with "ICN T17", contains 500 mg of L-tryptophan. Nonmedicinal ingredients: magnesium stearate and talc.
Tablet
250 mg
Each white, oval, film-coated tablet, embossed "TRYPTAN" on one side and "250 mg" on the other side, contains 250 mg of L-tryptophan. Nonmedicinal ingredients: calcium phosphate, croscarmellose sodium, film coating base solution (acetylated monoglyceride, hydroxypropyl methylcellulose, povidone, and titanium dioxide), magnesium stearate, methylcellulose, opaspray white, and wax solution.
500 mg
Each white, oval, biconvex, film-coated tablet, embossed "TRYPTAN" on one side and "500 mg" on the other side, contains 500 mg of L-tryptophan. Nonmedicinal ingredients: calcium phosphate, croscarmellose sodium, film coating base solution (acetylated monoglyceride, hydroxypropyl methylcellulose, povidone, and titanium dioxide), magnesium stearate, methylcellulose, opaspray white, and wax solution.
750 mg
Each white, oval, biconvex, film-coated tablet, embossed "TRYPTAN" on one side and "750 mg" on the other side, contains 750 mg of L-tryptophan. Nonmedicinal ingredients: calcium phosphate, croscarmellose sodium, film coating base solution (acetylated monoglyceride, hydroxypropyl methylcellulose, povidone, and titanium dioxide), magnesium stearate, methylcellulose, opaspray white, and wax solution.
1 g
Each white, oval, film-coated tablet, embossed "TRYPTAN 1 g" on one side, contains 1 g of L-tryptophan. Nonmedicinal ingredients: calcium phosphate, croscarmellose sodium, film coating base solution (acetylated monoglyceride, hydroxypropyl methylcellulose, povidone, and titanium dioxide), magnesium stearate, methylcellulose, opaspray white, and wax solution.
Do not take Tryptan (Tryptophan) if you are allergic to L-tryptophan or any ingredients of the medication.
There may be an interaction between L-tryptophan and any of the following:
If you are taking any of these medications, speak with your doctor or pharmacist. Depending on your specific circumstances, your doctor may want you to:
An interaction between two medications does not always mean that you must stop taking one of them. Speak to your doctor about how any drug interactions are being managed or should be managed.
Medications other than those listed above may interact with Tryptan (Tryptophan). Tell your doctor or prescriber about all prescription, over-the-counter (non-prescription), and herbal medications you are taking. Also tell them about any supplements you take. Since caffeine, alcohol, the Nicotine from cigarettes, or street drugs can affect the action of many medications, you should let your prescriber know if you use them.
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 Tryptan (Tryptophan).
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: Tryptan (Tryptophan) can cause drowsiness, affecting your ability to drive or operate machinery. Avoid these and other hazardous tasks until you know how Tryptan (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 Tryptan (Tryptophan) may affect your medical condition, how your medical condition may affect the dosing and effectiveness of Tryptan (Tryptophan), 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: Tryptan (Tryptophan) should not be used during pregnancy unless the benefits outweigh the risks. If you become pregnant while taking Tryptan (Tryptophan), 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 Tryptan (Tryptophan), it may affect your baby. Talk to your doctor about whether you should continue breast-feeding.
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*Actual pricing may differ. Medication is only available by prescription. The cost may be subsidised by your provincial or private health plan.
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