


Ask a doctor about a prescription for IMIGRAN 6 mg injectable solution
Package Leaflet: Information for the User
Imigran 6 mg Solution for Injection
Sumatriptan (as sumatriptan succinate)
Read all of this leaflet carefully before you start taking this medicine because it contains important information for you.
Contents of the pack
Imigran contains the active substance sumatriptan which belongs to a group of medicines called triptans (also known as 5-HT1 receptor agonists).
Imigran is used to relieve the headache and other symptoms of a migraine attack or a cluster headache attack.
It is thought that the widening of blood vessels in the head is a cause of the pain of migraine headaches. This medicine constricts the blood vessels in the head and relieves the symptoms of migraine.
Do not use Imigran
If any of these apply to you
Tell your doctor and do not use Imigran.
Warnings and precautions
Talk to your doctor or pharmacist before you start using Imigran.
Before taking Imigran, your doctor needs to know if you have any extra risk factors for heart disease:
On very rare occasions, people have developed serious heart problems after using Imigran, even though they had no signs of heart disease before. If any of the above applies to you, it may mean that you have a greater risk of developing heart disease, so
Tell your doctor to check your heart functionbefore Imigran is prescribed for you.
If you have a history of fits (seizures)
Or if you have other conditions that may make you more likely to have fits – for example, a head injury or alcoholism.
Tell your doctor to monitor you more closely.
If you have high blood pressure
Imigran may not be suitable for you:
Tell your doctor or pharmacist before using Imigran.
If you have kidney or liver disease
Tell your doctor or pharmacist before using Imigran.
If you are allergic to antibiotics called sulphonamides
If so, you may also be allergic to Imigran. If you know you are allergic to antibiotics but are not sure if it is a sulphonamide:
Tell your doctor or pharmacist before using Imigran.
If you are taking antidepressants called SSRIs(Selective Serotonin Reuptake Inhibitors) or SNRIs(Serotonin and Noradrenaline Reuptake Inhibitors)
Tell your doctor or pharmacist before using Imigran.See also below, Other medicines and Imigran.
If you use Imigran frequently
Using Imigran too often may make your headaches worse.
Tell your doctor if this happens to you.Your doctor may recommend that you stop using this medicine.
If you feel pain or pressure in your chest after using Imigran
These effects may get worse but usually pass quickly. If they do not pass quickly or get worse:
Get medical help immediately.See section 4 of this leaflet for more information on these possible side effects.
Other medicines and Imigran
Tell your doctor or pharmacist if you are taking, have recently taken or might take any other medicines. This includes any herbal remedies or medicines that you have bought without a prescription.
Some medicines must not be taken with Imigran and others may cause side effects when taken with Imigran. Tell your doctor if you are taking other medicines, such as:
Fertility, pregnancy and breastfeeding
If you are pregnant or breastfeeding, think you may be pregnant or are planning to have a baby, ask your doctor for advicebefore taking this medicine. There is limited information on the safety of Imigran in pregnant women, although up to now there is no evidence that it increases the risk of birth defects. Your doctor will weigh up the benefits and risks of using Imigran during pregnancy.
Do not breastfeed for 12 hours after taking Imigran. If you express breast milk during this time, discard the milk and do not give it to your baby.
Driving and using machines
This medicine, like migraine, can cause drowsiness. If you experience these effects, do not drive or use machines because it can be dangerous.
Imigran contains sodium
This medicine contains less than 23 mg of sodium (1 mmol) per 0.5 ml; this is essentially “sodium-free”.
It can cause severe allergic reactions because it contains latex in the packaging.
Follow exactly the instructions of administration of this medicine given by your doctor. If you are not sure, talk to your doctor or pharmacist.
Only use Imigran after your migraine headache has started. Do not use Imigran to prevent a migraine attack.
Remember to use your medicine.
Your doctor will tell you how long to use Imigran. Do not stop using it before then.
Imigran should be used as soon as migraine symptoms appear or a cluster headache attack; however, it can be used at any time during an attack.
It is not recommended to administer to children, adolescents under 18 years or elderly patients.
The recommended dose in adults for migraine or cluster headache symptoms is a single injection (6 mg) subcutaneously, just under the skin. Your doctor will show you where to administer the injection, usually in the thigh or buttock. Do not inject directly into a vein. Some people start to feel better within 15 minutes of using Imigran.
If you do not feel better after taking a dose, do not use a second dose of sumatriptan for the same migraine or cluster headache attack. However, you can take your usual painkiller, as long as it does not contain ergotamine or dihydroergotamine.
If you feel better after the first dose but the symptoms come back, you can use a second dose of Imigran, at least one hour after the first dose.
Do not use more than 2 injections in 24 hours and leave at least one hour between each dose.
Needles and syringes can be hazardous and must be disposed of safely and hygienically.


The device consists of three parts: auto-injector, case and a cartridge that contains two syringes, as shown in the following figure:
The auto-injector can only be used when it is loaded with a syringe.
Contents of the case
To use the auto-injector

Remove the seal from one of the two syringes that contains the cartridge.



There is a safety button that prevents accidental injection until you are ready.


Be careful, you will see the needle.



If you use more Imigran than you should:
In case of overdose or accidental ingestion, talk to your doctor or pharmacist immediately or call the Toxicology Information Service, telephone: 91 562 04 20, indicating the medicine and the amount taken.
If you have any further questions on the use of this product, ask your doctor or pharmacist.
Like all medicines, Imigran can cause adverse effects, although not all people suffer from them. Some of these symptoms may be caused by the migraine itself.
Allergic Reactions: Seek Medical Attention Immediately
The following adverse effects have occurred in a very small number of people, and their exact frequency is unknown.
If you notice any of these symptoms shortly after using Imigran:
? Never use it again.Contact your doctor immediately.
Very Common Adverse Effects
(affect more than 1 in 10people)
Common Adverse Effects
(affect up to 1 in 10people)
If these effects continue or worsen(especially chest pain):
?Seek urgent medical attention. In a small number of people, these symptoms can be caused by heart attacks.
Other common adverse effects include:
Very Rare Adverse Effects
(affect up to 1 in 10,000people)
Some patients may experience any of the following adverse effects, but the frequency with which they occur is unknown
If you have had a blood test to check how your liver is working and have taken Imigran, inform your doctor, as it may affect the results.
Reporting Adverse Effects:
If you experience any type of adverse effect, consult your doctor or pharmacist, even if it is a possible adverse effect that does not appear in this prospectus. You can also report them directly through the Spanish Pharmacovigilance System for Human Use Medicines: www.notificaRAM.es. By reporting adverse effects, you can contribute to providing more information on the safety of this medicine.
Keep this medicine out of sight and reach of children.
Do not store above 30°C. Store in the original packaging to protect it from light.
Do not use this medicine after the expiration date that appears on the packaging after CAD. The expiration date is the last day of the month indicated.
Medicines should not be thrown away through wastewater or household waste. Deposit the packaging and medicines you no longer need at the pharmacy's SIGRE point. In case of doubt, ask your pharmacist how to dispose of the packaging and medicines you no longer need. This way, you will help protect the environment.
Composition of Imigran:
-The active ingredient is sumatriptan. Each pre-filled syringe contains 6 milligrams of sumatriptan (as sumatriptan succinate).
-The other components are sodium chloride and water for injectable preparations.
Appearance of the Product and Package Contents
Imigran is presented in the form of a pre-filled syringe with a solution containing 6 mg of sumatriptan. Each package contains a case or pouch with 2 pre-filled syringes and a self-injector device.
The needle protector of the pre-filled syringe contains dry natural latex rubber that can cause severe allergic reactions in people sensitive to latex.
Marketing Authorization Holder and Manufacturer
Marketing Authorization Holder:
GlaxoSmithKline S.A.
P.T.M. C/ Severo Ochoa, 2
28760 Tres Cantos (Madrid)
Tel: +34 900 202 700
Manufacturer:
GlaxoSmithKline Manufacturing S.p.A.Strada Provinciale Asolana, 90
43056 San Polo di Torrile
Parma
Italy
Date of the Last Revision of this Prospectus:September 2020.
Detailed and updated information on this medicine is available on the website of the Spanish Agency for Medicines and Health Products (AEMPS) http://www.aemps.gob.es/
The average price of IMIGRAN 6 mg injectable solution in October, 2025 is around 26.21 EUR. Prices may vary depending on the region, pharmacy, and whether a prescription is required. Always check with a local pharmacy or online source for the most accurate information.
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