Calmaben contains an active substance called diphenhydramine hydrochloride and is used to treat short-term insomnia (sleep and sleep problems).
Not all sleep disorders require the use of specific medications.
They are often a manifestation of physical or mental illness and can be controlled by treating the disease that caused the disorder.
Do not use Calmaben:
- If you are allergic to diphenhydramine hydrochloride or any of the other ingredients of this medicine.
- If you have an acute asthma attack;
- If you have glaucoma (high pressure in the eye);
- If you have pheochromocytoma (tumor of the adrenal gland);
- If you have peptic ulcer with pyloric obstruction (a blockage in the digestive tract between the duodenum and stomach);
- If you have an enlarged prostate with the formation of residual urine (the bladder does not empty completely);
- If you have seizures;
- If you were born with abnormalities, highlighted by electrocardiogram, of the electrical activity of the heart (prolonged QT interval);
- If you suffer from heart rhythm problems or have a slow heart rhythm;
- If you are taking medication for heart rhythm disorders;
- If you are deficient in potassium or magnesium;
- If you are pregnant or breast-feeding;
- If you are taking medicines to treat depression (known as MAO monoamine oxidase inhibitors);
- If you have consumed alcohol.
Talk to your doctor or pharmacist before using Calmaben:
- if you have obstructive pulmonary disease;
- if the exit of your stomach is narrowed (stenosis) or if the entrance to your stomach is not working properly;
- if liver function is affected.
Do not use alcohol during treatment with Calmaben.
This medicine may affect your reflexes (ability to react) and your ability to drive.
Pregnancy, lactation and fertilityIf you are pregnant or breast-feeding, think you may be pregnant or are planning to have a baby, ask your doctor or pharmacist for advice before taking this medicine.
Calmaben should not be taken by pregnant or lactating women.
It should not be taken by women who want to become pregnant.
This is an OTC medicine, so it can be taken without a doctor's recommendation.
Before using this medicine carefully read the package leaflet as it contains more detailed information.
Consult your doctor or pharmacist for any doubt.

Adults and children over 12 years of age:
The usual dose is 1 tablet a day, with a sufficient amount of non-alcoholic liquid (for example a glass of water), 30 minutes before bedtime.
Get enough sleep for 7-8 hours to reduce the risk of adverse effects on your ability to react and in particular your ability to participate in road traffic the next morning.
The total duration of treatment is determined by your doctor and should be as short as possible.
If sleep disturbances persist, treatment should be discontinued as directed by your doctor.
Do not use in children under 12 years of age!

diphenhydramine hydrochloride, Copovidone (Kollidon VA 64), Crospovidone (Kollidon CL), maltodextrin, microcrystalline cellulose, anhydrous colloidal silicon dioxide, magnesium stearate;
Drying layer - Acacia gum (gum arabic), sucrose (sugar), talc, methylcellulose, calcium carbonate, Povidone (Kollidon K30), titanium dioxide (E 171), 85% glycerol, anhydrous colloidal silicon dioxide, montanglycol wax.