Generic Name(s): Guaifenesin/dextromethorphan/phenylephrine
Drug Class: Upper respiratory combinations
Treats: Stuffy nose, chest congestion, cough
Genetuss is a cough syrup consisting of guaifenesin, dextromethorphan and phenylephrine (an antitussive, expectorant and decongestant) respectively. It works by shrinking nasal blood vessels, suppressing the cough center in the brain, thinning the mucus in the chest and makes dry or irritating coughs productive and less painful.
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Genetuss is used by patients with chest congestion, rhinorrhea, cough, and throat and bronchiolar irritation due to allergies, colds, and sometimes infections of the upper respiratory tract. Phenylephrine is a sympathomimetic that works by shrinking nasal blood vessels and helps to relieve discomfort caused by colds, allergies, and hay fever.
Dextromethorphan and guaifenesin (antitussive and expectorant) are indicated for irritating coughs and works by suppressing coughs center in the brain while guaifenesin acts by loosening mucus in the lungs and helping the sufferer cough it up. However, this combination is used to relieve symptoms but not to treat the underlying cold or infection. In summary, Genetuss is used to treat the following conditions:
- Cold symptoms
- Running nose
- Nose stuffiness
- Inflammation of the nose
Use Genetuss precisely as directed by the doctor. The Genetuss dosage may vary from one patient to the other depending on the condition being treated. The doctor may base the dosage depending on the patient's medical history, weight, age, height and the response to therapy. The amount of Genetuss depends on the individual drug strength. Below you will find a typical dosage of Genetuss.
Adult dosage for relief of cough and cold symptoms:
- Take 5-10 ml orally every 4 – 6 hours. Maximum dose: 6 doses/ day.
- For 6 to 12 years of age: 2.5-5 ml orally every 4 – 6 hours. Maximum dose: six doses/ day.
Dosage and use for children below six years should be determined by your doctor.
If Genetuss dose is missed, take it as soon as you remember. However, if it is about time for the next dose, skip the missed dose and go back to the normal schedule.
Genetuss Side Effects
All medications, including Genetuss, cause side effects, but some patients may not experience them. Also, the acuteness of the side effects may be different from one patient to the other. Contact your doctor if any of the following common side effects are persistent or don't go away while taking Genetuss.
- Stomach upset
- Trouble sleeping
Call your doctor immediately if you experience the following severe side effects while taking Genetuss:
- Trouble breathing
- Severe headache
- Clammy skin
- Irregular heartbeat
- Allergic reactions such as hives, itching, pruritus.
- Vision changes
These are not the only Genetuss side effects that may occur. Contact your doctor immediately if you experience unusual, severe or persistent side effects.
Some drugs may interact with Genetuss and interfere with the way it works. In most cases, this syrup should not be used concomitantly with other drugs and substances unless under a doctor's instructions. Below is a list of drugs and substances that may interact with Genetuss:
- Alpha blockers
- Tricyclic antidepressants
- MAO Inhibitors
- HIV medications
These are not all the possible drugs and substances that interact with Genetuss. Share a list of prescription, non-prescription drugs, vitamins and herbal supplements to your doctor so that he/she can advise you accordingly.