Generic Name(s): chlorpheniramine/phenylephrine/pyrilamine
Drug Class: Upper respiratory combinations
Treats: Symptoms of Allergies, Congestion





Phenatan-S is a combination medicine of antihistamines and decongestants. This medication works by relieving the symptoms of allergies and congestion. It also promotes sinus draining as well as improving breathing. However, Phenatan-S may also be used for other conditions as determined by the doctor. Consult the doctor for more information.
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Phenatan-S Uses
Phenatan-S is a combination medicine of antihistamines and decongestants which is mainly used to relieve the symptoms of allergies and congestion. The antihistamines work by relieving the symptoms of allergies, for example, rash, hives, runny nose, watery eyes, itching and sneezing. The decongestants work by relieving congestion and promoting sinus draining. It also improves breathing. However, Phenatan-S may also be used for other conditions as determined by the doctor. Do not use this medication if you are allergic to it or any ingredient in it. Consult the doctor if this applies to you. Follow the instructions exactly as indicated on the label or as prescribed by the doctor. Below you will find some of the uses of Phenatan-S.
- Symptoms of Allergies
- Congestion
- Improves breathing
Phenatan-S Dosage
Phenatan-S dosage is used for treating the symptoms of allergies and congestion among others. Dosage varies with the age of the patient and it is also different for different patients. The dose depends on the strength of the medicine. You avoid overuse or unnecessary use since the medicine can become ineffective. In case you miss a dose, take as soon as remembered. Do not take if it is almost time for the next dose, instead, skip the missed dose and resume your usual dosing schedule. Do not start, stop or change the dosage unless the doctor tells you so. Below you will find a typical Phenatan-S dosage.
- Talk to your doctor about your Phenatan-S dosage.
Phenatan-S Side Effects
Like any other drug, Phenatan-S may cause side effects. You should contact your doctor if you suffer any severe side effects. These effects should subside as your body adjusts to the medication. If they persist or become bothersome, inform your doctor. In case any of these side effects occurs, consult the doctor for medication.
Below you will find a list of Phenatan-S side effects. Note that not all possible side effects are listed here. Side effects include:
- drowsiness
- dizziness
- headache
- loss of appetite
- stomach upset
- blurred vision
- restlessness
- irritability
- dry mouth and nose
- breathing difficulties
- heart pounding
- irregular heartbeat
- chest pain
- ringing in the ears
- difficulty urinating
Phenatan-S Interactions
Phenatan-S has some known drug interactions. You should consult your doctor or medical professional before adding any new medication, including over the counter drugs. Inform your doctor what medications you take, especially medication for high blood pressure, seizures, or depression, sleeping pills, sedatives, tranquilizers and muscle relaxants. Avoid combining medicines anyhow to avoid complications. Below is a list of drugs that have been known to interact with Phenatan-S. Note that this list does not include all possible drug interactions.
Some of the drugs that interact with Phenatan-S:
- furazolidone
- phenelzine
- selegiline
- tranylcypromine