Robitussin Night Time Cough & Cold

1 What is Robitussin Night Time Cough & Cold?

Brand: Robitussin Night Time Cough & Cold

Generic: Diphenhydramine and Phenylephrine

Robitussin Night Time Cough & Cold, Uni- Tann D, Alahist LQ, Aldex- CT, D- Tann, DimeTapp Night Time Cold & Congestion, Diphenmax D, Dytan D, Triaminic Night Time Cold & Cough.

Robitussin Night Time Cough & Cold is an anti- allergy/ antihistamine and decongestant drug, used to treat symptoms of common cold and flu. This is a drug combination of diphenhydramine and phenylephrine.

Diphenhydramine is the anti- allergy/ antihistamine component of Uni- Tann D. It blocks the effect of histamine, a natural substance produced by the body during an allergic reaction, to relieve itching, runny nose, sneezing and watery eyes.

Phenylephrine is the decongestant component of Uni- Tann D. This constricts/ shrinks the dilated blood vessels in the nasal passages to relieve stuffy nose or nasal congestion.


Read your medication guide and follow your doctor’s prescription at all times.

  • Take Robitussin Night Time Cough & Cold orally/ by mouth before or after meals per doctor’s prescription.
  • Chew the chewable tablet preparation of this drug thoroughly before swallowing it.
  • Use a standard medicine cup/ spoon (not household spoon) to obtain the accurate amount for each dose if you are using the liquid preparation of this medication.
  • The dosage depends on your medical condition or treatment response. Do not adjust your dose without your doctor’s recommendation. Do not give this to children less than 2 years old.
  • Do not take in stimulants and other products that contain caffeine while taking Robitussin Night Time Cough & Cold to prevent serious side effects.
  • Avoid alcohol intake and activities that require mental alertness (i.e. driving, operating machinery) because this medication can cause dizziness.
  • Continue taking Robitussin Night Time Cough & Cold on a regular schedule (same time of the day). Do not stop taking this medication abruptly without consulting your doctor.

Inform your doctor immediately if your condition aggravates or does not improve.

Take your missed dose as soon as possible. However, make sure that the time interval between the missed and the next dose is not too close. Otherwise, stick with the regular schedule and leave out the missed dose. Do not double dose to cover up a missed dose. Record your missed dose and inform your doctor immediately if you missed several doses.


Robitussin Night Time Cough & Cold may interact with:

  • Antihypertensive medications or high blood pressure medicines (i.e. atenolol, metoprolol, propranolol)
  • Antidepressant medications (i.e. amitriptyline, imipramine) and
  • MAO inhibitor drugs (i.e. isocarboxazid, phenelzine, selegiline)

Some drugs may either lessen the beneficial effects or worsen the side effects of Robitussin Night Time Cough & Cold. Likewise, Robitussin Night Time Cough & Cold may make some drugs less efficient or intensify their side effects.

Make sure to inform your doctor about all other drugs you are currently taking or using (prescribed and non-prescribed medications including vitamins, minerals, and herbal products) to check for possible drug interaction with Robitussin Night Time Cough & Cold.

Never alter the doses of other medications while on Robitussin Night Time Cough & Cold neither stop nor start any medicine without the doctor’s recommendation.

Side Effects:

There are no side effects known aside from a possible allergic reaction in people who have previous or unknown hypersensitivity to the drug.

Watch out for signs of allergic reactions such as:

  • Rash
  • Itching
  • Swelling


Before taking Robitussin Night Time Cough & Cold, tell your health care provider if you have/are:

  • Any allergies to any substance, food or medication, particularly to Uni- Tann D, diphenhydramine, and phenylephrine
  • Medical history or a present condition such as:

        o Asthma

        o Heart disease

        o High blood pressure

        o Diabetes

        o Thyroid disorder

        o Glaucoma

        o Phenylketonuria (PKU)

        o Kidney disease

        o Prostate enlargement

        o Other problems in urinating and

  • Pregnant, planning to get pregnant or currently breastfeeding a baby (Robitussin Night Time Cough & Cold can harm the unborn child and it can pass through breast milk that may harm the nursing child. The risks and benefits of using this medication during pregnancy must be discussed well with your doctor.)
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