R-Tanna PD is part of the Antihistamine / Sudafed Combinations class and treats Nasal Congestion, Allergic Rhinitis, Sinus Infection, and other conditions. Antihistamine / Sudafed combinations are used to treat allergic rhinitis, nasal congestion, cold symptoms, and sinus infection. They work by blocking the action of histamine and by reducing inflammation in the nose. R-Tanna PD is only available as a brand name drug. Compare antihistamine / sudafed combinations.

R-Tanna PD Side Effects

Interactions with Medications

Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Although serious side effects occur rarely when this medicine is taken as recommended, they may be more likely to occur if: too much medicine is taken, it is taken in large doses, or it is taken for a long period of time.

Get emergency help immediately if any of the following symptoms of overdose occur:

Clumsiness or unsteadiness

convulsions (seizures)

drowsiness (severe)

dryness of mouth, nose, or throat (severe)

hallucinations (seeing, hearing, or feeling things that are not there

headache (continuing)

shortness of breath or troubled breathing

slow, fast, or irregular heartbeat

trouble in sleeping

For promethazine only

Muscle spasms (especially of neck and back)


shuffling walk

tic-like (jerky) movements of head and face

trembling and shaking of hands

Check with your doctor as soon as possible if any of the following side effects occur:


Back, leg or stomach pain

black, sticky stools

bleeding gums

blood, cloudy or dark urine, or sudden decrease in amount of urine

blood pressure increased

blurred vision

chest pain




faintness, or lightheadedness when getting up from a lying or sitting position

fever or chills

light-colored stools

mood or mental changes


sore throat and fever

skin rash or hives


swollen mouth, throat, face, fingers, feet, glands or lower legs

sweating suddenly

tightness in chest

troubled breathing

twitching, twisting, or uncontrolled repetitive movements of face

unusual bleeding or bruising

unusual tiredness or weakness

vomiting of blood

weight gain suddenly

yellow or pale eyes or skin

Some side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:

More common

rare with loratadine-containing combination


thickening of the bronchial secretions

Less common

more common with high doses

Blurred vision


difficult or painful urination


dryness of mouth, nose, or throat


loss of appetite


pounding heartbeat

ringing or buzzing in ears

skin rash

stomach upset or pain (more common with pyrilamine)

unusual excitement, nervousness, restlessness, or irritability

unusual sleepiness, weakness or drowsiness, extreme tiredness

Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.

Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.

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