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Dosage Package Price per pill, $ Price, $ Buy
25mgX30 30 0.52 15.60
25mgX60 60 0.41 24.60
25mgX90 90 0.37 33.30
25mgX120 120 0.34 40.80
25mgX180 180 0.30 54.00
25mgX360 360 0.27 97.20

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Pharmaceutical and clinical studies have shown that Phenergan is one of the most potent histaminic H1 antagonists that are available on the market; the popularity of Phenergan is due to the additional sedative / calming and anti-emetic properties of Phenergan. The average duration of the effects / action of Phenergan ranges between 4 and 6 hours.
Most clinical prescribers recommend the use of Phenergan in the symptomatic therapy of skin and / or upper respiratory tract allergic conditions that may be due either to foreign proteins or to any medicinal agent. In other cases, Phenergan is prescribed due to its sedative / hypnotic effects, while some physicians often recommend it for its anti-secretory, anti-emetic effects. For further details concerning Phenergan indications, seek your physician's expertise.


A prolonged therapy course with Phenergan may lead to the thickening or to the drying of the patient's lung secretions; in some cases, a therapy course with Phenergan can impair expectoration. For these reasons, we recommend all patients who suffer from bronchitis, asthma, bronchiectasis or any other similar clinical conditions to employ extra caution during their therapy course with Phenergan.
Promethazine (one of the main components of Phenergan) is known to sometimes mask the warning clinical manifestations of ototoxicity (a condition caused by the improper use of ototoxic medicines, such as salicylates or by an unwanted over-dosage with such a medical product). All individuals who are using Phenergan should know that their therapy course with Phenergan may delay the accurate diagnosis of certain clinical conditions (especially intestinal raised intracranial pressure).

Intake Guidelines

Patients who are being treated with Phenergan may have to take into consideration certain precautions during their therapy option with Phenergan. Seek further advice regarding this matter from your prescriber or from your personal pharmacist. A nurse can give you reliable directions regarding your current / future dosing routine with Phenergan.


The average adult individual can be indicated an initial dose of 25 mg of Phenergan which should be taken in at night. In time, his or her prescriber may choose to increase their daily dose of Phenergan up to 2-3 doses of 25 mg of Phenergan. Adult patients who are using Phenergan to deal with travel sickness should use 25 mg of Phenergan the night before traveling.


The presence of such a clinical condition is known to lead to the development of variable clinical manifestations; the severity of the patient's symptoms depends on the extra amount of Phenergan that has been employed by the patient. Furthermore, the particular clinical manifestations that occur in such a condition depend on the age and sex of the patient. For example, while children present athetosis, excitation, uncoordination, ataxia, and hallucinations, most adult individuals who overdose with Phenergan accuse severe drowsiness, which can develop into coma. Both adult and children patients may present convulsions.
If a patient experiences over-dosage with Phenergan, it is imperative that he or she is granted immediate medical attention. The main therapy option against this clinical condition is known to aim to induce immediate vomiting; gastric lavage may be employed. Most patients are then granted supportive treatment, provided that they remain under close monitoring. It is important for the physicians to closely supervise the patient's circulatory and respiratory status.

Missed Dose

As with other medications, the constant neglecting of one's indicated doses of Phenergan may delay the visible results of his or her therapy with Phenergan. Missed doses of Phenergan may prolong the span of your treatment with this medical remedy. All patients must be well aware of the fact that the use of extra doses of Phenergan is not an adequate clinical solution for such a condition. You should ask your prescriber for advice concerning this medical matter.

Side Effects

A small number of patients who were being treated with Phenergan developed certain side effects, including the following symptoms: headaches, dizziness, restlessness, drowsiness, nightmares, tiredness, and even disorientation. Some individuals who were administered this antihistaminic remedy developed a set of anti-cholinergic adverse clinical manifestations, especially dry mouth, blurred vision, and urinary retention. However, such symptoms only occurred in rare clinical cases.
Newborn babies and premature infants who are exposed to the ingredients of Phenergan are known to be more susceptible to the developing of the unwanted anti-cholinergic effects of Phenergan than the average adult individual. Furthermore, other patients developed some of the following clinical manifestations: marked irregular respiration, anorexia, gastric irritation, nausea, vomiting, loss of appetite, constipation, diarrhea, bradycardia, hypotension, palpitations, extra-pyramidal effects, arrhythmias, muscle spasms, euphoria, nervousness, and so on. In very rare cases, symptoms such as jaundice, hemolytic anemia or any other blood dyscrasias conditions may be reported. Other rare clinical manifestations include symptoms of an allergic reaction to Phenergan.


Pharmaceutical studies have shown that the use of Phenergan will probably increase the actions of most tricyclic antidepressants, anti-cholinergic medications, sedative or hypnotic remedies. A harmful interaction may occur between Phenergan and the consumption of alcoholic beverages. Furthermore, the use of Phenergan may interfere with the results of immunologic pregnancy tests that require a urine sample (false-negative and / or false-positive results have been reported by females who were using Phenergan on a regular basis).
The regular use of this remedy inhibits the patient's normal cutaneous histamine response; in other words, patients should discontinue using Phenergan at least 3 days before they undergo any skin clinical evaluations which employ allergen extracts in order to avoid the production of false-negative test results.

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