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Methylephedrine, sold under the brand name Metheph among others, is a sympathomimetic medication described as an antiasthmatic agent and used to treat coughing and nasal congestion. [ 3 ] [ 4 ] [ 1 ] It is reported to be used in various over-the-counter cough and cold preparations throughout the world, including Japan .
Levmetamfetamine is used to treat nasal congestion related to the common cold and allergic rhinitis. It is available in the form of an inhaler containing 50 mg total per inhaler and delivering between 0.04 and 0.15 mg of the drug per inhalation. [2]
Phenylpropanolamine was previously available in the United States over-the-counter and in certain combination drug forms by prescription. [24] [25] One such example of the latter was a combination of phenylpropanolamine and chlorpheniramine, which dually contained decongestant and antihistamine effects, marketed by Tutag as 'Vernate'.
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Vaccine combinations (few exceptions), antibiotics, low-dose steroids (less than 20 mg per day), minor infections with low fever (below 38.5º Celsius), diarrhea, malnutrition, kidney or liver disease, heart or lung disease, non-progressive encephalopathy, well controlled epilepsy or advanced age, are not contraindications to vaccination.
Propylhexedrine works mainly as an adrenergic agonist, when used at therapeutic doses in an inhaler dosage form. [21] This restricts the blood vessels in the nose and reduces swelling; thereby, it relieves nasal congestion. [22] At higher doses, propylhexedrine affects the central nervous system as a norepinephrine–dopamine releasing agent ...
In the Philippines, its Food and Drug Administration approved Lianhua Qingwen on 7 August 2020 as a traditional herbal product that helps remove "heat-toxin invasion of the lungs, including symptoms such as fever, aversion to cold, muscle soreness, stuffy and runny nose". It is not registered as a COVID-19 medication, and a doctor's ...
Approved indication for dihydrocodeine is the management of moderate to moderately severe pain as well as coughing and shortness of breath. As is the case with other drugs in this group, the antitussive dose tends to be less than the analgesic dose, and dihydrocodeine is a powerful cough suppressant like all other members of the immediate codeine family (see below) and their cousins ...