Comparing Diltiazem vs Phenylephrine
Diltiazem | Phenylephrine |
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Diltiazem | Phenylephrine |
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Prescription only
Diltiazem may be used for the treatment of high blood pressure or chronic stable angina. Rhinitis, headache, and constipation are commonly reported side effects. Prescribed for Atrial Fibrillation... View more |
Prescription and OTC
Phenylephrine relieves congestion of the nasal passages and is found in many cold and flu remedies. There is some controversy over whether it works at the dosages usually found in over-the-counter... View more |
Related suggestions Supraventricular Tachycardia
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More about Diltiazem | More about Phenylephrine | ||||||||||||||||
Ratings & Reviews | |||||||||||||||||
Diltiazem has an average rating of 6.0 out of 10 from a total of 187 ratings on Drugs.com. 45% of reviewers reported a positive effect, while 32% reported a negative effect. |
Phenylephrine has an average rating of 6.3 out of 10 from a total of 21 ratings on Drugs.com. 63% of reviewers reported a positive effect, while 37% reported a negative effect. |
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Drug Class | |||||||||||||||||
Side Effects | |||||||||||||||||
See also: diltiazem side effects in more detail. |
See also: phenylephrine side effects in more detail. |
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Generic Availability | |||||||||||||||||
Lower cost generic |
Lower cost generic |
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Pricing and Coupons * Prices are without insurance | |||||||||||||||||
View all diltiazem prices |
View all phenylephrine prices |
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Dosage Forms Available | |||||||||||||||||
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Brand Names | |||||||||||||||||
Cardizem, Cardizem CD, Cardizem LA, Cartia XT, Dilacor XR, Dilt-XR, Diltia XT, Diltiazem Hydrochloride CD, Diltiazem Hydrochloride SR, Diltiazem Hydrochloride XR, Diltzac, Matzim LA, Taztia XT, Tiadylt ER, Tiazac View more | AH-Chew D, Biorphen, Congest Aid II, Contac-D, Despec-SF, Dimetapp Toddler's Drops Decongestant, Gilchew IR, Little Colds Decongestant, Nasal Decongestant PE, Nasop, Nasop12, Neo-Synephrine, Ricobid-D, Sudafed PE Children's Nasal Decongestant, Sudafed PE Congestion, Sudogest PE, Suphedrine PE, Vazculep View more | ||||||||||||||||
Half Life The half-life of a drug is the time taken for the plasma concentration of a drug to reduce to half its original value. | |||||||||||||||||
6 hours |
N/A |
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CSA Schedule ** View glossary of terms | |||||||||||||||||
Not a controlled drug
Is not subject to the Controlled Substances Act. |
Not a controlled drug
Is not subject to the Controlled Substances Act. |
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Pregnancy Category | |||||||||||||||||
Category C
Risk cannot be ruled out
See the full pregnancy warnings document. |
Category C
Risk cannot be ruled out
See the full pregnancy warnings document. |
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Drug Interactions | |||||||||||||||||
A total of 697 drugs are known to interact with diltiazem:
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A total of 198 drugs are known to interact with phenylephrine:
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Alcohol/Food/Lifestyle Interactions | |||||||||||||||||
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No known alcohol/food interactions. This does not necessarily mean no interactions exist. Always consult your healthcare provider. |
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Disease Interactions | |||||||||||||||||
First Approval Date | |||||||||||||||||
November 05, 1982 |
December 20, 2012 |
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WADA Class View World Anti-Doping Agency classifications. | |||||||||||||||||
N/A |
N/A |
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More Information | |||||||||||||||||
Patient resources | |||||||||||||||||
Professional Resources | |||||||||||||||||
Related Treatment Guide | |||||||||||||||||
** The Controlled Substances Act (CSA) schedule information displayed applies to substances regulated under federal law. There may be variations in CSA schedules between individual states.
Further information
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.