Skip to main content

Drug Interactions between midodrine and Ricobid-D

This report displays the potential drug interactions for the following 2 drugs:

Edit list (add/remove drugs)

Interactions between your drugs

Moderate

phenylephrine midodrine

Applies to: Ricobid-D (phenylephrine) and midodrine

MONITOR: The pressor effects of midodrine may be potentiated by the concomitant use of other agents that cause vasoconstriction, including sympathomimetics and ergot alkaloids. Midodrine is an alpha-adrenergic agonist and may cause marked elevation of supine arterial blood pressure, or supine hypertension. In clinical trials, systolic pressures of about 200 mmHg were observed overall in about 13.4% of patients given 10 mg of midodrine, the majority of whom also had relatively elevated pretreatment systolic blood pressures (mean 170 mmHg). There is no experience in patients with initial supine systolic pressure above 180 mmHg, as those patients were excluded from clinical trials. Sitting blood pressures were also elevated by midodrine therapy.

MANAGEMENT: Caution is advised if midodrine must be used in combination with other agents that can increase blood pressure. Supine and sitting blood pressures should be closely monitored. Supine hypertension can often be controlled by keeping the patient from being fully supine, for example, sleeping with the head of the bed elevated. Taking the last daily dose of midodrine 3 to 4 hours before bedtime may also help to minimize nighttime supine hypertension. Patients should be advised to contact their physician immediately if they experience symptoms of supine hypertension such as cardiac awareness, pounding in the ears, headache, and blurred vision. Midodrine should be discontinued if supine hypertension persists.

References

  1. "Product Information. ProAmatine (midodrine)." Roberts Pharmaceutical Corporation PROD (2001):
  2. Cerner Multum, Inc. "UK Summary of Product Characteristics." O 0

Switch to consumer interaction data

Drug and food interactions

Moderate

phenylephrine food

Applies to: Ricobid-D (phenylephrine)

MONITOR: Coadministration of two or more sympathomimetic agents may increase the risk of adverse effects such as nervousness, irritability, and increased heart rate. Central nervous system (CNS) stimulants, particularly amphetamines, can potentiate the adrenergic response to vasopressors and other sympathomimetic agents. Additive increases in blood pressure and heart rate may occur due to enhanced peripheral sympathetic activity.

MANAGEMENT: Caution is advised if two or more sympathomimetic agents are coadministered. Pulse and blood pressure should be closely monitored.

References

  1. Rosenblatt JE, Lake CR, van Kammen DP, Ziegler MG, Bunney WE Jr "Interactions of amphetamine, pimozide, and lithium on plasma norepineophrine and dopamine-beta-hydroxylase in schizophrenic patients." Psychiatry Res 1 (1979): 45-52
  2. Cavanaugh JH, Griffith JD, Oates JA "Effect of amphetamine on the pressor response to tyramine: formation of p-hydroxynorephedrine from amphetamine in man." Clin Pharmacol Ther 11 (1970): 656
  3. "Product Information. Adderall (amphetamine-dextroamphetamine)." Shire Richwood Pharmaceutical Company Inc PROD (2001):
  4. "Product Information. Tenuate (diethylpropion)." Aventis Pharmaceuticals PROD (2001):
  5. "Product Information. Sanorex (mazindol)." Novartis Pharmaceuticals PROD (2001):
  6. "Product Information. Focalin (dexmethylphenidate)." Mikart Inc (2001):
  7. "Product Information. Strattera (atomoxetine)." Lilly, Eli and Company (2002):
View all 7 references

Switch to consumer interaction data

Therapeutic duplication warnings

Therapeutic duplication is the use of more than one medicine from the same drug category or therapeutic class to treat the same condition. This can be intentional in cases where drugs with similar actions are used together for demonstrated therapeutic benefit. It can also be unintentional in cases where a patient has been treated by more than one doctor, or had prescriptions filled at more than one pharmacy, and can have potentially adverse consequences.

Duplication

Sympathomimetics

Therapeutic duplication

The recommended maximum number of medicines in the 'sympathomimetics' category to be taken concurrently is usually one. Your list includes two medicines belonging to the 'sympathomimetics' category:

  • midodrine
  • Ricobid-D (phenylephrine)

Note: In certain circumstances, the benefits of taking this combination of drugs may outweigh any risks. Always consult your healthcare provider before making changes to your medications or dosage.

Duplication

Sympathomimetic amines

Therapeutic duplication

The recommended maximum number of medicines in the 'sympathomimetic amines' category to be taken concurrently is usually one. Your list includes two medicines belonging to the 'sympathomimetic amines' category:

  • midodrine
  • Ricobid-D (phenylephrine)

Note: In certain circumstances, the benefits of taking this combination of drugs may outweigh any risks. Always consult your healthcare provider before making changes to your medications or dosage.

See also

Report options

Loading...
QR code containing a link to this page

Drug Interaction Classification

These classifications are only a guideline. The relevance of a particular drug interaction to a specific individual is difficult to determine. Always consult your healthcare provider before starting or stopping any medication.
Major Highly clinically significant. Avoid combinations; the risk of the interaction outweighs the benefit.
Moderate Moderately clinically significant. Usually avoid combinations; use it only under special circumstances.
Minor Minimally clinically significant. Minimize risk; assess risk and consider an alternative drug, take steps to circumvent the interaction risk and/or institute a monitoring plan.
Unknown No interaction information available.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

Medical Disclaimer