Can you take G-Phed- PD with Miglitol?
1 drug interaction and 18 additional warnings found for the following 2 drugs:
- G-Phed- PD (guaifenesin/pseudoephedrine)
- miglitol
Drug interactions
Moderate drug interactions
Moderate:
pseudoephedrine miglitol
Applies to: G-Phed- PD (guaifenesin / pseudoephedrine) and miglitol
Pseudoephedrine may interfere with blood glucose control and reduce the effectiveness of miglitol and other diabetic medications. Monitor your blood sugar levels closely. You may need a dose adjustment of your diabetic medications during and after treatment with pseudoephedrine. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.
Food/lifestyle interactions
Moderate food/lifestyle interactions
Moderate:
miglitol Food/Lifestyle
Applies to: miglitol
Alcohol may affect blood glucose levels in patients with diabetes. Both hypoglycemia (low blood sugar) and hyperglycemia (high blood sugar) may occur, depending on how much and how often you drink. You should avoid using alcohol if your diabetes is not well controlled or if you have high triglycerides, neuropathy (nerve damage), or pancreatitis. Moderate alcohol consumption generally does not affect blood glucose levels if your diabetes is under control. However, it may be best to limit alcohol intake to one drink daily for women and two drinks daily for men (1 drink = 5 oz wine, 12 oz beer, or 1.5 oz distilled spirits) in conjunction with your normal meal plan. Avoid drinking alcohol on an empty stomach or following exercise, as it may increase the risk of hypoglycemia. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.
Moderate:
pseudoephedrine Caffeine
Applies to: G-Phed- PD (guaifenesin / pseudoephedrine)
Both pseudoephedrine and caffeine can increase blood pressure and heart rate, and combining them may enhance these effects. Talk to your doctor before using these medications, especially if you have a history of high blood pressure or heart disease. You may need a dose adjustment or more frequent monitoring by your doctor to safely use both medications. Contact your doctor if your condition changes or you experience increased side effects. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.
Disease interactions
16 potential interactions Applies to: 16 conditions, including Benign Prostatic Hyperplasia, Hyperthyroidism, Diabetes Mellitus, Cardiovascular Conditions and Disorders, and Glaucoma/Intraocular Hypertension.
Benign Prostatic Hyperplasia
Moderate:
G-Phed- PD
The pseudoephedrine in G-Phed- PD has a moderate potential interaction with Benign Prostatic Hyperplasia.
Sympathomimetic agents may cause or worsen urinary difficulty in patients with prostate enlargement due to smooth muscle contraction in the bladder neck via stimulation of alpha-1 adrenergic receptors. Therapy with sympathomimetic agents should be administered cautiously in patients with hypertrophy or neoplasm of the prostate.
Cardiovascular Conditions and Disorders
Major:
G-Phed- PD
The pseudoephedrine in G-Phed- PD has a major potential interaction with Cardiovascular Conditions and Disorders.
Sympathomimetic agents may cause adverse cardiovascular effects, particularly when used in high dosages and/or in susceptible patients. In cardiac tissues, these agents may produce positive chronotropic and inotropic effects via stimulation of beta- 1 adrenergic receptors. Cardiac output, oxygen consumption, and the work of the heart may be increased. In the peripheral vasculature, vasoconstriction may occur via stimulation of alpha-1 adrenergic receptors. Palpitations, tachycardia, arrhythmia, hypertension, reflex bradycardia, coronary occlusion, cerebral vasculitis, myocardial infarction, cardiac arrest, and death have been reported. Some of these agents, particularly ephedra alkaloids (ephedrine, ma huang, phenylpropanolamine), may also predispose patients to hemorrhagic and ischemic stroke. Therapy with sympathomimetic agents should generally be avoided or administered cautiously in patients with sensitivity to sympathomimetic amines, hyperthyroidism, or underlying cardiovascular or cerebrovascular disorders. These agents should not be used in patients with severe coronary artery disease or severe/uncontrolled hypertension.
Cerebrovascular Insufficiency
Major:
G-Phed- PD
The pseudoephedrine in G-Phed- PD has a major potential interaction with Cerebrovascular Insufficiency.
Sympathomimetic agents may cause adverse cardiovascular effects, particularly when used in high dosages and/or in susceptible patients. In cardiac tissues, these agents may produce positive chronotropic and inotropic effects via stimulation of beta- 1 adrenergic receptors. Cardiac output, oxygen consumption, and the work of the heart may be increased. In the peripheral vasculature, vasoconstriction may occur via stimulation of alpha-1 adrenergic receptors. Palpitations, tachycardia, arrhythmia, hypertension, reflex bradycardia, coronary occlusion, cerebral vasculitis, myocardial infarction, cardiac arrest, and death have been reported. Some of these agents, particularly ephedra alkaloids (ephedrine, ma huang, phenylpropanolamine), may also predispose patients to hemorrhagic and ischemic stroke. Therapy with sympathomimetic agents should generally be avoided or administered cautiously in patients with sensitivity to sympathomimetic amines, hyperthyroidism, or underlying cardiovascular or cerebrovascular disorders. These agents should not be used in patients with severe coronary artery disease or severe/uncontrolled hypertension.
Colonic Ulceration
Major:
miglitol
Miglitol has a major potential interaction with Colonic Ulceration.
The use of alpha-glucosidase inhibitors is contraindicated in patients with inflammatory bowel disease, colonic ulceration, partial intestinal obstruction, or any chronic intestinal disease associated with marked disorders of digestion or absorption. Alpha-glucosidase inhibitors competitively inhibit enzymes involved in the digestion of carbohydrates. Increased gas formation in the intestines due to fermentation of the undigested carbohydrates can worsen or aggravate intestinal problems.
Diabetes Mellitus
Moderate:
G-Phed- PD
The pseudoephedrine in G-Phed- PD has a moderate potential interaction with Diabetes Mellitus.
Sympathomimetic agents may cause increases in blood glucose concentrations. These effects are usually transient and slight but may be significant with dosages higher than those normally recommended. Therapy with sympathomimetic agents should be administered cautiously in patients with diabetes mellitus. Closer monitoring of blood glucose concentrations may be appropriate.
Diabetic Ketoacidosis
Major:
miglitol
Miglitol has a major potential interaction with Diabetic Ketoacidosis.
The use of alpha-glucosidase inhibitors is contraindicated for the treatment of patients with diabetic ketoacidosis.
Gastrointestinal Obstruction
Moderate:
G-Phed- PD
The pseudoephedrine in G-Phed- PD has a moderate potential interaction with Gastrointestinal Obstruction.
The extended-release formulation of pseudoephedrine (Sudafed 24 Hour) contains a non-deformable material. There have been rare reports of obstructive symptoms in patients with known strictures following the ingestion of similar sustained-release products. Therapy with the extended-release formulation of pseudoephedrine should be administered cautiously in patients with preexisting severe gastrointestinal narrowing or obstruction, whether pathologic or iatrogenic.
Glaucoma/Intraocular Hypertension
Moderate:
G-Phed- PD
The pseudoephedrine in G-Phed- PD has a moderate potential interaction with Glaucoma/Intraocular Hypertension.
Sympathomimetic agents can induce transient mydriasis via stimulation of alpha-1 adrenergic receptors. In patients with anatomically narrow angles or narrow-angle glaucoma, pupillary dilation can provoke an acute attack. In patients with other forms of glaucoma, mydriasis may occasionally increase intraocular pressure. Therapy with sympathomimetic agents should be administered cautiously in patients with or predisposed to glaucoma, particularly narrow-angle glaucoma.
Hyperthyroidism
Major:
G-Phed- PD
The pseudoephedrine in G-Phed- PD has a major potential interaction with Hyperthyroidism.
Sympathomimetic agents may cause adverse cardiovascular effects, particularly when used in high dosages and/or in susceptible patients. In cardiac tissues, these agents may produce positive chronotropic and inotropic effects via stimulation of beta- 1 adrenergic receptors. Cardiac output, oxygen consumption, and the work of the heart may be increased. In the peripheral vasculature, vasoconstriction may occur via stimulation of alpha-1 adrenergic receptors. Palpitations, tachycardia, arrhythmia, hypertension, reflex bradycardia, coronary occlusion, cerebral vasculitis, myocardial infarction, cardiac arrest, and death have been reported. Some of these agents, particularly ephedra alkaloids (ephedrine, ma huang, phenylpropanolamine), may also predispose patients to hemorrhagic and ischemic stroke. Therapy with sympathomimetic agents should generally be avoided or administered cautiously in patients with sensitivity to sympathomimetic amines, hyperthyroidism, or underlying cardiovascular or cerebrovascular disorders. These agents should not be used in patients with severe coronary artery disease or severe/uncontrolled hypertension.
Intestinal Obstruction
Major:
miglitol
Miglitol has a major potential interaction with Intestinal Obstruction.
The use of alpha-glucosidase inhibitors is contraindicated in patients with inflammatory bowel disease, colonic ulceration, partial intestinal obstruction, or any chronic intestinal disease associated with marked disorders of digestion or absorption. Alpha-glucosidase inhibitors competitively inhibit enzymes involved in the digestion of carbohydrates. Increased gas formation in the intestines due to fermentation of the undigested carbohydrates can worsen or aggravate intestinal problems.
Malabsorption Syndrome
Major:
miglitol
Miglitol has a major potential interaction with Malabsorption Syndrome.
The use of alpha-glucosidase inhibitors is contraindicated in patients with inflammatory bowel disease, colonic ulceration, partial intestinal obstruction, or any chronic intestinal disease associated with marked disorders of digestion or absorption. Alpha-glucosidase inhibitors competitively inhibit enzymes involved in the digestion of carbohydrates. Increased gas formation in the intestines due to fermentation of the undigested carbohydrates can worsen or aggravate intestinal problems.
Noninfectious Colitis
Major:
miglitol
Miglitol has a major potential interaction with Noninfectious Colitis.
The use of alpha-glucosidase inhibitors is contraindicated in patients with inflammatory bowel disease, colonic ulceration, partial intestinal obstruction, or any chronic intestinal disease associated with marked disorders of digestion or absorption. Alpha-glucosidase inhibitors competitively inhibit enzymes involved in the digestion of carbohydrates. Increased gas formation in the intestines due to fermentation of the undigested carbohydrates can worsen or aggravate intestinal problems.
Phenylketonuria
Moderate:
G-Phed- PD
The pseudoephedrine in G-Phed- PD has a moderate potential interaction with Phenylketonuria.
Chewable products frequently may contain aspartame, which is metabolized in the gastrointestinal tract to phenylalanine. Sudafed (brand of pseudoephedrine) chewable 15 mg tablets provide the equivalent of 0.78 mg of phenylalanine per each tablet. The aspartame/phenylalanine content should be considered when this and similar products are used in patients who must restrict their intake of phenylalanine (i.e. phenylketonurics).
Pheochromocytoma
Major:
G-Phed- PD
The pseudoephedrine in G-Phed- PD has a major potential interaction with Pheochromocytoma.
Sympathomimetic agents may cause adverse cardiovascular effects, particularly when used in high dosages and/or in susceptible patients. In cardiac tissues, these agents may produce positive chronotropic and inotropic effects via stimulation of beta- 1 adrenergic receptors. Cardiac output, oxygen consumption, and the work of the heart may be increased. In the peripheral vasculature, vasoconstriction may occur via stimulation of alpha-1 adrenergic receptors. Palpitations, tachycardia, arrhythmia, hypertension, reflex bradycardia, coronary occlusion, cerebral vasculitis, myocardial infarction, cardiac arrest, and death have been reported. Some of these agents, particularly ephedra alkaloids (ephedrine, ma huang, phenylpropanolamine), may also predispose patients to hemorrhagic and ischemic stroke. Therapy with sympathomimetic agents should generally be avoided or administered cautiously in patients with sensitivity to sympathomimetic amines, hyperthyroidism, or underlying cardiovascular or cerebrovascular disorders. These agents should not be used in patients with severe coronary artery disease or severe/uncontrolled hypertension.
Prostate Tumor, Benign
Moderate:
G-Phed- PD
The pseudoephedrine in G-Phed- PD has a moderate potential interaction with Prostate Tumor, Benign.
Sympathomimetic agents may cause or worsen urinary difficulty in patients with prostate enlargement due to smooth muscle contraction in the bladder neck via stimulation of alpha-1 adrenergic receptors. Therapy with sympathomimetic agents should be administered cautiously in patients with hypertrophy or neoplasm of the prostate.
Renal Dysfunction
Major:
miglitol
Miglitol has a major potential interaction with Renal Dysfunction.
Miglitol is eliminated primarily by the kidney. Plasma miglitol levels in patients with renal impairment have been shown to proportionally increase relative to the degree of renal dysfunction. However, long-term clinical trials in diabetic patients with significant renal dysfunction (serum creatinine > 2.0 mg/dL) have not been conducted. Therapy with miglitol should be administered cautiously in patients with renal insufficiency. The manufacturer does not recommend its use in patients with significantly impaired renal function.
More resources
G-Phed- PD
A total of 237 drugs are known to interact with G-Phed- PD.
- G-phed- pd is in the drug class upper respiratory combinations.
- G-phed- pd is used to treat Cough and Nasal Congestion.
miglitol
A total of 310 drugs are known to interact with miglitol.
- Miglitol is in the drug class alpha-glucosidase inhibitors.
- Miglitol is used to treat Type 2 Diabetes.
Drug Interaction Classification
| Highly clinically significant. Avoid combinations; the risk of the interaction outweighs the benefit. | |
| Moderately clinically significant. Usually avoid combinations; use it only under special circumstances. | |
| 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. | |
| No interaction information available. |
Further information
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.