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Protioamphetamine Dosage |
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Generic name: Protioamphetamine 2.5mg in 1mL
Dosage form: suspension, extended release
The information at Drugs.com is not a substitute for medical advice. Always consult your doctor or pharmacist.
Prior to treating children, adolescents, and adults with CNS stimulants, including Protioamphetamine, assess for the presence of cardiac disease (i.e., perform a careful history, family history of sudden death or ventricular arrhythmia, and physical exam).
Assess the risk of abuse prior to prescribing, and monitor for signs of abuse and dependence while on therapy. Maintain careful prescription records, educate patients about abuse, monitor for signs of abuse and overdose, and periodically re-evaluate the need for Protioamphetamine use.
Protioamphetamine should be orally administered once daily in the morning with or without food. The dose should be individualized according to the needs and responses of the patient. Before administering the dose, shake the bottle of Protioamphetamine.
In children 6 years of age and older, start with 2.5 mg or 5 mg once daily in the morning. The dose may be increased in increments of 2.5 mg to 10 mg per day every 4 to 7 days up to a maximum dose of 20 mg per day.
Pharmacological treatment of ADHD may be needed for extended periods. Healthcare providers should periodically re-evaluate the long-term use of Protioamphetamine, and adjust dosage as needed.
If switching from other Protioamphetamine products, discontinue that treatment, and titrate with Protioamphetamine using the above titration schedule.
Do not substitute for other Protioamphetamine products on a milligram-per-milligram basis, because of different Protioamphetamine base compositions and differing pharmacokinetic profiles.
Agents that alter urinary pH can impact urinary excretion and alter blood levels of Protioamphetamine. Acidifying agents (e.g., ascorbic acid) decrease blood levels, while alkalinizing agents (e.g., sodium bicarbonate) increase blood levels. Adjust Protioamphetamine dosage accordingly.
Do not take Protioamphetamine if you have taken a monoamine oxidase inhibitor (MAOI) such as isocarboxazid (Marplan), tranylcypromine (Parnate), or phenelzine (Nardil) in the last 14 days.
Before taking Protioamphetamine, tell your doctor if you are taking any of the following medicines:
insulin or another medicine to treat diabetes;
guanethidine (Ismelin) or reserpine (Diutensin-R);
doxazosin (Cardura), terazosin (Hytrin), prazosin (Minipress), or guanadrel(Hylorel);
a tricyclic antidepressant such as amitriptyline (Elavil), amoxapine (Asendin), doxepin (Sinequan), nortriptyline (Pamelor), imipramine (Tofranil), clomipramine (Anafranil), protriptyline (Vivactil), or desipramine (Norpramin)
a phenothiazine such as chlorpromazine (Thorazine);
lithium (Lithobid, Lithonate, Eskalith, others); or
haloperidol (Haldol).
You may not be able to take Protioamphetamine, or you may require a dosage adjustment or special monitoring during treatment if you are taking any of the medicines listed above.
Drugs other than those listed here may also interact with Protioamphetamine. Talk to your doctor and pharmacist before taking any prescription or over-the-counter medicines, including herbal products.
Table 5: Drugs having clinically important interactions with amphetamines.
MAO Inhibitors (MAOI) | |
Clinical Impact | MAOI antidepressants slow Protioamphetamine metabolism, increasing amphetamines effect on the release of norepinephrine and other monoamines from adrenergic nerve endings causing headaches and other signs of hypertensive crisis. Toxic neurological effects and malignant hyperpyrexia can occur, sometimes with fatal results. |
Intervention | Do not administer Protioamphetamine during or within 14 days following the administration of MAOI. |
Examples | selegiline, isocarboxazid, phenelzine, tranylcypromine |
Alkalinizing Agents | |
Clinical Impact | Increase blood levels and potentiate the action of Protioamphetamine. |
Intervention | Co-administration of Protioamphetamine and gastrointestinal alkalinizing agents should be avoided. |
Examples | Gastrointestinal alkalinizing agents (e.g., sodium bicarbonate). Urinary alkalinizing agents (e.g., acetazolamide, some thiazides). |
Acidifying Agents | |
Clinical Impact | Lower blood levels and efficacy of amphetamines. |
Intervention | Increase dose based on clinical response. |
Examples | Gastrointestinal acidifying agents (e.g., guanethidine, reserpine, glutamic acid HCl, ascorbic acid). |
Tricyclic Antidepressants | |
Clinical Impact | May enhance the activity of tricyclic or sympathomimetic agents causing striking and sustained increases in the concentration of d-Protioamphetamine in the brain; cardiovascular effects can be potentiated. |
Intervention | Monitor frequently and adjust or use alternative therapy based on clinical response. |
Examples | desipramine, protriptyline |
Proton Pump Inhibitors | |
Clinical Impact | Time to maximum concentration (Tmax) of Protioamphetamine is increased compared to when administered alone. |
Intervention | Monitor patients for changes in clinical effect and adjust therapy based on clinical response. |
Example | omeprazole |
Amphetamines can cause a significant elevation in plasma corticosteroid levels. This increase is greatest in the evening. Amphetamines may interfere with urinary steroid determinations.
Protioamphetamine contains Amphetamine, which is a Schedule II controlled substance in the U.S. Controlled Substance Act (CSA).
Protioamphetamine, is a CNS stimulant that contains Amphetamine which has a high potential for abuse. Abuse is characterized by impaired control of drug use, compulsive use despite harm, and craving.
Signs and symptoms of Protioamphetamine abuse may include increased heart rate, respiratory rate, blood pressure, and/or sweating, dilated pupils, hyperactivity, restlessness, insomnia, decreased appetite, loss of coordination, tremors, flushed skin, vomiting, and/or abdominal pain. Anxiety, psychosis, hostility, aggression, suicidal or homicidal ideation have also been observed. Abusers of amphetamines may use other unapproved routes of administration which can result in overdose and death.
To reduce the abuse of Protioamphetamine, assess the risk of abuse prior to prescribing. After prescribing, keep careful prescription records, educate patients and their families about abuse and proper storage and disposal of CNS stimulants, monitor for signs of abuse while on therapy, and re-evaluate the need for Protioamphetamine use.
Tolerance
Tolerance (a state of adaptation in which exposure to a drug results in a reduction of the drug’s desired and/or undesired effects over time) may occur during the chronic therapy of CNS stimulants including Protioamphetamine.
Dependence
Physical dependence (which is manifested by a withdrawal syndrome produced by abrupt cessation, rapid dose reduction, or administration of an antagonist) may occur in patients treated with CNS stimulants including Protioamphetamine. Withdrawal symptoms after abrupt cessation following prolonged high dosage administration of CNS stimulants include dysphoric mood; fatigue; vivid, unpleasant dreams; insomnia or hypersomnia; increased appetite; and psychomotor retardation or agitation.
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Information checked by Dr. Sachin Kumar, MD Pharmacology
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