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Registry Hub
Peer-Reviewed Evidence
HomeDrug RegistryComparePOTASSIUM CHLORIDE IN PLASTIC CONTAINER vs POTASSIUM CHLORIDE 20MEQ
Comparative Pharmacology

POTASSIUM CHLORIDE IN PLASTIC CONTAINER vs POTASSIUM CHLORIDE 20MEQ Comparison

Head-to-head clinical analysis & difference comparison: details on mechanism of action, dosing, half-life, interactions, and maternal-fetal safety.

Clinical EssentialsPharmacokineticsSpecial PopulationsSafety & MonitoringPregnancy & LactationClinical Insights
Differential Analysis

POTASSIUM CHLORIDE IN PLASTIC CONTAINER vs POTASSIUM CHLORIDE 20MEQ

Clinician-reviewed, head-to-head comparison of mechanism, dosing, pharmacokinetics, and safety profiles.

View POTASSIUM CHLORIDE IN PLASTIC CONTAINER Monograph View POTASSIUM CHLORIDE 20MEQ Monograph
POTASSIUM CHLORIDE IN PLASTIC CONTAINER
Electrolyte Replenisher
Category C
POTASSIUM CHLORIDE 20MEQ
Electrolyte Replenisher
Category C
TL;DR — Key Differences
  • Half-life: POTASSIUM CHLORIDE IN PLASTIC CONTAINER has a half-life of No classical terminal half-life; plasma potassium is rapidly regulated by cellular uptake and renal excretion, with equilibration half-life of ~1-2 hours in normal renal function.; POTASSIUM CHLORIDE 20MEQ has Terminal elimination half-life is approximately 5-6 hours; clinical context: varies with renal function and potassium loads.
  • No direct drug-drug interaction has been documented between POTASSIUM CHLORIDE IN PLASTIC CONTAINER and POTASSIUM CHLORIDE 20MEQ.
  • Pregnancy: POTASSIUM CHLORIDE IN PLASTIC CONTAINER is rated Category C; POTASSIUM CHLORIDE 20MEQ is rated Category C.

Last clinically reviewed: July 2026 · OpiCalc Medical Review Team

Clinical Essentials

POTASSIUM CHLORIDE IN PLASTIC CONTAINER
POTASSIUM CHLORIDE 20MEQ
Mechanism of Action
POTASSIUM CHLORIDE IN PLASTIC CONTAINER

Potassium chloride dissociates to potassium ions, which are essential for maintenance of intracellular tonicity, nerve impulse conduction, muscle contraction, and cardiac function.

POTASSIUM CHLORIDE 20MEQ

Potassium is the primary intracellular cation essential for maintaining cell membrane potential, nerve impulse transmission, muscle contraction, and acid-base balance. Potassium chloride supplementation corrects hypokalemia and prevents potassium depletion.

Indications
POTASSIUM CHLORIDE IN PLASTIC CONTAINER

Treatment or prevention of hypokalemia,Correction of potassium deficiency in patients on diuretics or with potassium-depleting conditions,Parenteral nutrition supplementation

POTASSIUM CHLORIDE 20MEQ

Treatment and prevention of hypokalemia,Digitalis intoxication (when hypokalemia is present),Correction of potassium deficiency due to diuretic therapy, vomiting, diarrhea, or other causes

Standard Dosing
POTASSIUM CHLORIDE IN PLASTIC CONTAINER

10-20 m Eq intravenously over 1 hour, not exceeding 10 m Eq/hour or 200 m Eq per day; oral dosing for hypokalemia: 20-40 m Eq 2-4 times daily.

POTASSIUM CHLORIDE 20MEQ

Oral: 20 m Eq (one tablet or packet) once or twice daily, with or after meals; maximum 40 m Eq per dose and 100 m Eq per day. Intravenous: 10-20 m Eq/hour, not exceeding 20 m Eq/hour or 200 m Eq/day; central line administration preferred for concentrations >40 m Eq/L.

Direct Interaction
POTASSIUM CHLORIDE IN PLASTIC CONTAINER
No Direct Interaction
POTASSIUM CHLORIDE 20MEQ
No Direct Interaction

Pharmacokinetics

POTASSIUM CHLORIDE IN PLASTIC CONTAINER
POTASSIUM CHLORIDE 20MEQ
Half-Life
POTASSIUM CHLORIDE IN PLASTIC CONTAINER

No classical terminal half-life; plasma potassium is rapidly regulated by cellular uptake and renal excretion, with equilibration half-life of ~1-2 hours in normal renal function.

POTASSIUM CHLORIDE 20MEQ

Terminal elimination half-life is approximately 5-6 hours; clinical context: varies with renal function and potassium loads

Metabolism
POTASSIUM CHLORIDE IN PLASTIC CONTAINER

Potassium is not metabolized but is primarily excreted by the kidneys. Excreted mainly as potassium ions in urine.

POTASSIUM CHLORIDE 20MEQ

Potassium is not metabolized; it is primarily excreted by the kidneys (90%) with small amounts lost in feces and sweat.

Excretion
POTASSIUM CHLORIDE IN PLASTIC CONTAINER

Primarily renal (90% excreted unchanged in urine); minor fecal elimination (<10%) via unabsorbed potassium.

POTASSIUM CHLORIDE 20MEQ

Renal: >90% (primarily as potassium ions), Fecal: <10% (unabsorbed)

Protein Binding
POTASSIUM CHLORIDE IN PLASTIC CONTAINER

Not protein-bound (free ion; negligible binding to albumin).

POTASSIUM CHLORIDE 20MEQ

Approximately 0-10% (minimally bound; no specific binding proteins)

VD (L/kg)
POTASSIUM CHLORIDE IN PLASTIC CONTAINER

0.5-0.6 L/kg (total body water); distributes primarily in extracellular fluid (14% of body weight).

POTASSIUM CHLORIDE 20MEQ

Approximately 0.5-1.0 L/kg (distributes primarily in extracellular fluid with gradual intracellular uptake)

Bioavailability
POTASSIUM CHLORIDE IN PLASTIC CONTAINER

Oral: 90-100% (well absorbed from small intestine); IV: 100%.

POTASSIUM CHLORIDE 20MEQ

Oral: 80-100% (absorption nearly complete, minimal first-pass metabolism)

Special Populations

POTASSIUM CHLORIDE IN PLASTIC CONTAINER
POTASSIUM CHLORIDE 20MEQ
Renal Adjustments
POTASSIUM CHLORIDE IN PLASTIC CONTAINER

GFR 10-30 m L/min: reduce dose by 50%; GFR <10 m L/min: avoid use or use with extreme caution, maximum 40 m Eq/day.

POTASSIUM CHLORIDE 20MEQ

GFR ≥60 m L/min: no adjustment. GFR 30-59: use with caution, reduce dose by 25-50%. GFR <30: avoid use due to risk of hyperkalemia.

Hepatic Adjustments
POTASSIUM CHLORIDE IN PLASTIC CONTAINER

No specific adjustment required; monitor potassium levels closely in severe hepatic impairment due to risk of hyperkalemia.

POTASSIUM CHLORIDE 20MEQ

No specific dose adjustment recommended. Monitor potassium levels closely in patients with severe hepatic impairment due to potential for acid-base disturbances.

Pediatric Dosing
POTASSIUM CHLORIDE IN PLASTIC CONTAINER

0.5-1 m Eq/kg/dose intravenously, maximum rate 0.5 m Eq/kg/hour; oral: 1-3 m Eq/kg/day divided 2-4 times daily.

POTASSIUM CHLORIDE 20MEQ

Neonates and infants: 1-2 m Eq/kg/day divided. Children: 1-3 m Eq/kg/day divided, not to exceed 1 m Eq/kg/hour IV or 40 m Eq/dose. Adjust based on serum potassium.

Geriatric Dosing
POTASSIUM CHLORIDE IN PLASTIC CONTAINER

Initiate at lower end of dosing range; monitor renal function and potassium levels frequently due to age-related decline in renal function.

POTASSIUM CHLORIDE 20MEQ

Start at lower end of dosing range (10-20 m Eq/day oral) due to age-related decline in renal function. Monitor potassium and renal function frequently.

Safety & Monitoring

POTASSIUM CHLORIDE IN PLASTIC CONTAINER
POTASSIUM CHLORIDE 20MEQ
Black Box Warnings
POTASSIUM CHLORIDE IN PLASTIC CONTAINER
FDA Black Box Warning

Potassium chloride injection concentrate must be diluted before use to avoid fatal hyperkalemia. High concentrations may cause cardiac arrest. Do not administer undiluted.

POTASSIUM CHLORIDE 20MEQ
FDA Black Box Warning

Potassium chloride injections concentrate (≥2 m Eq/m L) must be diluted before use to avoid fatal hyperkalemia. Accidental administration of undiluted concentrate can cause cardiac arrest.

Warnings/Precautions
POTASSIUM CHLORIDE IN PLASTIC CONTAINER

Risk of hyperkalemia, especially in renal impairment. Monitor serum potassium levels. Use with caution in patients with cardiac disease, adrenal insufficiency, or acid-base disorders. Avoid rapid infusion. Do not add to blood products.

POTASSIUM CHLORIDE 20MEQ

Hyperkalemia risk, especially in renal impairment, rapid IV administration, or with potassium-sparing diuretics,Cardiac monitoring required during IV infusion,GI ulceration or perforation with oral solid dosage forms (use liquid or powder if GI stasis),Use caution in patients with cardiac disease, renal impairment, or acid-base disorders,ECG changes may precede hyperkalemia

Contraindications
POTASSIUM CHLORIDE IN PLASTIC CONTAINER

Severe renal impairment with oliguria, anuria, or azotemia; untreated Addison's disease; adynamia episodica hereditaria; hyperkalemia; conditions causing potassium retention; concurrent use of potassium-sparing diuretics.

POTASSIUM CHLORIDE 20MEQ

Hyperkalemia (serum potassium >5 m Eq/L),Renal failure with oliguria or anuria,Severe hemolytic reactions,Addison's disease,Acute dehydration,Heat cramps,Concurrent use of potassium-sparing diuretics (e.g., spironolactone, triamterene, amiloride),Solid oral forms in patients with delayed GI transit

Adverse Reactions
POTASSIUM CHLORIDE IN PLASTIC CONTAINER
Data Pending
POTASSIUM CHLORIDE 20MEQ
Data Pending
Food Interactions
POTASSIUM CHLORIDE IN PLASTIC CONTAINER

Avoid excessive intake of potassium-rich foods (bananas, oranges, spinach, potatoes, avocados, dried fruits) without medical supervision. Avoid salt substitutes containing potassium chloride. Do not combine with potassium-containing dietary supplements.

POTASSIUM CHLORIDE 20MEQ

Avoid high-potassium foods (e.g., bananas, oranges, potatoes, spinach, avocados, tomatoes, dried fruits, salt substitutes) when on high-dose potassium therapy. Alcohol may increase potassium loss. Grapefruit juice does not interact significantly.

Pregnancy & Lactation

POTASSIUM CHLORIDE IN PLASTIC CONTAINER
POTASSIUM CHLORIDE 20MEQ
Teratogenic Risk
POTASSIUM CHLORIDE IN PLASTIC CONTAINER

Potassium chloride is considered to have low teratogenic risk. No evidence of fetal harm in first trimester. Normal physiological potassium levels are essential for fetal development; both hypo- and hyperkalemia may pose risks. Second and third trimesters: maternal hyperkalemia can affect fetal cardiac function.

POTASSIUM CHLORIDE 20MEQ

Potassium chloride is not teratogenic. Normal maternal potassium levels are essential for fetal development; both hypokalemia and hyperkalemia can cause adverse fetal outcomes. No increased risk of congenital anomalies with therapeutic use.

Lactation Summary
POTASSIUM CHLORIDE IN PLASTIC CONTAINER

Potassium is a normal constituent of breast milk. M/P ratio is approximately 1.0. Supplementation at recommended doses is safe during breastfeeding; excessive doses may cause hyperkalemia in infant, but risk is low at typical therapeutic levels.

POTASSIUM CHLORIDE 20MEQ

Potassium chloride is a normal component of breast milk. Supplementation at recommended doses does not pose risk to infant. M/P ratio not applicable as potassium is endogenous; levels in milk reflect maternal plasma levels. Use caution with high doses or potassium imbalance.

Pregnancy Dosing
POTASSIUM CHLORIDE IN PLASTIC CONTAINER

Pregnancy does not typically require dose adjustments for potassium chloride. However, increased plasma volume and GFR may increase potassium requirements in some cases; monitor serum potassium and adjust dosing based on levels. Avoid potassium-sparing diuretics concomitantly.

POTASSIUM CHLORIDE 20MEQ

No dose adjustment required for physiologic pregnancy changes. However, monitor serum potassium frequently due to altered renal function and volume expansion. Adjust dose based on potassium levels to avoid hypokalemia or hyperkalemia.

Maternal Safety Status
POTASSIUM CHLORIDE IN PLASTIC CONTAINER
Category C
POTASSIUM CHLORIDE 20MEQ
Category C

Clinical Insights

POTASSIUM CHLORIDE IN PLASTIC CONTAINER
POTASSIUM CHLORIDE 20MEQ
Clinical Pearls
POTASSIUM CHLORIDE IN PLASTIC CONTAINER

Do not administer undiluted; must be diluted in compatible IV fluid. Rate of infusion should not exceed 10-20 mmol/h in adults to avoid hyperkalemia. Continuous cardiac monitoring recommended for concentrations >40 mmol/L. Avoid in patients with severe renal impairment or metabolic acidosis. Use with caution in patients receiving potassium-sparing diuretics or ACE inhibitors.

POTASSIUM CHLORIDE 20MEQ

Potassium chloride 20 m Eq is typically administered intravenously at a maximum rate of 10 m Eq/hour via central line; peripheral administration should not exceed 10 m Eq in 100 m L and rate of 5 m Eq/hour to avoid phlebitis. Always confirm renal function before administration. ECG monitoring is essential during infusion for signs of hyperkalemia (peaked T waves, widened QRS). Contraindicated in severe renal impairment, untreated Addison's disease, and hyperkalemia.

Patient Counseling
POTASSIUM CHLORIDE IN PLASTIC CONTAINER

Do not stop taking this medication without consulting your doctor.,Report symptoms of hyperkalemia: muscle weakness, irregular heartbeat, tingling in hands/feet.,Maintain adequate dietary potassium only if instructed by your doctor.,Do not use salt substitutes containing potassium without medical advice.,Report any injection site reactions or signs of phlebitis.

POTASSIUM CHLORIDE 20MEQ

Take potassium supplements with food or a full glass of water to reduce stomach upset.,Do not crush or chew extended-release tablets; swallow whole.,Report symptoms of hyperkalemia: muscle weakness, fatigue, tingling in hands/feet, irregular heartbeat.,Avoid salt substitutes containing potassium unless directed by your doctor.,Do not stop taking without consulting your healthcare provider.

Safety Verification

Known Interactions

POTASSIUM CHLORIDE IN PLASTIC CONTAINER Risks3
Atracurium besylate + Potassium chloride
moderate

"Atracurium besylate, a nondepolarizing neuromuscular blocking agent, may enhance the ulcerogenic potential of oral potassium chloride by reducing gastrointestinal motility and increasing local contact time of the potassium chloride tablet with the gastric and intestinal mucosa. This prolonged exposure can heighten the risk of gastrointestinal erosion, bleeding, or perforation, particularly in patients with pre-existing lesions or receiving high-dose potassium supplementation. Clinically, this interaction necessitates close monitoring for signs of gastrointestinal injury when these agents are coadministered."

Methscopolamine bromide + Potassium chloride
moderate

"Methscopolamine bromide, an anticholinergic agent, reduces gastrointestinal motility and delays gastric emptying, which can prolong the contact time of orally administered Potassium chloride (KCl) tablets or capsules with the gastric mucosa. This increased exposure to high concentrations of potassium in the gastrointestinal tract potentiates the local ulcerogenic effect of KCl, leading to a higher risk of esophageal, gastric, or intestinal erosions, ulcers, hemorrhage, perforation, or stricture formation. Clinically, this interaction may present with dysphagia, epigastric pain, hematemesis, melena, or signs of acute abdomen."

Fesoterodine + Potassium chloride
moderate

"Fesoterodine, an anticholinergic agent used for overactive bladder, can reduce gastric motility and prolong gastrointestinal transit time. This effect may increase the local contact time of potassium chloride tablets with the gastrointestinal mucosa, potentiating the ulcerogenic risk of potassium chloride, which can cause esophageal or intestinal ulceration, stenosis, or perforation. The interaction is clinically significant in patients with pre-existing gastrointestinal motility disorders or those taking high-dose potassium supplements."

POTASSIUM CHLORIDE 20MEQ Risks3
Atracurium besylate + Potassium chloride
moderate

"Atracurium besylate, a nondepolarizing neuromuscular blocking agent, may enhance the ulcerogenic potential of oral potassium chloride by reducing gastrointestinal motility and increasing local contact time of the potassium chloride tablet with the gastric and intestinal mucosa. This prolonged exposure can heighten the risk of gastrointestinal erosion, bleeding, or perforation, particularly in patients with pre-existing lesions or receiving high-dose potassium supplementation. Clinically, this interaction necessitates close monitoring for signs of gastrointestinal injury when these agents are coadministered."

Methscopolamine bromide + Potassium chloride
moderate

"Methscopolamine bromide, an anticholinergic agent, reduces gastrointestinal motility and delays gastric emptying, which can prolong the contact time of orally administered Potassium chloride (KCl) tablets or capsules with the gastric mucosa. This increased exposure to high concentrations of potassium in the gastrointestinal tract potentiates the local ulcerogenic effect of KCl, leading to a higher risk of esophageal, gastric, or intestinal erosions, ulcers, hemorrhage, perforation, or stricture formation. Clinically, this interaction may present with dysphagia, epigastric pain, hematemesis, melena, or signs of acute abdomen."

Fesoterodine + Potassium chloride
moderate

"Fesoterodine, an anticholinergic agent used for overactive bladder, can reduce gastric motility and prolong gastrointestinal transit time. This effect may increase the local contact time of potassium chloride tablets with the gastrointestinal mucosa, potentiating the ulcerogenic risk of potassium chloride, which can cause esophageal or intestinal ulceration, stenosis, or perforation. The interaction is clinically significant in patients with pre-existing gastrointestinal motility disorders or those taking high-dose potassium supplements."

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Related Drug Comparisons

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Clinical Q&A

Frequently Asked Questions

Common clinical questions about POTASSIUM CHLORIDE IN PLASTIC CONTAINER vs POTASSIUM CHLORIDE 20MEQ, answered by our medical review team.

1. What is the main difference between POTASSIUM CHLORIDE IN PLASTIC CONTAINER and POTASSIUM CHLORIDE 20MEQ?

POTASSIUM CHLORIDE IN PLASTIC CONTAINER is a Electrolyte Replenisher that works by Potassium chloride dissociates to potassium ions, which are essential for maintenance of intracellular tonicity, nerve impulse conduction, muscle contraction, and cardiac function.. POTASSIUM CHLORIDE 20MEQ is a Electrolyte Replenisher that works by Potassium is the primary intracellular cation essential for maintaining cell membrane potential, nerve impulse transmission, muscle contraction, and acid-base balance. Potassium chloride supplementation corrects hypokalemia and prevents potassium depletion.. They differ in pharmacokinetic profiles, FDA-approved indications, and side effect profiles.

2. Which is stronger: POTASSIUM CHLORIDE IN PLASTIC CONTAINER or POTASSIUM CHLORIDE 20MEQ?

Potency comparisons between POTASSIUM CHLORIDE IN PLASTIC CONTAINER and POTASSIUM CHLORIDE 20MEQ depend on the specific clinical indication. These are both Electrolyte Replenisher agents and are not directly interchangeable by dose. A physician or clinical pharmacist should guide any therapeutic switching decisions.

3. What is the standard dosing for POTASSIUM CHLORIDE IN PLASTIC CONTAINER vs POTASSIUM CHLORIDE 20MEQ?

The standard adult dose of POTASSIUM CHLORIDE IN PLASTIC CONTAINER is: 10-20 m Eq intravenously over 1 hour, not exceeding 10 m Eq/hour or 200 m Eq per day; oral dosing for hypokalemia: 20-40 m Eq 2-4 times daily.. The standard adult dose of POTASSIUM CHLORIDE 20MEQ is: Oral: 20 m Eq (one tablet or packet) once or twice daily, with or after meals; maximum 40 m Eq per dose and 100 m Eq per day. Intravenous: 10-20 m Eq/hour, not exceeding 20 m Eq/hour or 200 m Eq/day; central line administration preferred for concentrations >40 m Eq/L.. Dosing should always be individualized based on indication, renal and hepatic function, age, and other patient factors.

4. Can you take POTASSIUM CHLORIDE IN PLASTIC CONTAINER and POTASSIUM CHLORIDE 20MEQ together?

No direct drug-drug interaction has been formally documented between POTASSIUM CHLORIDE IN PLASTIC CONTAINER and POTASSIUM CHLORIDE 20MEQ in current clinical databases. However, individual patient risk factors including other medications, organ function, and comorbidities should always be evaluated by a qualified healthcare provider.

5. Are POTASSIUM CHLORIDE IN PLASTIC CONTAINER and POTASSIUM CHLORIDE 20MEQ safe during pregnancy?

The maternal-fetal safety profiles differ. POTASSIUM CHLORIDE IN PLASTIC CONTAINER is classified as Category C. Potassium chloride is considered to have low teratogenic risk. No evidence of fetal harm in first trimester. Normal physiological potassium levels are essential for fetal developme. POTASSIUM CHLORIDE 20MEQ is classified as Category C. Potassium chloride is not teratogenic. Normal maternal potassium levels are essential for fetal development; both hypokalemia and hyperkalemia can cause adverse fetal outcomes. No . Always consult a maternal-fetal medicine specialist before taking either drug during pregnancy or lactation.